Wednesday, December 27, 2006
1) Type in about:config" in the FireFox address bar.
2) Right-click and select "New" and then "String"
3) In the first dialog box, as preference name, type in network.protocol-handler.app.mms
4) In the second dialog box, as string value, type in gmplayer (or whatever the path of your media player is - on Windows it will be wmplayer)
Sunday, December 24, 2006
Double-click the speaker icon
1. Choose Options | Properties from the menu.
2. In the Adjust volumes for rectangle, click on Recording.
3. Make sure that only "Microphone" is checked - make sure all others are muted.
4. Choose OK.
5. Choose Options | Properties from the menu.
6. In the Adjust volumes for rectangle, click on Playback
7. Make sure Microphone is muted or volume is turned fully down.
The person at the other end also has to do these steps for best results.
I have some Quicktime .mov files which I want to stitch together. What software can I use? I run XP...
First recommended Windows Movie Maker as being bundled with XP. But it cannot open mov files, of course. Then lent out an old copy of Ulead VideoStudio ver 3 which had come bundled with an old ATI video card (circa 1999-2000, which says it will not work with Windows NT!) Hope it worked. If not, convert mov to avi with MOV2AVI or Rad video tools or something like that...
How to set the security bit in a wireless router ? So that neighbors do not
log into your network ?
Google the exact name of the router, find a manual or user-guide...
The technology is called WEP. (Wired Equivalent Privacy) . So what you have to look for is how to enable WEP...
Thursday, December 21, 2006
Readability - very good.
Battery life - very good so far.
Responsiveness - very very poor. Especially large pdfs - page turn takes 5.5 seconds for a 30 MB pdf! I timed it. Even menu navigation is extremely sluggish. But page turns for BBeB and txt files are quite acceptable - just over 1 sec.
Sony Connect store - no freebies! But easy to use if you don't mind spending dollars.
Fanbase - pretty good, with sites like Mobileread
So far I've been converting whatever I want to read to txt files and then syncing with the Windows only Connect Reader software. Won't experiment too much with Linux sw, since the Reader will go to A soon. Windows sw for converting to LRF would be useful...
Thursday, December 14, 2006
Anyway, here is an email exchange - nothing that videohelp.com cannot solve...
Video material on DV tape captured in to computer using Firewire.
1 Now needs to be converted to VCD. How to preserve the best quality.
2.Suppose the same material is converted to DivX.
3. Any good video editor (open licence) that you are aware of.
1. The best VCD encoding was by TMPGEnc - http://www.tmpgenc.net/ - free
for VCD, need to buy for DVD encoding.
2. Use Virtualdub after XVid codec is installed. http://www.xvid.org/
3. I suppose you want to edit the DV video before it is encoded? In that
case, many of the free apps bundled with DVD writers, camcorders and so on
do an acceptable job - even Microsoft Movie Maker
which is bundled with XP. Generally Titling, fading in and out of scenes
etc can be easily done with any such SW.
In case you want to cut the VCD encoded file, TMPGEnc has some rudimentary
mpg cut and join tools, which seem to be once again as good as the best in
Do you remember using the Panasonic Mpeg encoder ?
Yes, TMPG and Panasonic are equally well rated for quality. Panasonic is
non-free. (and I suspect no longer supported?)
Monday, December 04, 2006
Commented out the last line of import_broadcastcenter_files.sh deleting temp table in database, did the query as
select "filename" from file_id where filename not in (select filename from temp);and
select "filename" from temp where filename not in (select filename from file_id);
Thursday, November 30, 2006
Saturday, November 25, 2006
Steps to set up:
Start->Administrative tools->IIS manager
Right Click on Websites tab on left, choose New->Website, go through the
Choose host header as downloads.radiosai.org or whatever you want to have
Choose the appropriate folder as the home directory
Change dns server records to point downloads.radiosai.org or whatever to the ip
address assigned to our server. (this step can be done only by A for
saicast.org and by me for radiosai.org)
Monday, November 20, 2006
Thursday, November 16, 2006
Wednesday, November 15, 2006
Saturday, November 11, 2006
Thursday, November 02, 2006
Wednesday, November 01, 2006
Yesterday I was talking to KR about open source and mindsets and spouted my views on it, then thought I'd be somewhat two-faced if I did not give equal coverage of the problems with open source and Linux. And basically the problem is that you have to take time to get quite a bit of stuff working.
So, in this case, the installation doc on the website did not help much, but the INSTALL file in the tar.gz download suggested
./configure --with-libevent-dir=/usr/localand hey presto, it works!
While using tor too, one needs to do some manual tweaking - the timeout interval seems too long or something like that, and sometimes the speed drops dramatically. Ctrl-c to stop tor and starting it again makes it faster again.
Sunday, October 29, 2006
But even with properly formatted object tags, IE draws the page very very slowly, even scrolling is very slow. Will have to look for an alternate way of doing things. PB suggests google player...
Copy-paste from a mail I wrote to RI about this:
Adding a (fictitious) date part to the
(relevant) time part seems to
solve the problem when it is a simple string as in testdatetime.asp
In the actual radiosai.asp code, things get more sticky.
There, the time part is a Date/Time formatted recordset field.
yields 10/26/2006 1:00:00 AM which already has a date part tacked on! And the
buggy part is, when the time crosses 6.30 pm, the date part vanishes!
What I did was to convert it into a string using the built-in type conversions
by just adding a space in front of it.
d=" " & rsSGH("dps_Time")
for the times upto midnight and
d="27-Oct-2006 " & rsSGH("dps_Time")
for the times midnight and later.
instead of DateAdd("n",addTime,rsSGH("dps_Time"))
Wednesday, October 25, 2006
Components -> File Associations.
According to http://permalink.gmane.org/gmane.comp.kde.linux/16472
changed the default app for html to firefox, but with a change - firefox needs the "Command" field to be
firefox %u- not
firefox openURL %u text/htmllike for konqueror
Unfortunately mostly Windows. MEncoder is always there... as also the latest MPlayer.
Tuesday, October 24, 2006
the radio button beside it on the right side.
2. Choose 'send a message' from the RHS menu column
3. In the content tab, just put a space as the content, choose Save changes at
4. In the scheduling tab, embargo until a few minutes earlier, or midnight of
the day you want to send. choose save changes at bottom.
5. In the Lists tab choose Sai Inspires list radio button, choose the send
6. Choose process queue from RHS menu. It is safe to close the browser window once it finishes the initial few seconds of processing.
Wednesday, October 18, 2006
has quite a few links, including cacti
and quite a few nice mrtg configuration tricks. The following from "doc" is a nice one.
Here's a mrtg example that simply uses ifconfig to obtain statistical info: ** /etc/mrtg.cfg **
Title[^]: Traffic Analysis for HOST.NAME
Target[eth0]: `/usr/local/bin/mrtg-data eth0`
Title[eth0]: Traffic Analysis for network device eth0 [External]
PageTop[eth0]: Internet Link
Target[lo]: `/usr/local/bin/mrtg-data lo`
Title[lo]: Traffic Analysis for network device lo [localhost]
PageTop[lo]: Local lo / loopback device
if test -z "$DEV"; then echo No device specified; exit 1; fi
INFO=`grep $DEV /proc/net/dev | tr -s ' ' ' ' | cut -d: -f2`
RECEIVE=`echo $INFO | cut -d" " -f1`
TRANSMIT=`echo $INFO | cut -d" " -f9`
UPTIME=`uptime | tr -s ' ' ' ' | cut -d" " -f4-`
Tuesday, October 17, 2006
Monday, October 16, 2006
Sunday, October 15, 2006
Saturday, October 14, 2006
Courtesy Wired Mag.
This might be useful for me too! But I suspect I need 2kB for the Pilot and not 4kB like the iPod.
Friday, October 13, 2006
Tuesday, October 10, 2006
Monday, October 09, 2006
1. A multi-homed Win2K machine was being used as a router between two subnets. Machines on either sides could ping each other, but Windows shares were not accessible - solution?
2. A hardware router, "Broadband router" from DLink, with the requirement again of machines on either side to be able to use Windows shares on both subnets.
I'd collected some links:
for win2000 routing: http://www.duxcw.com/dcforum/DCForumID2/2003.html
An example of a hardware router: http://corz.org/comms/hardware/router/bt.voyager.205_router.recipes.php
For effective routing, make the router the default gateway: http://www.microsoft.com/technet/archive/winntas/deploy/implip.mspx?mfr=true
Told SCh I couldn't help with the DLink router without knowing the exact model number. The other problem he solved himself - the Win2K machine had a firewall running, which was blocking Windows Networking.
Edit: (added 20th Nov, from a mail I sent him on 11th Nov)
Googling 'DLINK DI-524 manual' gives the Dlink page with the manual as well as
a simulation of the web-based configuration wizard. It appears that with this
router, what you want to do - allow machines on the other side of the network
to access windows shares on the inside - is not possible directly. The manual
clearly states that this router only works with NAT - no direct modification
of router tables is possible.
You can use the Virtual Server setting in the router and allow machines
outside to connect to machines inside, but configuring it for more than one
system would be difficult for Windows shares.
Friday, October 06, 2006
error: Found linkable libevent in (system), but it doesn't run, even with -R.Don't know the solution yet.
Maybe specify another using --with-libevent-dir?
Edit - resolved - here.
rpm --rebuild package.src.rpmwhich will compile it and create an rpm file (binary) in /usr/src/RPM/RPMS/i586/ or someplace (which will be printed out)
Then just do
rpm -Uvhof the created rpm file.
Wednesday, October 04, 2006
Wednesday, September 27, 2006
The download part was already researched earlier, with a script from ASP101.com . Slightly modified to prevent people from accessing any files outside the relevant folder, using split(strFilePath,"\") and split(strFilePath,"/").
The asp script would not run at first, and IIS6 was giving a 404 error! Had to go to Web extensions and explicitly allow asp.
Next, it was running out of buffer for larger files. Googled, found that the default buffer was 4 MB. Some of our files are even > 20 MB. While non-buffered solution might have been more elegant, since that has to be implemented site-wide and might cause other weird side effects, decided to go for increasing the buffer. AspBufferingLimit in C:\WINDOWS\system32\inetsrv\metabase.xml
First opened the metabase.xml in Wordpad, modified and tried to save -
couldn't, since IIS was running. Stopped IIS from Services->IIS Mgt (it
stopped SMTP, SSL, WWW Publishing service etc) and then saved, OK.
But when started IIS Mgt, refused to start. Wordpad had corrupted the file,
adding ? in various places. Opened it in Notepad to see line numbers, checked
the various line numbers shown in Event Viewer error messages, guessed the
correct characters (like Proce?s = Process ) and saved the metabase.xml. Then
IIS Mgt service started OK, SMTP, SSL, WWW services started OK, but
stream.radiosai.org website was not showing anything, other websites were OK.
Guessed that some of the corrupted lines were in the logging part, so opened
the logging in Properties of Radiosai Downloads website, added a tick mark to
"Time taken" and restarted the website -> Voila! it works.
Saturday, September 23, 2006
Firefox 1.5 is fast and renders stuff which had problems with my old Mozilla, but it keeps crashing, like when I start typing here without the entire page loading, when I quit while a page is still loading, and so on. Then an X restart is needed to use it again, or else I go back to Mozilla like now.
"VNC will need its port to be open, and by default it is unencrypted.
In case you want to tunnel X over SSH for greater security, you can do that also. You should install and run an X server on the Windows machine. There are many, including free ones based on cygwin.
Xming, a Free Software port of the X Window Server to Microsoft
can be download from
(This is from PB)
(VNC in "listen" mode also probably works - I've not tried this. X-Manager is a shareware X server on Windows which has the ability to connect over ssh built-in.)
Once you have an X-server running on Windows, in putty, tick the check-box "Enable X forwarding" in Connection->SSH->Tunnels
Then run any X app from the ssh commandline, and the relevant window will open.
Total length for playlist : 23 hrs 38 mins 38 secs.
Playlist Status : ERROR
Commented out rm $SUM_FILE_LENGTH in the test_sgh_playlist script, saw the file lengths in ~/tmp/sumplaylistlen.tmp found the ARMY DD to be the culprit, re-uploading. Put the rm $SUM_FILE_LENGTH back.
Thursday, September 21, 2006
Tuesday, September 19, 2006
says dreamweaver MX supports Hindi, and gives instructions on configuring
gives detailed info on what unicode encoding means and how to do web
development with unicode, including using dreamweaver. Read this page in its
entireity to understand the subject well.
links to MS keyboard layouts etc
links to Phonetic input software (transliteration) from Microsoft
(if you want to copy-paste from websites which use methods other than Unicode)
has a fonts package if you want some more fonts
( is a Unicode input tool. Not really required, unless you want to try its
transliteration capabilities - if any. includes detailed installation
(speech to text and text to speech products, just for fun)
Monday, September 18, 2006
Also, deinterlacing the video at the encoding stage may have been a good idea.
And, of course, the known problem of writing DVD volumes created with DVDStyler with Nero - it says VIDEO_TS.VOB not found... - probably related to the fact that DVDStyler does not allow you to put in a starting video. So, iso file is the only option. And that needs a filesystem which supports files > 4 GB...
Version DVDStyler-1.4_1-win32u.exe on WinXP with
Service packs etc installed.
Windows crashes repeatedly when the iso filesize
reaches/ crosses 4 GB.
Filesystem on which the iso was made was actually ext3,
mounted on Windows with the ext2 driver for Windows
(Finally rebooted into Linux, changed the xml file's
paths from Windows paths to Linux paths, successfully
made iso in the same volume.)
(Other windows utils like Virtualdub have no probs
making files > 4 GB on the same ext3 volume)
Friday, September 15, 2006
Wednesday, September 13, 2006
means starts with basic pay of 2000 which increases every month till the salary reaches 3000, and then increases at the rate of 400 per month till it reaches 4200 then increases by 800 per month... and so on. Of course, this set of numbers is totally fictitious.
Tuesday, September 12, 2006
Of course, there is an option to turn it upside down, as
point 19 says.
These produce files almost exactly the same size as with the current iSiloX utility (for plain text files), but are recognized by the older version of iSilo.
Monday, September 11, 2006
And today was productive in other areas -
1. go-ahead from KVR for changing our planetarium control system wiring, changing the computer signal injection from before the input multiplexer stage to after the output demultiplexer stage....
2. podcasting code tweaking for nearly 3 hours at a stretch till now.
Sunday, September 03, 2006
Only way out was to close firefox, or use konqueror instead on the remote machine.
Saturday, September 02, 2006
Making playlist, troubleshooting horns amp howling in Mandir (9.45 to 10.45, it was due to a bad amp) and then the gmail acc creations and config took all morning.
Thursday, August 31, 2006
Monday, August 28, 2006
and so on.
Thursday, August 24, 2006
Wednesday, August 23, 2006
Tuesday, August 22, 2006
Monday, August 21, 2006
And a review of website change-detection services... http://marshallk.com/a-review-of-web-site-change-detection-services
Perhaps a bit dated.
Tuesday, August 15, 2006
Wednesday, August 09, 2006
Monday, August 07, 2006
Blocked port 25 as they suggest for all NATed machines (could have viruses/spyware on them) and allowed only the legit mailserver to connect to port 25 on internal network. Checked it by using nmap with spoofed ip address of internal machine: nmap option -S
Sunday, August 06, 2006
Also some nifty near-real-time views of the Earth! http://taint.org/xplanet/
Saturday, August 05, 2006
So the problem was only in some places, as the comments on the post show.
Tuesday, August 01, 2006
Based on the shootout at The Desk Top Video Handbook On Line ver 14.0 and Video Capture Card Round-Up VIII March 2004 update (now supplanted by Video Capture Card Round-Up March 2005 update) which he sent me, here's my recommendation.
First, check if the system has USB2. For this, Open Device Manager and expand the Universal Serial Bus section. There should be an "Enhanced" USB host controller present.
In case you want to try DV also, note the Hard disk's number from Device Manager - google will tell whether it is 7200 rpm or not.
Plextor ConvertX PX-M402U $149.95 would be good if the system is a P4 or faster than 1 GHz and has USB2. But availability in India is doubtful.
Pinnacle MovieBox USB 9 $188.00 is known to be available and is a good product for writing VCD/DVD.
Pinnacle Studio Deluxe 9 $188.00 is a better buy if the hard disk is 7200 rpm - can be used for DV also along with analog.
screen by itself starts a new screen terminal
Within screen, ctrl-a is the prefix for commands to screen.
So, Ctrl-a d to detach the screen
screen -x to re-attach to detached screen - it prompts you if more than one screen instance is running.
Ctrl-a c to create a new screen terminal
Ctrl-a w to list all screen terminals (on the title bar)
Ctrl-a 2 to go to the second terminal on screen
Ctrl-a n to go to the nth terminal on screen
Simple Ctrl-d (or exit) will log out of a screen terminal, or in case it is the only screen terminal, screen exits.
Monday, July 31, 2006
checking out http://www.linuxquestions.org/linux/answers/Applications_GUI_Multimedia/Using_the_screen_package and http://www.redbrick.dcu.ie/help/tutorials/screen/
Sunday, July 30, 2006
Saturday, July 29, 2006
Friday, July 28, 2006
Thursday, July 27, 2006
1. Installed Mandrake 10 for max compatibility, ease of porting apps from desktop. Also make user sgh.
2. Installed apache2, mod-php, php-mysql, php-pgsql, phppgadmin
3. Had to make the sgh user and db. Struggled a bit, finally saw the README.mdk in /usr/share/doc/postgresql-server-7.4.1/ -
After you installed the packages, here is the procedure toThis will fail, saying FATAL sgh database does not exist. You have do do an extra step before step 6 - run
start quickly but nicely.
1- Become root user on your machine. (su)
2- Become postgres user. (su postgres)
3- Create a user (createuser)
4- Be sure that the postmaster is running (service postgresql status)
5- Logout from the postgres and the root account.
6- Test it. (psql -U [username])
createdbas user sgh.
Directly trying to run phppgadmin fails. This is because the default install of postgres will not allow connects on port 5432 - it allows only connects with the local UNIX sockets. So, psql will work, phppgadmin will not, till you modify the pg_hba.conf in /var/lib/pgsql/ -
# TYPE DATABASE USER IP-ADDRESS IP-MASK METHODand also pg_hba.conf says,
local all all ident sameuser
host all all 127.0.0.1 255.255.255.255 trust
#Also, remember TCP/IP connections are only enabled
# if you enable "tcpip_socket" in postgresql.conf
So, accordingly, changed false to true: tcpip_socket = true in postgresql.conf and did
service postgresql restartVoila! netstat -a shows
tcp 0 0 *:postgres *:* LISTEN
Now phppgadmin works. Agreed that this is not suitable for multi-user systems... (the trust all users part). Changing to md5 instead of trust, restarted postgresql, instantly stopped stuff from working. Problem was that the password had not been set. Easiest way - first enable the trust connection, then in phppgadmin, User Admin in the system tables - edit the sgh user, add the appropriate password, and now the md5 authentication works. Otherwise, while creating the user, createuser -P will prompt for the new user's password.
OK, how about inserting the existing database from the database dump? For a refresher, the commands were
pg_dump sgh > sghdbdump.txtBut it gave an error,
psql -d sgh -f sghdbdump.txt
language "plpgsql" does not exist
HINT: You need to use "createlang" to load the language into the database.
And createlang plpgsql says
createlang: language installation failed: ERROR: could not access file "$libdir/plpgsql": No such file or directory. Checking out locate plpgsql and whereis plpgsql did not find it. So, will consult PB and Google on installing it.
Monday, July 24, 2006
Saturday, July 22, 2006
Friday, July 21, 2006
2. Blogspot.com domain was blocked by Govt of India! Actually by lazy ISPs. And now back again. Wrote to our Prez about it in the heat of the moment.
3. Finally posted on pcq forum about the "CPU util" in their HDD banchmarking.
4. Planetarium system down! "Home in progress" doesn't go off. Troubleshooting, checking out the "ATM CLR" signal.
5. DMACS conference - and had to redraft a poster paper (in fact two papers) since my name had been added as a co-author.
6. Edited the Malayalam in the Wikipedia post made by A - with the help of online transliteration by www.writeka.com .
Monday, July 17, 2006
Monday, July 10, 2006
2. Interesting use for the "scientific filter" in SoundForge - 15,500 Hz noise due to interference from CC TVs in Mandir in live recordings easily removed - 15500 to 16500 band stop applied - 4th order or something. Another surprising use was to cut 5 kHz to 16 kHz in one of the Africa interviews. The noise vanished, leaving the voices surprisingly untouched. Sibilants are present above 16k also, and the rest are below 5k...
Thursday, July 06, 2006
Yesterday, found the Premiere sound problem (no sound output when playing Matrox AV files in RT2000 system DVEDIT) was due to my forgetfulness while installing - needed to connect a cable from the RT2000 card to sound card's aux input - or use the break-out box's RCA connectors.
Wednesday, July 05, 2006
Sunday, July 02, 2006
Saturday, July 01, 2006
Pinging from a NATed machine gets a reply only from the gateway. Pinging from the machine with x.y.z.n address gets replies from all machines in subnet - other than windows machines, of course, which don't respond to broadcast pings.
Friday, June 30, 2006
1. The old Satellite Pro's floppy drive seems to have given up the ghost. So, I can't rely on typing on that and carrying stuff across on a floppy.
2. Some notes on noise reduction and an interesting result in one case.
For some interviews recorded in the field (in Africa) noise reduction was desirable in some cases. Cool Edit Pro, 69%, followed by noise gate in SoundForge at a threshold just enough to cut off the residual noise. Followed by RMS normalization, of course. In some cases, noise reduction not desirable, as when the background noise is either not constant, or very low, or as in one case, the background noise is very loud, being recorded while travelling in a van. In this case, the noise acts as a sort of prop for the voices - gives the feel of being on location.
Wednesday, June 21, 2006
First, the MPEG2 export only from the Matrox - not recognized by anything other than Sonic DVDit, I think.
Next - the Matrox DV avi export. Fast, and cuts file into 2 GB chunks, useful if using FAT32 drives. Recognized as DV avi by most sw, but the audio is a separate wav file which most sw will need prompting to find. For eg., in Nerovision Express, the audio has to be separately dragged and dropped in the video edit timeline. In Virtualdub, Audio menu, Use wav audio.
MS DV avi export from dvedit seems to be not useful - takes 4x realtime, and probably reencodes.
Tuesday, June 20, 2006
Monday, June 19, 2006
(host not 192.168.2.6) and (host not our-melb-ipaddress )since a sftp session was in progress.
Display filter would be
ip.addr ne 192.168.2.6and so on.
Nothing suspicious. Only NTP, multicast router solicitation and antivirus updates.
Linuxjournal has a nice guided tour of ethereal.
Wednesday, June 14, 2006
After reinstall, the stop error and restart problem which I'd posted on PCQ forum is solved - so it was purely a software problem, as suspected. And of course Windows problems are best solved by reinstalls!
Installed WinK SP4 from PCQ Oct 2004 DVD, then Matrox video tools after the display driver.
Tuesday, June 13, 2006
Saturday, June 10, 2006
support for SSH2 and SSL with the following basic features:
- Runs as a NT Service (not with ServAny--not as stable)
- work with standard FTP clients
- require a secure connection
- bandwidth throttling per user and per server
- event handling (monitoring for DoS attacks or other suspicious
- DB user account support
- Lightweight with high perf
- Programmable interfaces in case sites want to automate
- 1/2 domain, 10 account support to start with
Commercial servers are >$200
A list of FTP servers is on
Sourceforge gave some more:
A good example is http://sourceforge.net/projects/wzdftpd
But will probably use SrvAny to run as a service. zFTPServer Suite also looks good....
Filezilla server looks good, too. Not much documentation on the site, but trying it
out, it has
A Brute force banning script is at
Monday, June 05, 2006
This has the printf part only if bc is called. Else, sometimes printf gives errors like
MINUTES=`echo "scale=1; ($MINUTES/15)" | bc -l`
MINUTES=$(printf "%2.0f" $MINUTES)
MINUTES=`echo "scale=0; ($MINUTES*15)" | bc -l`
MINUTES=$(printf "%02d" $MINUTES)
if [ "$MINUTES" = "60" ]
HOURS=`echo "scale=0; ($HOURS+1)" | bc -l`
HOURS=$(printf "%02d" $HOURS)
if [ "$HOURS" = "24" ]
printf: 08: invalid number
Saturday, June 03, 2006
Set up dialling out from the router similar to the BSNL DATAONE ADSL HOWTO
Except that the layout was different. Had to add a NEW PVC-7 - change its VPI/VCI:->0/35 after first changing PVC-0's value which was earlier 0/35 and hence causing a conflict. Most important - SAVE ALL button at the bottom did the rebooting of router. Maybe I'll put in screenshots later. And I'll need to help them with port forwarding for one of the machines to use Bittorrent.
Friday, June 02, 2006
Got a google analytics invite. Thought I'd add it to this site, but www.radiosai.org has priority.
Wednesday, May 31, 2006
But putting the same settings in SF doesn't give the same results - the waveform is more flattened, and sounds more squashed, too. Preliminary tweaking with attack and release times didn't help. SF version is pretty old - 4.5. For that matter, the Cool Edit Pro 1.1 is old too - latest is Adobe Audition 2.
Then I'd to go into the update.php and index.php and remove the hardcoded paths to rrdtool - probably added by us on the old krishna. Once that was done, working fine.
Tuesday, May 30, 2006
MINUTES=`echo "scale=1; ($MINUTES/15)" | bc -l`
MINUTES=$(printf "%2.0f" $MINUTES)
MINUTES=`echo "scale=0; ($MINUTES*15)" | bc -l`
if [ "$MINUTES" = "60" ]
HOURS=`echo "scale=0; ($HOURS+1)" | bc -l`
if [ "$HOURS" = "24" ]
MINUTES=$(printf "%02d" $MINUTES)
HOURS=$(printf "%02d" $HOURS)
#this gets them the leading zeros
Earlier code was
MINUTES=`printf %02d $(echo "scale=0; ($MINUTES/5)*5" | bc -l)`
This only rounds DOWN to the nearest multiple of 5.
Never rounds up correctly.
(Edit for the leading zeros code: 1st June)
Monday, May 29, 2006
It took nearly 4 hours to debug the http HEAD in php to get the filesizes - the library from http://lwest.free.fr/doc/php/lib/net_http_client-en.html
had a bug in that the HEAD function was also calling a ProcessBody function: since the HEAD did not return a body, the ProcessBody was waiting till the socket timed out or something like that, 150 seconds for each successful call! Also, the Debug variable needed some tweaking.
Later, the xml had a few bugs to iron out - <itunes:category> had to be one of the pre-defined ones, guid couldn't be repeated, publish date was not RFC 822 compliant, had to do string replace for space characters to %20...
Friday, May 26, 2006
Saturday, May 20, 2006
Workaround: Escape codes are given in places like this - http://www.dragonwinds.com/resources/html-codes.shtml are not enough - they are meant for the HTML.
has a discussion on it and says that you need to recompile squid for it to work with underscores.
Found lots of hostname not found errors in /var/log/maillog
host -t MX gmail.com was not returning anything, while
host -A MX gmail.com was working.
cat /etc/resolve.conf gave
So the ADSL router was specifically blocking -t MX! Added a working dns server, BSNL's nameserver 126.96.36.199, after checking
host -t MX gmail.com 188.8.131.52 was working fine.
After /sbin/service network restart
when I did
I again found it had gone back to
Found this by googling 'resolv.conf updated from network restart':
When you are connecting to a network that's using a DHCP-server, it's possible
that the settings you have placed in /etc/resolv.conf are overwritten
everytime you receive a DHCP-lease. You can prevent this by adding the
following line to /etc/sysconfig/network-scripts/ifcfg-eth0
So I added that, then did
/sbin/service network restart
Then cat /etc/resolv.conf gave
host -t MX gmail.com gave
gmail.com mail is handled by 10 alt1.gmail-smtp-in.l.google.com.
gmail.com mail is handled by 10 alt2.gmail-smtp-in.l.google.com.
gmail.com mail is handled by 50 gsmtp163.google.com.
gmail.com mail is handled by 50 gsmtp183.google.com.
gmail.com mail is handled by 5 gmail-smtp-in.l.google.com.
So now seems good. And I got a test mail too.
Friday, May 19, 2006
Thursday, May 18, 2006
Fix - change the comparison code... TBD
2. If previous day's playlist has an item at exactly $CHANGE_OVER_TIME , schedule generation php page will complain "SIGNATURE TUNE NOT FOUND"
Fix - manually change the time of the offending item by one second...
3. Sarva dharma bhajan handling - schedule shows two listings, one with zero duration, esp for Prasanthi Mandir bhajans.
Fix - ??
Wednesday, May 17, 2006
lspcidrake -v | fgrep AUDIO for which driver is used by default:
it was i810_audio
changed to that driver.
found aumix was not installed. Installed it.
Found alsa was not running in runlevel 5. Made it run in drakconf 'Services'.
Restarted machine, opened kmix, made sure sound not muted and put to 50% volume, working fine.
1. Touchpad needs clicking on the buttons for left and double click - click and double-click on the touchpad itself doesn't work.
2. No sound.
3. No battery meter, other power control stuff.
LAN works, Wireless LAN and WinModem may not, but I'm currently not using them.
Tuesday, May 16, 2006
Monday, May 15, 2006
Using a free domain from changeip.com, wrote a one line script to do the dns updates:
Using http didn't work - it was being set to the ISP's proxy IP. Thankfully https worked. Put it in the cron to run hourly.
Thursday, May 11, 2006
Tuesday, May 09, 2006
On boot in Linux, "check forced" "try manual fsck" at some point, and it was taking a looooong time - thought it hung. So, booted with Mandrake CD1, "rescue" at boot prompt, got a shell, mounted the root partition, edited /etc/fstab to comment out mounting /dev/hda1, deleted the corrupted files, booted normally. Then man fsck, gave
fsck -t ext3 /dev/hda1
The filesytem still had errors.
Corrected the errors when it asked, finished in around 15 minutes or less. Phew!
Have to think of how much to automate - asp pages being generated by php querying our local database - how much to leave manual...
Monday, May 08, 2006
http://www.dead-links.com/ was using HTTP HEAD , so was getting FORBIDDEN responses for most of our htm pages - issue with IIS not giving 200 response for anything other than .asp or .html or something like that....
had the same problem.
JCheckLinks - I couldn't get it to work due to my lack of Java app installing experience.
Linklint - appeared too complex!
http://www.unixdaemon.net/delicious_checker.html - meant for Del.icio.us links specifically, and needs certain PERL modules....
Finally ended up using Xenu's Link Sleuth - relatively fast and uncluttered, on Windows (Sathya). Of course, radiosai.org has more broken links in PA and Journals which I have no intention to correct now, so have to choose preferences carefully...
$cached[$messageid]["subject"] = $message["subject"];
if($cached[$messageid]["subject"]== "(no subject)")
$system_date_now = date("dS F Y");
$cached[$messageid]["subject"] = "Sai Inspires - " .
$system_date_now ." from Prashanti Nilayam";
Now, though the mail is created and sent as "no subject", the users get the mail with subject Sai Inspires - 04th May 2006 from Prashanti Nilayam and so on.
Update on Date: 21/05/2006 8:38 am:
Changed the date placeholder in subject and message ( in file
Replaced the function date("dS F Y") with date("jS F Y")
d Day of the month, 2 digits with leading zeros01 to 31
jDay of the month without leading zeros1 to 31
Replaced the format output from
Sai Inspires - 07th May 2006 from Prashanti Nilayam
Sai Inspires - 7th May 2006 from Prashanti Nilayam
To check the error messages in cron piped the message to log.txt
31 17 * * * /home/apachemails/phplist -pprocessqueue > log.txt
Got the following message:
[apachemails@krishna ~]$ cat log.txt
PHPlist version 2.10.2 (c) 2000-2006 Tincan Ltd, http://www.phplist.com
Error: USER environment variable is not defined, cannot do access check.
Please make sure USER is defined.
>From google got the following solution:
This happens because when a crontab executes, the *$USER* variable is not
set. We must set it in our script. So open up the phplist file and add the
The entire file should now look like this:
/path/to/php /home/yourusername/path/to/phplist/admin/index.php $*
Note that you also must set the *$commandline_users* variable in your *
$commandline_users = array("yourusername");
With all of that in place, you can automate your queue and bounce processing
with a crontab like this (adjust your paths accordingly):
# Suppress crontab emails
# Process phplist queue daily, every half hour
0,30 * * * * /home/yourusername/phplist -pprocessqueue
# Process phplist bounces once a day, 5am
0 5 * * * /home/yourusername/phplist -pprocessbounces
In our case:
now the cron works fine :)
Wednesday, May 03, 2006
Friday, April 07, 2006
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Saturday, April 01, 2006
Schedule is: get up at 5, bathe wash etc till 6, then either read or write or grab 40 winks and eat an apple for breakfast till 6.30. Then in Mandir till 9.45-10. Similarly in the evenings 2.30 to 6. Because KVR is out of station and I'm moral support for KBR managing the PA.
The heat is exhausting. Getting just 3 hours at SSSST to do all the day's Radio Sai work is very limiting, too.
The most recent new development is the Acer Laptop - Travelmate 2420 series, Widescreen 14 inch TFT, Celeron 1.5 GHz with 512 MB RAM and 40 GB HDD. Using it to record stuff in Mandir, recording onto the portable 2.5 inch external USB HDD using the Extigy as source.
The other development was the spending of several hours with PB setting up PhpList for their Sai Inspires emails. Quite involved. And does not really behave linearly during testing. Bounce testing etc was quite chancy and frustrating - works sometimes and not sometimes. Posted some of the observed behaviour on Phplist forum too. Hopefully in real world conditions it will work properly... Since they want to send very fancy emails with photos embedded, each of their messages is made as a separate template in PhpList.
Saturday, March 25, 2006
If it was just ignoring the jpgs it would have been OK, but it actually bounces, with "post failed". Of course, the text-only option is available with phplist...
Loving Sairam from the Heart2Heart Team.
How important is gratitude? You will know that when you read Swami's message today.
Sai Inspires - 25th March 2006
| || |
Always be grateful, even for a small help. Do not be ungrateful; ingratitude is utter cruelty. Any help received should be reciprocated to the extent possible. Hurting someone who has helped you will result in your losing your eyesight. It is only through the radiance of the sun that you see things, and the sun withdraws its radiance from those who commit the sin of ingratitude. This is the suffering that an ungrateful person has to undergo. Therefore, we should always be grateful and return help for help, to the utmost extent possible.
- Divine Discourse, 6th May 2002.
First and foremost, you should show gratitude to your parents, love them and respect them. - Baba
Tuesday, March 21, 2006
Recently I had the need to print some stuff with a dot matrix printer (TVS MSP 345) which happens to be "Epson compatible". I wanted to print with the built-in fonts, which are clearer and also print faster. So, I first prepared my pages with a text editor (kwrite) with proper formatting and then applied the extra binary formatting with a hex editor (khexedit). This basically consisted of adding the required control codes (like compressed mode, emphasise text, etc) at the relevant places.
1. The printer took 8 spaces for tabs, had to adjust the text editor accordingly.
2. I'd set the default printer to a "Raw/No driver" printer driver in cups. Probably this is not necessary.
3. My print command was cat filename.txt > /dev/lp0 - I had to do this as root, there may be better ways to do this.
4. Epson codes were obtained after googling, from http://webpages.charter.net/dperr/links/esc_p83.htm
A note about these codes is that you need to send the ESC character for some of them, and not for others. For example, for form feed you just need to send 0c (HEX) while for select condensed mode you need to send 1b 0f (HEX).
Probably some sort of review of such things will be useful for folks. Save them from wasing time and money. Just in case they really work also!
Edit: removed the links since they are "undesirable neighbourhoods" and may cause Google adsense to boycott me!
Sunday, March 19, 2006
virtual.domain anything (right-hand content does not matter)
firstname.lastname@example.org address2, address3
And with the configuration accepting local mails, it was creating some sort of problem with local addresses lookup. So, commented out the
mydestination = $myhostname, localhost.$mydomain, localhostline. It still accepts mails from localhost for local accounts. Then added the actual hostname to the virtual domains, with stuff like mails to apache etc being sent to me!
Saturday, March 18, 2006
tail -f /var/log/mail/errors
One more mystery solved was why nmap was showing port 25 as closed - postfix was listening only on the loopback interface - localhost.
inet_interfaces = allsolved that.
First I thought just copying the main.cf from the older server was the reason. But even replacing it with the main.cf.dist with appropriate modifications didn't solve the problem.
The first one was
fatal: connect #11 to subsystem private/proxymap: Connection refused
and the other, later, was
fatal: connect #11 to subsystem private/scache: Connection refused
Deleting the proxymap socket (present in /var/spool/postfix/private ) only changed the error to file not found.
mksock gave file not found - the mksock util was not in the system at least with that name...
proxy_read_maps = $local_recipient_maps
local_recipient_maps = unix:passwd.byname
removed the first error and gave the second one. This one was finally removed by later adding
smtp_connection_cache_on_demand = noOne more thing I'd overlooked was the differing postfix versions needing different commands to update the alias database and the virtual database. This is actually mentioned in the small text at the bottom of the linuxquestions link in small print. Anyway, for the record, they are
Friday, March 17, 2006
Thursday, March 16, 2006
Tuesday, March 14, 2006
Monday, March 13, 2006
2. Open the video in gmplayer, pause at appropriate place(s), take snapshot(s) with ksnapshot, attach in mail and send to Prof G for him to update, including the mms://urlofvideo.wmv
- VideoCD source grab to hard disk as .mpg file using VCDGear
- MiniDV cappture to hard disk, now firewire is available, so Premiere can be used.
- Composite RCA connector capture also possible with VirtualDub.
2. Add www.radiosai.org logo with VirtualDub
- Use the resize filter with Bicubic option to get final size 320x240 with cropping as desired
- Use the logo filter for the watermark, with WHITE.BMP as the logo image and "Use alpha channel from another image", logoMASK.bmp
- Use Video->Compression Huffyuv codec before saving avi.
3. Use the saved profile 350_100_20 with Windows Media Encoder to convert avi to wmv - DO NOT overwrite this file! Choose CANCEL if it asks if you want to save this file at the end!
4. Edit the saved append.bat files appropriately and add begin and end segments to the video using wmvappend.exe.
In case adding the 350_100_20 begin and end files crashes, use separate files for 350, 100 and 20 kbs as given in next step. Ensure profiles match for files being appended!
5. Split the multi-audience file into separate 350, 100 and 20 kbs files using Windows Media Stream Editor.
6. Add appropriate metadata with Windows Media File Editor, in the same format as previous files.
Sunday, March 12, 2006
Saturday, March 11, 2006
1. Choose encoding speed ESS in the bottom drop down in the first page
2. In the page after choosing the specific chain to encode,
(a) Adjust cropping if required using AutoSet on a frame which has no dark parts near the edges
(b) Check "include subpictures" and choose appropriate language for subtitles
(c) If required, crop the end credits by scrolling to the end of the part and clicking "Set credits start"
3. Use auto detect in the next page to choose the proper interlacing settings
4. In the final page,
(a) Check "Two pass" - better quality
(b) Move the Encoding speed slider 75% to the right for quality
(c) Choose size as 175 MB if you have 24 parts - 175 x 24 = 4200, enough space to spare for small extras etc
This is equivalent to approx 700 kBitsps which will be shown in brackets below.
(d) Choose the largest video resolution which is available after "Show only preferred resolutions" is checked.
(e) Defer processing (enqueue) if you want to run a batch job with many files.
(f) Defer even project processing if you want to run multiple projects as batch with iso files as sources for some of them.
Friday, March 10, 2006
RR's Windows machine has some problems with the "Routing and Remote Access" - it seems to automatically change from Red to Green, and when Red, says "Don't have permissions to access" even as admin - some misconfig or virus or what?
Also, the example firewall was not allowing outgoing connects from the proxy thru the external interface. In retrospect, probably I should've created a rule mentioning the external ip address, and allowing all outgoing. Just
So, doing the NATing for POP on the Linux proxy, adding to /etc/sysconfig/iptables
:OUTPUT ACCEPT [0:0]
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
-A POSTROUTING -s 192.168.x.z -o eth1 -j MASQUERADE
-A POSTROUTING -s 192.168.x.y -o eth1 -j MASQUERADE
echo "1" > /proc/sys/net/ipv4/ip_forward
Thursday, March 09, 2006
Update: Read the code, dude - found the simple solution there...
Wednesday, March 08, 2006
Notes on Seagate 7200.9/500GB drive P/Ns with SSC disabled - (from a drive db report)
" In the course of researching a hard drive purchase, I got the following information from Seagate presales support:
"All Seagate 7200.9 SATA drives with the Part Numbers that end in the suffix -301 have SSC enabled and are not compatible with the Apple controllers. (as mentioned previously here - SSC (Spread Spectrum Clocking) is not compatible with the Mac onboard SATA. Seagate also has a PC/windows utility to disable this but not a Mac version of it.-Mike)
All other suffixes other than -301 on the Part Numbers are compatible ( -302, -303,-401, -402 etc).
Here is a list of part number with SSC disabled for ST3500641AS:
Tuesday, March 07, 2006
Monday, March 06, 2006
Sunday, March 05, 2006
seeing if krishna can be used for the sssihl mail forwarding...
Changes to main.cf:
1. #inet_interfaces = $myhostname, localhost
2. the changes as given in the wiki page above, ie.
2 virtual_alias_domains = example.com ...other hosted domains...
3 virtual_alias_maps = hash:/etc/postfix/virtual
6 email@example.com postmaster
7 firstname.lastname@example.org joe@somewhere
8 email@example.com jane@somewhere-else
9 # Uncomment entry below to implement a catch-all address
10 # @example.com jim@yet-another-site 11 ...virtual aliases for more domains...
3. Opening port 25 on krishna's firewall
Wednesday, March 01, 2006
<%= %> is shortcut for Response.Write
Default language is VBScript, tho JScript and even Python are supported....
Very useful set of VBScript built-in functions, esp for string processing and date processing.
Saturday, February 25, 2006
*********contributed by PB**********************
krishna.radiosai.org (REDHAT 9) to krishna.radiosai.org (MANDRIVA 2006)
Why the shift?
Required new versions of mysql and php to implement the mail list (Phplist) to work.
1. Upgrade the mysql and php on the old server.
This had upgrade problems on the old server
2. Configure a new server and forward the request to the page through url redirect.
This was best if the directed url was a public ip.
3. Configure a new server and forward the request to the page through reverse proxy.
This had problems in installing mod_proxy_html on the old server. It rewrites HTML links into a proxy's address space i.e. href pointing to ./files would resolve to http://proxy_address/files.
4. Upgrade the server.
Finally choose to upgrade.
Got a system having the same hardware configuration as the old one (except the display and ethernet cards)Chose Mandriva 2006 DVD installation
Partitioned the drive (80GB Drive)
After partition, installation asks "You have the option to copy the contents of dvd to the hard drive before installation. It will then continue from the hard drive and the packages will remain available once the system is fully installed." (Check - copy the whole DVD checkbox)
After installation of required packages, added few other packages that were not in the DVD.
vsftpd-2.0.3-1mdk.i586.rpm (ftp server that supports virtual users) db3-utils-3.3.11-19mdk.i586.rpm (required for vsftpd password generation) libdb3.3-3.3.11-19mdk.i586.rpm (required for db3-utils)
mysql-administrator-1.1.6-linux-i386.tar.gz phplist-2.10.2 (Mailing list server) lame (required for automatic mp3 encoding) librrd (required for shoutstats)
Did a Mandriva update through the Mandriva Control Center (command: mcc)
Transferred required files from the old server
sgh, office, root, webroot
crontabs (root and sgh)
postfix configuration files (needed slight modificaiton to point correct installation path)
dump of database records from the old server
firewall iptables configuration files
vsftpd (copy all the required files) db3-utils was required here.
icecast server files
Configured the mysql databases through mysql-administration (/root/mysql-administration/bin/mysql-administration)
Restored the dump of database records from the old server.
Ran Nessus to check for security holes. Fixed the following:
ServerTokens Prod (/etc/httpd/conf/httpd.conf) uninstalled mailman
Changed the hardisk in the old server to the new one.
Configured the network.
Enabled ipv4 packet forwarding using the Mandrake Control Center (cmd: mcc) Network Sharing.
This enables ip masquerading. The file /proc/sys/net/ipv4/ip_forward should be set to 1 for this to happen.
Uninstalled shorewall (mandrake firewall)
Restarted network and iptables
Installed nmap and ethereal
Stopped/started services on boot (through Mandrake Control Center).
Present disk stats
|/||3.7 GB||3.2 GB|
|/var||9.2 GB||6.6 GB|
|/usr||9.2 GB||6.6 GB|
|/tmp||942 MB||878 MB|
|/home||50 GB||31 GB|
Things to do:
Phplist (already running) to be customized, fine tuned and tested.
Take backup of files ( towrite24kbps to cds)
Write scripts to show the disk stats and database backup
Check for updates monthly (security updates, bug fixes, normal updates)
Clear hardisk regularly (office/sgh)
Automate the start of icecast on boot.
Things to remember:
Icecast location - /usr/local/icecast/bin/icecastmysql-administration location - /root/mysql-administrator/bin/mysql-administrator (admin passwd is same as su) Download files location(rpms,tgz,source files) - /root/Download
*********contributed by PB**********************