gmane.linux.region.israel

Re: Two job proposals: Linux developer and Linux tech-support

Oron Peled — 2013-05-20T20:19:48

Hi,

On Monday 20 May 2013 21:43:20 Jonathan Ben Avraham wrote:

Sorry about the mistake, it should have been "jobs< at >..."
rather than "job< at >..." (plural).

However, they've just setup new mail alias, so now both addresses can be used.

Thanks,

Re: Two job proposals: Linux developer and Linux tech-support

Jonathan Ben Avraham — 2013-05-20T18:43:20

Looks like

<job-V54PEWLSr/o+JF/nGntIXQ< at >public.gmane.org>: host yaad.org.il[50.22.11.22] said: 550 No Such User 
Here"
     (in reply to RCPT TO command)



On Mon, 20 May 2013, Oron Peled wrote:


--
 9590 8E58 D30D 1660 C349 673D B205 4FC4 B8F5 B7F9  ~. .~  Jonathan Ben-Avraham
=}-----------------------------------------------ooO--U--Ooo--------------------{=
  yba-NswTu9S1W3P6gbPvEgmw2w< at >public.gmane.org - tel:+972.52.486.3386 - Skype:benavrhm - http://www.tkos.co.il_______________________________________________
Linux-il mailing list
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http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il

Two job proposals: Linux developer and Linux tech-support

Oron Peled — 2013-05-20T18:35:03

Hi,

This is on behalf of someone that isn't subscribed to this mailing-list.
Please direct all questions/applications to job-V54PEWLSr/o+JF/nGntIXQ< at >public.gmane.org directly and
not me.

----cut-here-----cut-here-------------------------------------

A company in the Galilee (Misgav/Carmiel) is seeking energetic applicants
with Linux and Android experience for the following two positions:

1. Application developer for Linux, Android and web technologies.
2. Tech-support for Linux based communication systems.

Please send CV with details about your experience on the relevant domains.
Proven track record in FOSS projects is an advantage.

----cut-here-----cut-here-------------------------------------

Bye,

Re: help with conserver

Tzafrir Cohen — 2013-05-20T06:29:53


'screen /dev/ttyS0 115200' on the remote side? (ttyS0? ttyUSB0?
serial/by-id/whatever?)

RTFM screen to make it detach on startup, add logging and whatever.

Re: help with conserver

Ido Admon — 2013-05-20T05:27:35


It was a peachy Monday, May 20 2013, 07:52:21 when shimi
<linux-il-kt5DkcmLVsdeoWH0uzbU5w< at >public.gmane.org> wrote:


oh just doing everything in the most convoluted way possible :) the
idea was to have a shell session that's always on, so to speak, but i
guess nohup can help with that somewhat. you're right, of course, in
saying that being dependent on the network makes the whole idea
pointless. thanks for clarifying things for me!

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Re: help with conserver

shimi — 2013-05-20T04:52:21



Truth to be told, I really did wonder how this is supposed to work (I never
used conserver; What you're trying to do is typically done in the IT world
by devices like this:
http://www.perle.com/products/IOLAN-DS-Terminal-Server.shtml ... usually
with 16 ports and beyond...) - but I assumed you researched this and found
that it's supposed work :)

I have to wonder, what is so special on the serial console that you want to
specifically use it? I mean, if you have to go over IP anyways, what does
it matter if it's 'serial' or not? The usual advantage of serial (IMHO) is
being out-of-band and not dependent on the machine's networking
configuration, which is not the case here, obviously. The other is maybe
the output of kernel messages (but that goes into files, or even to remote
machines if set up correctly).

Maybe you don't want the SSH encryption overhead? You could run telnetd
instead... or conserver can be used with 'exec' instead of 'device' if you
want the parallel connections feature.

So, what is the

Re: help with conserver

Ido Admon — 2013-05-20T04:25:12


It was a peachy Monday, May 20 2013, 00:14:42 when Ido Admon
<idoadm-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> wrote:


ok, i'm an idiot. of course /dev/ttyS0 is not the console itself but the
serial device. that's not going to work. but /dev/console doesn't work
either, and it seems that conserver can't actually do what i want,
which is to access the local console, not some other server connected
via the serial port. i'm not sure how, if at all, it can be done.

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Re: help with conserver

Ido Admon — 2013-05-20T04:14:42


It was a peachy Monday, May 20 2013, 06:02:58 when shimi
<linux-il-kt5DkcmLVsdeoWH0uzbU5w< at >public.gmane.org> wrote:



hi shimi, thanks. yes, i'm sorry if i wasn't clear enough. the console
is working flawlessly when physically connected. here's my conserver.cf
(192.168.43.168 is my laptop):

root< at >krzysztof:~# cat /etc/conserver/conserver.cf
# The character '&' in logfile names are substituted with the console
# name.
#
config * {
}

default * {
        logfile /var/log/conserver/&.log;
        timestamp "";
        rw *;
}

console serial {
        master localhost;
        type device;
device /dev/ttyS0;
        baud 19200;
        parity none;
}

access * {
        trusted 192.168.43.168;
        trusted 127.0.0.1;
}



and the relevant line in inittab:

root< at >krzysztof:~# grep ttyS0 /etc/inittab 
T0:23:respawn:/sbin/getty -L ttyS0 19200 vt100

and what setserial says:

root< at >krzysztof:~# setserial /dev/ttyS0
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4


thanks again!
ido

_____________________________

Re: help with conserver

shimi — 2013-05-20T03:02:58


But is the console actually 'listening' ?

I mean, do you have [a]getty running and everything? (see
http://www.cyberciti.biz/faq/howto-setup-serial-console-on-debian-linux/)

I would assume that it is, because from your wording, I understand that
sometimes you do use the physical serial connection with success... but I
have to ask.

The next question would of course be if conserver console was set to type
'device' and the device path was set to the device file name of a serial
console listening with the aforementioned getty ? And the buadrate,
start/stop bit, parity, all match to what has been set on getty?

help with conserver

Ido Admon — 2013-05-20T00:19:59

dear linux-il folks,
i thought i might try here before the conserver mailing list. i have a
nice little setup of a soekris net4801
(http://soekris.com/products/net4801.html) that serves (with a
minimal debian and mpd) as a music box. the only way to communicate with
it other than networking (wlan or ethernet) is the serial console.
now,occasionally, i want to access the console without hooking up the
serial cable, because i'm lazy. i found conserver
(http://www.conserver.com), which is supposed to do just that - allow
remote access to the actual console device. the problem is it doesn't
work for me for whatever reason. i'm able to connect to the server,
attach to the console, but then it freezes and i can do nothing except
use the escape sequence to quit.
if i'm already connected at the same time to the console with the
cable (of course it can't really work together, this is just for
testing), i can actually see characters being sent to the console, but
with no apparent response, as if it's just displayed in

Re: Cloud Backup

E.S. Rosenberg — 2013-05-19T14:37:38

I think Shachar is missing one point about S3 and similar amazon services.

You are assuming that amazon created infrastructure specifically for S3.
S3 and other products is amazon renting off it's over-capacity, as
such it *pays* for amazon to have a very reliable and stable
infrastructure because it's for their total business and amazon.com
being down probably costs them in the order of millions per second.

That is why for amazon it pays to make big investments in
infrastructure and renting space there is probably mainly offsetting
the cost of building very robust infrastructure...
Now they probably invest in extra infrastructure specifically for S3
and similar products...

Other then that no one in their right mind making even 5 nines SLA
claims will accepts responsibility for downtime you suffer as a result
of problems on your side, "I" the company commit that my systems will
be available and reachable from the Internet, if your ISP has a
problem you can't blame me (that's why "I" built datacenters in
m

Fwd: [Israel.pm] Fw: perl 5.18.0 is now available!

Shlomi Fish — 2013-05-18T14:09:38

---------- Forwarded message ----------
From: Shlomi Fish <shlomif-l9KC3OxpiO/xoUHEvvZx2g< at >public.gmane.org>
Date: Sat, May 18, 2013 at 5:08 PM
Subject: [Israel.pm] Fw: perl 5.18.0 is now available!
To: Perl in Israel <perl-RykgAxdMFBM+JF/nGntIXQ< at >public.gmane.org>

Begin forwarded message:

Date: Sat, 18 May 2013 09:35:13 -0400
From: Ricardo Signes <perl.p5p-dZ73yy7TvQGcSqSt5UTe8A< at >public.gmane.org>
To: perl5-porters-RykgAxdMFBM< at >public.gmane.org
Subject: perl 5.18.0 is now available!

  It is an error to divide people into the living and the dead:
  there are people who are dead-alive, and people who are
  alive-alive. The dead-alive also write, walk, speak, act. But they
  make no mistakes; only machines make no mistakes, and they produce
  only dead things. The alive-alive are constantly in error, in
  search, in questions, in torment.

    -- Yevgeny Zamyatin

We are excited to announce perl v5.18.0, the first stable release of version
18 of Perl 5.

You will soon be able to download Perl v5.18.0 from y

Re: Cloud Backup

Ghiora Drori — 2013-05-18T01:35:17

Shachar Shemesh enjoys being rude and wrong.
I suggest he install new fuses.



On Fri, May 17, 2013 at 10:05 AM, Shachar Shemesh <shachar-bG81FZYBAlipwFb5G8XvHQ< at >public.gmane.org>wrote:

Re: Fw: Undelivered Mail Returned to Sender

Shlomi Fish — 2013-05-17T17:17:28

Hi,


On Wed, May 8, 2013 at 5:36 PM, Shlomi Fish <shlomif-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> wrote:

I am still getting these bounces. Can you please deal with them?

Regards,

Re: Cloud Backup

Shachar Shemesh — 2013-05-17T10:05:08

You are right that this is not about availability. The previous response
was my fuse jumping because of the pure ludiciority of people claiming
9*9 availability. After reading the actual text, however, it is not
clear what it is about.

It is possible that this means that they will lose (on average) ten bits
per Terabyte per year. If that is the case, honestly, this does not
sound very good. Assuming they have several exabytes of customers data,
this means that they have several actual cases of customer data lose all
the time. Not a particularly good track record.

Or, and this is the more likely scenario, they are talking out of their
asses, and put the number in because it sounds impressive.

Omer Zak wrote:
See my previous comment for why this is equally ludicrous.

Shachar

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Re: Cloud Backup

Oleg Goldshmidt — 2013-05-17T08:43:54


I think you are misreading the claim, Shachar. It is not about
availablity, it is about "durability". I read it as a measure of the
probability that your data will not be lost before a year passes.

Disclaimer: I have never used the service and th above is my "common
sense and reading comprehension" take on what is written in the above
website.

SLA nine ninths (was: Re: Cloud Backup)

Omer Zak — 2013-05-17T08:14:05

IMO, the quote does not promise a nine nines assurance.
It only says that Amazon Glacier WAS DESIGNED to provide this kind of
assurance.

On Fri, 2013-05-17 at 11:04 +0300, Shachar Shemesh wrote:

Re: Cloud Backup

Shachar Shemesh — 2013-05-17T08:04:50

No, it isn't (see below).
When you see someone, anyone, saying such a thing, run. As fast and as
far as you can.

This level of assurance is called "nine nines"(henceforth 9*9). It
amounts to one thousandth of a second of downtime a year. Amazon is
talking out of their asses in offering it.

First, even if their service is 100% reliable, you will not get 9*9 of
service. You home internet connection is not that reliable. The fiber
connecting Israel to the world is not that reliable. The BGP protocol
that is meant to keep the internet alive should a link go down is not
that reliable. No matter what Amazon are doing, nine nines is not the
SLA you will be getting.

Now, you might claim that that is not Amazon's fault. THEY are providing
9*9, and it is the rest of the internet that is not reliable enough.
This claim is bullshit. They are not.

No single server can provide 9*9. Servers fail. Hard disks fail. Memory
fails. NICs fail. Network switches fail. In order to provide a 9*9 SLA,
you must be able to detect e

Re: Cloud Backup

Ghiora Drori — 2013-05-17T07:13:17

Hi,
Please read the doc's regarding S3 and Glacier again.
The best way is to backup Linux under Amazon is  to S3. This way you have
immediate access to the recently backed up stuff.
Once the backups are in S3 you can tell Amazon to move it to Glacier  based
on  the names of the files in S3 and* time constraints; *lets say after two
weeks when it becomes less likely you will need it.
Using the S3 Amazon console, you can also specify when to delete the
backups from glacier automatically a very nice feature.
The cost in glacier is very low.
You only pay high fees for restoring from glacier to S3 (From where you can
easily recover to Linux) if you break the rules. Read the rules below:

 https://aws.amazon.com/glacier/pricing
Quote "Glacier is designed with the expectation that retrievals are
infrequent and unusual, and data will be stored for extended periods of
time. You can retrieve up to 5% of your average monthly storage (pro-rated
daily) for free each month. If you choose to retrieve more than this amount

Re: Cloud Backup

Nadav Har'El — 2013-05-16T21:04:56

On Thu, May 16, 2013, Steve Litt wrote about "Re: Cloud Backup":


They promised the 10 cent per gigabyte per month will stay forever, if you
just *enroll* in May.

Until this month, I've been paying them "just" 40 cents/gigabyte/month
and thought I was getting a good deal (50% discount), because I'm a free
software author :-)

Re: Cloud Backup

Nadav Har'El — 2013-05-16T20:45:37

On Thu, May 16, 2013, Dotan Cohen wrote about "Re: Cloud Backup":

Well, Glacier indeed appears to be great service, but it's not very
convenient to back up a Linux machine with it. I was looking for
something "natural" and "convenient" like rsync, hoping that I wouldn't
need to write my own backup software. I have some very interesting
thoughts on how I would write a backup software that worked directly
on S3 (or Glacier) without requiring any other paid service (EC2,
EBS, database, etc.), but I am not aware of any such backup software
on Linux already existing.

If anyone wants to write one, I'll be happy to give you my ideas.
(or, has anybody know of an existing tool like that?)

Another problem with Glacier compared to S3 is its ridiculously complex
pricing model. Can anybody tell me what it would cost me to download a
50 GB backup over, say, two days? My calculation comes out to $7.5,
but their pricing "algorithm" is so complex, that it could be $750 and
I wouldn't know ;-)


Why have you concluded that