Re: [Ilugc] [OT] [[Need help]] Few *nix questions

[Bala Kumar]

Hi,

--- On Tue, Feb 23, 2016 at 5:22 PM, sahil
 wrote:
| Thanks. I appreciate.
| But I lost the charm of asking questions at least on this forum.
>
> \--

Appreciate your interest and thanks for sharing those questions. Will help
if you can highlight your solution/effort taken to solve and be precise on
where you got stuck in the future.

---
|  Find all IP addresses between your server and www.google.com
\--

See also
> man traceroute

And a few things worthy to remember and to read and re-read is
http://www.catb.org/esr/faqs/hacker-howto.html . Recommend reading the
attitude part and on not getting into flame wars.

Cheers,
Bala
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

Re: [Ilugc] Is it time to say good bye?

[Bala Kumar]

Hi all,
Do we have any plans?  I wasn't able to make up to the monthly meet
today so if there are any migration plans that were discussed please share
on the list. We can pool in interested volunteers to phase it out may be.
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

Re: [Ilugc] Containers (Docker) Workshop in Chennai (9th Jan'16)

[Bala Kumar]

Registrations still open? I registered now and found it to be closed.
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

Re: [Ilugc] Monthly meet ILUG-C - Saturday, December 19, 2015, 1500 IST

[Bala Kumar]

Hi,

--- On Wed, Dec 23, 2015 at 1:48 PM, Shakthi Kannan 
wrote:
| We shall change the topic from "Project Euler" to something else in the
new year.
\--

Awesome, looking forward to it. Awaiting more volunteers to actively
participate and engage on the same.
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

Re: [Ilugc] Monthly meet ILUG-C - Saturday, December 19, 2015, 1500 IST

[Bala Kumar]

Members who were present today for the session here is the link to Kibana
instance which has our archive data.

Link: http://128.199.138.108:90
username: kibanauser
password: ilugc!@#4

(Tip to get started: After login click on last 15 minutes on top right
corner and change it to last 1 year)

For others to give some context - we were trying to get meaningful
information from our mailing list archives
http://www.ae.iitm.ac.in/pipermail/ilugc/. I came up with a solution to
parse these archives messages, push it to Elasticsearch and use Kibana for
analytics. I'll get back with github link once I finish required code
cleaning.

Looking forward to feedbacks and suggestions for improvement, quick hack so
bound to be not 100%.

Can we host this on our ILUGC domain? Just a Cron, Elasticsearch, Kibana,
Nginx makes up the stack.

Also I notice http://ilugc.in is suspended now, please contact the
billing/support department as soon as possible is the message on site.



On Sat, Dec 19, 2015 at 3:12 PM, Shakthi Kannan <shakthim...@gmail.com>
wrote:

> Hi,
>
> --- On Sat, Dec 19, 2015 at 3:00 PM, Bala Kumar <kidb...@gmail.com> wrote:
> | In case if they are not allowing inside at main gate. Show this email and
> | come. Got in just now after all hassle.
> \--
>
> What did you tell them? I just said I am going to Aerospace department.
>
> SK
>
> --
> Shakthi Kannan
> http://www.shakthimaan.com
> ___
> ILUGC Mailing List:
> http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
> ILUGC Mailing List Guidelines:
> http://ilugc.in/mailinglist-guidelines
>
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

Re: [Ilugc] Monthly meet ILUG-C - Saturday, December 19, 2015, 1500 IST

[Bala Kumar]

In case if they are not allowing inside at main gate. Show this email and
come. Got in just now after all hassle.
On Dec 17, 2015 5:01 PM, "Shakthi Kannan"  wrote:

> Hi Udaya Kumar,
>
> --- On Thu, Dec 17, 2015 at 3:14 PM, Udaya Kumar 
> wrote:
> | Talk 3
> |
> | Topic : Introduction to Perl
> |
> | Description : Basics of Perl language.
> |
> | Duration :30mins
> |
> | About Yourself :SW Eng.
> \--
>
> ACK. You can be the second speaker.
>
> SK
>
> --
> Shakthi Kannan
> http://www.shakthimaan.com
> ___
> ILUGC Mailing List:
> http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
> ILUGC Mailing List Guidelines:
> http://ilugc.in/mailinglist-guidelines
>
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

Re: [Ilugc] Monthly meet ILUG-C - Saturday, December 12, 2015

[Bala Kumar]

Can we have the meet on 19 Dec. I haven't checked clashes with other
events. Just a suggestion since I feel it will take this weekend off for
the people to settle from the floods and also many are involved in relief
volunteering efforts.
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

[Ilugc] Monthly meet ILUGC - Saturday, 21 November, 2015

[Bala Kumar]

Recently I was observing flooding pictures from the student activity center
- FB page.
https://www.facebook.com/pages/Student-Activity-Centre-IIT-Madras/422594197841530
.

Will help if insiders can give an update on the current situation and
confirm for Saturday's meet.
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

[Ilugc] Monthly meet ILUGC - 10th October

[Bala Kumar]

Can some one share last meet Euler problem. I remember it as a Permutation
problem but forgot to take notes then.
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

[Ilugc] MySQL leap second works ?

[Bala Kumar]

Hi everyone,
  During the Monthly Meet - Aug 8-2015 - I raised an open question
regarding leap
seconds and how are they handled in DB's. Everyone had our opinions and
most of the
attendees suggested it is taken care by the OS.

Interestingly looks like Leap second is handled by DB as well because of
the usage of
*now()* function. Found this link interesting
https://dev.mysql.com/doc/refman/5.5/en/time-zone-leap-seconds.html.

In recent versions of MySQL leap second 59:60 is reverted to 59:59 and
because of this
decrement there can be ambiguities in our where queries. For accurate query
results MySQL
suggests using *UNIX_TIMESTAMP(timestamp_column).*

Eg:
  = mysql SELECT a, ts, UNIX_TIMESTAMP(ts) FROM t1;
  +--+-++
  | a | ts | UNIX_TIMESTAMP(ts) |
  +--+-++ |
  | 1 | 2008-12-31 23:59:59 |1230767999 |
  | 2 | 2008-12-31 23:59:59 |1230768000 |
  +--+-++
  2 rows in set (0.00 sec)

  Querying for the leap second -
  = SELECT * FROM t1 WHERE ts = '2008-12-31 23:59:60';*
 Empty set, 2 warnings (0.00 sec)
 Returns empty set, because it is stored as 23:59:59 as shown in first
query.

  Using UNIX_TIMESTAMP in the condition we get -
  = mysql *SELECT * FROM t1 WHERE UNIX_TIMESTAMP(ts) = 1230768000;
+--+-+
| a| ts  |
+--+-+
|2 | 2008-12-31 23:59:59 |
+--+-+
1 row in set (0.00 sec)

  Interesting part is that for 59:59 we get only one result and not the
expected two rows.
  = mysql *SELECT * FROM t1 WHERE ts = '2008-12-31 23:59:59';*
+--+-+
| a| ts  |
+--+-+
|1 | 2008-12-31 23:59:59 |
+--+-+
1 row in set (0.00 sec)

I Took this Leap Second example from MySQL doc and when I tried it on my
machine, this leap
second behaviour was not working - very recently someone have commented the
same in the doc.
Please let me know if the example actually works for anyone else ?

Also http://www.postgresql.org/docs/9.1/static/functions-datetime.html says
PostgreSQL uses UT1 because leap seconds are not handled. Interested to
know if there
are any such MySQL like decrements for leap seconds in PostgreSQL too.

Thanks,
Bala.
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

[Ilugc] QA from Monthly Meet - Aug 8-2015

[Bala Kumar]

Hi everyone,
  During the meet - I raised an open question regarding leap
seconds and how
are they handled in DB's. Everyone had our opinions and most of the
attendees
suggested it is taken care by the OS.

Looks like Leap second is handled by DB as well because of the usage
of *now()* function. Found this link interesting
 https://dev.mysql.com/doc/refman/5.5/en/time-zone-leap-seconds.html.

In recent versions of MySQL - leap second 59:60 is reverted to 59:59 and
because
of this decrement there can be ambiguities in our where queries. For
accurate
query results MySQL suggest using *UNIX_TIMESTAMP(timestamp_column).*

Have discussed queries in this shared document:
https://docs.google.com/document/d/16CNBxIQGMbVoSgbg297h7b8rdr8huirTeb7XVt3PGAM/edit

Leap Second example in the Shared link is from MySQL doc and when I tried
it on my
machine, I found it not working - very recently someone have commented the
same in their official doc - let me know if the example actually works.

 PS: http://www.postgresql.org/docs/9.1/static/functions-datetime.html says
   PostgreSQL uses UT1 because leap seconds are not handled. Also
Interested
to know if there are any such MySQL like decrements for leap
seconds in
PostgreSQL too.

Thanks,
Bala.
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
ILUGC Mailing List Guidelines:
http://ilugc.in/mailinglist-guidelines

[Ilugc] Headphones not working in ubuntu Natty .

[Bala Kumar]

Hi,
  I use Intel dg33fb desktop board and the default audio codec installed
is :* Realtek alc888* . I also followed the instructions given here
https://help.ubuntu.com/community/HdaIntelSoundHowto and made changes to
the */etc/modprobe.d/alsa-base.conf* file and added the line *options
snd-hda-intel model=3stack-6ch-intel . *I also verified 3stack-6ch-intel
is the model name for dg33* boards here :
http://www.kernel.org/doc/Documentation/sound/alsa/HD-Audio-Models.txt but
still the headphones don't work.

 When I open alsamixer in terminal , the headphone column alone is
disabled( greyed) .

 Any idea on the fix ?


Regards,
Bala Kumar.
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc

[Ilugc] Reduce volume on System sounds ??

[Bala Kumar]

Hi,
  How to reduce the volume for system sounds like the default play of a
song when a mouse cursor is over a mp3 file, ubuntu startup sound etc ?
Tried reducing the sound level with the slider in system-- prefences--
sound but on doing it that way the sound level for the music players like
RhythmBox and movieplayer goes down ! So is there a way to reduce the System
sounds alone ?

  I am using ubuntu 10.10

Regards
Bala.
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc

Re: [Ilugc] [COMMERCIAL] Weekend training program on Core

[Bala Kumar]

This is a cool idea but can you change the day to Sunday since most of the
colleges work on Saturday and impose strict attendance for a working day
that falls on Saturday !
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc

[Ilugc] Headphones not working in ubuntu

[Bala Kumar]

Hi,
 My headphones don't work and if I open Alsamixer the headphone
slider is at 0 and cannot be increased. Someone help me to enable my
headphone please, the configuration in displayed below

*-multimedia
   description: Audio device
   product: 82801I (ICH9 Family) HD Audio Controller
   vendor: Intel Corporation
   physical id: 1b
   bus info: p...@:00:1b.0
   version: 02
   width: 64 bits
   clock: 33MHz
   capabilities: bus_master cap_list
   configuration: driver=HDA Intel latency=0
   resources: irq:48 memory:e322-e3223fff
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc

[Ilugc] Headphones not working in ubuntu

[Bala Kumar]

I had this problem of my headphones not working in *ubuntu 10.04* and now in
*10.10* too. My motherboard is a Intel DG33FB and I have already checked
many forums and have followed all ideas that they gave in vain (many of
these forums came up with snd_hda_intel to be added in /proc/asound/version)
. And this seems to be a unique problem with the particular board alone, 3
of my friends using the same board also have similar problems. I Was waiting
a long time so that they fix the bug in ubuntu 10.10 atleast but not yet and
I have finally moved to fedora where it works :)
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc

Re: [Ilugc] Headphones not working in ubuntu

[Bala Kumar]

My sound card is
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
Controller (rev 02)
___
ILUGC Mailing List:
http://www.ae.iitm.ac.in/mailman/listinfo/ilugc