From hareldvd at gmail.com Sun Oct 5 21:14:08 2014 From: hareldvd at gmail.com (David Harel) Date: Sun, 5 Oct 2014 21:14:08 +0300 Subject: Boot sequence on Ubuntu 14.04 Message-ID: Greetings, I hastily tried to upgrade from 10.04 to 14.04 using do-relase-upgrade It turned out to be a bad idea. Now after boot I get something like "can not mount /" and then it suggests that I will type (among other things) M for maintenance (start a shell) First flaw I noticed is missing init functions typically in /lib/lsb/init_functions.d I also noticed that init_functions file is not up to date so I copied them from a stable14.04 installation. This operation enabled running them scripts in /etc/init.d and also the service command. Also I had to create a directory /run/network so ifup -a will start. Still I couldn't figure out what step in the boot process I am missing that fails to mount / Currently I setup the services on this server manually including: mount -rw,remount / mountall networking ifup -a // Had to do it separately. smbd nmbd ssh postgresql-8.4 apache2 the server is running in full but I guess it has some security issues. I can not use the init command (i.e. init 2) to initiate the machine. It reboots and I have to start all over again. I intend to install a new server instead but for curiosity sake I want to keep the bad server in order to learn more about upstart. I did not find any articles about boot sequence with upstart other than how to build rc files and a few about the conf files in /etc/init Will appreciate some good reading on the subject. Thanks. David Harel Amuka -------------- next part -------------- An HTML attachment was scrubbed... URL: From esr+linux-il at g.jct.ac.il Tue Oct 7 23:30:58 2014 From: esr+linux-il at g.jct.ac.il (E.S. Rosenberg) Date: Tue, 7 Oct 2014 23:30:58 +0300 Subject: Boot sequence on Ubuntu 14.04 In-Reply-To: References: Message-ID: DId you verify that everything had finished installing w/o error? For interrupted installs: dpkg --configure -a and then: apt-get update && apt-get autoclean && apt-get dist-upgrade && apt-get autoremove Would make sure that everything was installed properly, what you decribe to me sounds like a system that didn't actually finish it's upgrade/install process and was rebooted. HTH, chag sameach, Eliyahu - ????? 2014-10-05 21:14 GMT+03:00 David Harel : > Greetings, > > I hastily tried to upgrade from 10.04 to 14.04 using do-relase-upgrade > It turned out to be a bad idea. > Now after boot I get something like "can not mount /" and then it suggests > that I will type (among other things) M for maintenance (start a shell) > First flaw I noticed is missing init functions typically in > /lib/lsb/init_functions.d > I also noticed that init_functions file is not up to date so I copied them > from a stable14.04 installation. This operation enabled running them > scripts in /etc/init.d and also the service command. > Also I had to create a directory /run/network so ifup -a will start. > Still I couldn't figure out what step in the boot process I am missing > that fails to mount / > Currently I setup the services on this server manually including: > mount -rw,remount / > mountall > networking > ifup -a // Had to do it separately. > smbd > nmbd > ssh > postgresql-8.4 > apache2 > > the server is running in full but I guess it has some security issues. > I can not use the init command (i.e. init 2) to initiate the machine. It > reboots and I have to start all over again. > > I intend to install a new server instead but for curiosity sake I want to > keep the bad server in order to learn more about upstart. > > I did not find any articles about boot sequence with upstart other than > how to build rc files and a few about the conf files in /etc/init > > Will appreciate some good reading on the subject. > > Thanks. > > David Harel > Amuka > > _______________________________________________ > Linux-il mailing list > Linux-il at cs.huji.ac.il > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From amichai at iglu.org.il Thu Oct 9 02:12:34 2014 From: amichai at iglu.org.il (Amichai Rotman) Date: Thu, 9 Oct 2014 02:12:34 +0300 Subject: Boot sequence on Ubuntu 14.04 In-Reply-To: References: Message-ID: Just a shot in the dark: I think that some time after 10.04, the fstab entries refer to the devices by their UUID, instead of /dev/sdX. Amichai. 2014-10-07 23:30 GMT+03:00 E.S. Rosenberg : > DId you verify that everything had finished installing w/o error? > For interrupted installs: > dpkg --configure -a > > and then: > apt-get update && apt-get autoclean && apt-get dist-upgrade && apt-get > autoremove > > Would make sure that everything was installed properly, what you decribe > to me sounds like a system that didn't actually finish it's upgrade/install > process and was rebooted. > > HTH, chag sameach, > Eliyahu - ????? > > 2014-10-05 21:14 GMT+03:00 David Harel : > >> Greetings, >> >> I hastily tried to upgrade from 10.04 to 14.04 using do-relase-upgrade >> It turned out to be a bad idea. >> Now after boot I get something like "can not mount /" and then it >> suggests that I will type (among other things) M for maintenance (start a >> shell) >> First flaw I noticed is missing init functions typically in >> /lib/lsb/init_functions.d >> I also noticed that init_functions file is not up to date so I copied >> them from a stable14.04 installation. This operation enabled running them >> scripts in /etc/init.d and also the service command. >> Also I had to create a directory /run/network so ifup -a will start. >> Still I couldn't figure out what step in the boot process I am missing >> that fails to mount / >> Currently I setup the services on this server manually including: >> mount -rw,remount / >> mountall >> networking >> ifup -a // Had to do it separately. >> smbd >> nmbd >> ssh >> postgresql-8.4 >> apache2 >> >> the server is running in full but I guess it has some security issues. >> I can not use the init command (i.e. init 2) to initiate the machine. It >> reboots and I have to start all over again. >> >> I intend to install a new server instead but for curiosity sake I want to >> keep the bad server in order to learn more about upstart. >> >> I did not find any articles about boot sequence with upstart other than >> how to build rc files and a few about the conf files in /etc/init >> >> Will appreciate some good reading on the subject. >> >> Thanks. >> >> David Harel >> Amuka >> >> _______________________________________________ >> Linux-il mailing list >> Linux-il at cs.huji.ac.il >> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il >> >> > > _______________________________________________ > Linux-il mailing list > Linux-il at cs.huji.ac.il > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From esr+linux-il at g.jct.ac.il Thu Oct 9 22:06:48 2014 From: esr+linux-il at g.jct.ac.il (E.S. Rosenberg) Date: Thu, 9 Oct 2014 22:06:48 +0300 Subject: OT: looking for someone going back and forth to Finland from Israel Message-ID: Maybe someone on the list works for Nokia or something? Or someone is going to SLUSH? I have a phone that only gets fixed there... ?????? ?????, Eliyahu - ????? -------------- next part -------------- An HTML attachment was scrubbed... URL: From sara.fink at gmail.com Fri Oct 10 11:39:23 2014 From: sara.fink at gmail.com (sara fink) Date: Fri, 10 Oct 2014 11:39:23 +0300 Subject: OT: looking for someone going back and forth to Finland from Israel In-Reply-To: References: Message-ID: My suggestion, if you don't find anyone, send it via israeli post. Send it as registered mail and when you send it, specify that it's for repair, so that when you get it back you won't have to pay customs again. On Thu, Oct 9, 2014 at 10:06 PM, E.S. Rosenberg wrote: > Maybe someone on the list works for Nokia or something? Or someone is > going to SLUSH? I have a phone that only gets fixed there... > > ?????? ?????, > Eliyahu - ????? > > _______________________________________________ > Linux-il mailing list > Linux-il at cs.huji.ac.il > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From shachar at shemesh.biz Fri Oct 10 15:38:29 2014 From: shachar at shemesh.biz (Shachar Shemesh) Date: Fri, 10 Oct 2014 15:38:29 +0300 Subject: How do I debug this (mailman)? Message-ID: <5437D345.10501@shemesh.biz> I'm trying to set up mailman on a new host (transferring my VPS to a new machine). This is running Debian. Mailman is set up, shows up in the web interface. I transferred the mailing list. I'm trying to send myself a password reminder, and.... nothing. The postfix logs don't show anything at all. /var/lib/mailman/qfils/virgin shows something that looks like the password reminder Nothing appears in my inbox. All tips on the internet say to look for the mailer's logs to find out what's wrong, but the mailer doesn't show any logs at all. Ideas? Shachar -------------- next part -------------- An HTML attachment was scrubbed... URL: From amos.shapira at gmail.com Fri Oct 10 16:30:34 2014 From: amos.shapira at gmail.com (Amos Shapira) Date: Sat, 11 Oct 2014 00:30:34 +1100 Subject: How do I debug this (mailman)? In-Reply-To: <5437D345.10501@shemesh.biz> References: <5437D345.10501@shemesh.biz> Message-ID: mailman logs? I mean - if the MTA doesn't say anything about this then perhaps the client haven't sent anything? On 10 October 2014 23:38, Shachar Shemesh wrote: > I'm trying to set up mailman on a new host (transferring my VPS to a new > machine). This is running Debian. Mailman is set up, shows up in the web > interface. I transferred the mailing list. I'm trying to send myself a > password reminder, and.... nothing. > > The postfix logs don't show anything at all. > /var/lib/mailman/qfils/virgin shows something that looks like the password > reminder > Nothing appears in my inbox. > > All tips on the internet say to look for the mailer's logs to find out > what's wrong, but the mailer doesn't show any logs at all. > > Ideas? > > Shachar > > _______________________________________________ > Linux-il mailing list > Linux-il at cs.huji.ac.il > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il > > -- -------------- next part -------------- An HTML attachment was scrubbed... URL: From d.s at daniel.shahaf.name Sun Oct 12 00:24:10 2014 From: d.s at daniel.shahaf.name (Daniel Shahaf) Date: Sat, 11 Oct 2014 21:24:10 +0000 Subject: How do I debug this (mailman)? In-Reply-To: <5437D345.10501@shemesh.biz> References: <5437D345.10501@shemesh.biz> Message-ID: <20141011212410.GA1993@tarsus.local2> Shachar Shemesh wrote on Fri, Oct 10, 2014 at 15:38:29 +0300: > I'm trying to set up mailman on a new host (transferring my VPS to a new > machine). This is running Debian. Mailman is set up, shows up in the web > interface. I transferred the mailing list. I'm trying to send myself a > password reminder, and.... nothing. > > The postfix logs don't show anything at all. > /var/lib/mailman/qfils/virgin shows something that looks like the > password reminder > Nothing appears in my inbox. > > All tips on the internet say to look for the mailer's logs to find out > what's wrong, but the mailer doesn't show any logs at all. > > Ideas? > > Shachar Could that be caused by MX records for the list not yet pointing at the new host? i.e., perhaps the new mailman instance is not handling the list yet because MX records don't point at it (the new mailman instance). HTH Daniel From shachar at shemesh.biz Sun Oct 12 06:00:00 2014 From: shachar at shemesh.biz (Shachar Shemesh) Date: Sun, 12 Oct 2014 06:00:00 +0300 Subject: How do I debug this (mailman)? In-Reply-To: <20141011212410.GA1993@tarsus.local2> References: <5437D345.10501@shemesh.biz> <20141011212410.GA1993@tarsus.local2> Message-ID: <5439EEB0.9000706@shemesh.biz> On 12/10/14 00:24, Daniel Shahaf wrote: > Could that be caused by MX records for the list not yet pointing at > the new host? i.e., perhaps the new mailman instance is not handling > the list yet because MX records don't point at it (the new mailman > instance). HTH Daniel It /could/, but I find it unlikely. The local MTA considers those domains to be local, and does local delivery for them. Also, mailman is not bound to only handle locally handled domains, so long as the emails reach it. Either way, where are the logs? Shachar -------------- next part -------------- An HTML attachment was scrubbed... URL: From amos.shapira at gmail.com Sun Oct 12 09:33:25 2014 From: amos.shapira at gmail.com (Amos Shapira) Date: Sun, 12 Oct 2014 17:33:25 +1100 Subject: How do I debug this (mailman)? In-Reply-To: <5439EEB0.9000706@shemesh.biz> References: <5437D345.10501@shemesh.biz> <20141011212410.GA1993@tarsus.local2> <5439EEB0.9000706@shemesh.biz> Message-ID: "Either way, where are the logs?" what does "lsof" say? On 12 October 2014 14:00, Shachar Shemesh wrote: > On 12/10/14 00:24, Daniel Shahaf wrote: > > Could that be caused by MX records for the list not yet pointing at the > new host? i.e., perhaps the new mailman instance is not handling the list > yet because MX records don't point at it (the new mailman instance). HTH > Daniel > > It *could*, but I find it unlikely. The local MTA considers those domains > to be local, and does local delivery for them. Also, mailman is not bound > to only handle locally handled domains, so long as the emails reach it. > > Either way, where are the logs? > > Shachar > > _______________________________________________ > Linux-il mailing list > Linux-il at cs.huji.ac.il > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il > > -- -------------- next part -------------- An HTML attachment was scrubbed... URL: From geoff at QuiteLikely.com Mon Oct 13 12:17:46 2014 From: geoff at QuiteLikely.com (Geoff Shang) Date: Mon, 13 Oct 2014 10:17:46 +0100 (BST) Subject: How do I debug this (mailman)? In-Reply-To: <5437D345.10501@shemesh.biz> References: <5437D345.10501@shemesh.biz> Message-ID: On Fri, 10 Oct 2014, Shachar Shemesh wrote: > I'm trying to set up mailman on a new host (transferring my VPS to a new > machine). This is running Debian. Mailman is set up, shows up in the web > interface. I transferred the mailing list. I'm trying to send myself a > password reminder, and.... nothing. > > The postfix logs don't show anything at all. > /var/lib/mailman/qfils/virgin shows something that looks like the > password reminder > Nothing appears in my inbox. > > All tips on the internet say to look for the mailer's logs to find out > what's wrong, but the mailer doesn't show any logs at all. Is there anything useful logged in /var/log/mailman ? There's a lot of possibilities but we'll start with this. Geoff. From shachar at shemesh.biz Thu Oct 16 18:33:02 2014 From: shachar at shemesh.biz (Shachar Shemesh) Date: Thu, 16 Oct 2014 18:33:02 +0300 Subject: How do I debug this (mailman)? (resolved) In-Reply-To: <5437D345.10501@shemesh.biz> References: <5437D345.10501@shemesh.biz> Message-ID: <543FE52E.4020404@shemesh.biz> On 10/10/14 15:38, Shachar Shemesh wrote: > I'm trying to set up mailman on a new host (transferring my VPS to a > new machine). This is running Debian. Mailman is set up, shows up in > the web interface. I transferred the mailing list. I'm trying to send > myself a password reminder, and.... nothing. > > The postfix logs don't show anything at all. > /var/lib/mailman/qfils/virgin shows something that looks like the > password reminder > Nothing appears in my inbox. > > All tips on the internet say to look for the mailer's logs to find out > what's wrong, but the mailer doesn't show any logs at all. > > Ideas? > > Shachar The problem turned out to be quite simple. I forgot to run the mailman daemon (it was not run when I installed mailman, probably because the "mailman" mailing list was not defined at the time). As for how to debug this: It is not clear why there were no logs. The way I figured this out was because I found out that the mail was piling in one of the mailman administrative directories. Googling that directory's name brought me the answer. Everyone, thanks for trying. Shachar -------------- next part -------------- An HTML attachment was scrubbed... URL: From shachar at shemesh.biz Mon Oct 20 10:23:16 2014 From: shachar at shemesh.biz (Shachar Shemesh) Date: Mon, 20 Oct 2014 10:23:16 +0300 Subject: Should I switch my home to IPv6? Message-ID: I am shopping around for a new ISP. Exaphone are offering a reasonable deal, with an option to connect using IPv6. Sadly, their fixed IP costs are astronomical even with IPv6, without any justification I can see. The question is: should I? Do standard linksys routers support IPv6? Will I be able to get any level of bittorrent bandwidth with my IP unreachable to other peers running IPv4? What do you say? Shachar From eli at billauer.co.il Thu Oct 23 10:10:03 2014 From: eli at billauer.co.il (Eli Billauer) Date: Thu, 23 Oct 2014 10:10:03 +0300 Subject: Haifux is back! (Bitcoin on Monday) Message-ID: <5448A9CB.4080501@billauer.co.il> Hi all, Haifux is resuming its activity, now that the holidays are over. Our next meeting, on this Monday, is about Bitcoin. See http://www.haifux.org/lectures/330/ This is also a call for speakers -- the rain has fallen on Haifa, but our lecture pipe is quite dry. Suggestions to talks are welcome. Regards, Eli -- Web: http://www.billauer.co.il From shlomif at gmail.com Fri Oct 24 19:07:22 2014 From: shlomif at gmail.com (Shlomi Fish) Date: Fri, 24 Oct 2014 19:07:22 +0300 Subject: Ubuntu 14.10 Was Released Message-ID: Hi all! Ubuntu 14.10 was released yesterday: * http://www.zdnet.com/ubuntu-14-10-has-landed-and-its-not-just-for-desktops-7000035010/ (short URL : http://is.gd/xIYNYA ) * https://wiki.ubuntu.com/UtopicUnicorn/ReleaseNotes Enjoy! Regards, -- Shlomi Fish -- ------------------------------------------ Shlomi Fish http://www.shlomifish.org/ Chuck Norris helps the gods that help themselves. Please reply to list if it's a mailing list post - http://shlom.in/reply . -------------- next part -------------- An HTML attachment was scrubbed... URL: From slitt at troubleshooters.com Fri Oct 24 20:55:59 2014 From: slitt at troubleshooters.com (Steve Litt) Date: Fri, 24 Oct 2014 13:55:59 -0400 Subject: Ubuntu 14.10 Was Released In-Reply-To: References: Message-ID: <20141024135559.10c4110a@mydesq2.domain.cxm> On Fri, 24 Oct 2014 19:07:22 +0300 Shlomi Fish wrote: > Hi all! > > Ubuntu 14.10 was released yesterday: > > * > http://www.zdnet.com/ubuntu-14-10-has-landed-and-its-not-just-for-desktops-7000035010/ > > (short URL : http://is.gd/xIYNYA ) > > * https://wiki.ubuntu.com/UtopicUnicorn/ReleaseNotes It doesn't specifically say whether PID1 will be Upstart, systemd, or something else. SteveT From eli at billauer.co.il Sat Oct 25 18:54:52 2014 From: eli at billauer.co.il (Eli Billauer) Date: Sat, 25 Oct 2014 18:54:52 +0300 Subject: [HAIFUX LECTURE] Bitcoin -- Daniel Brunstein Message-ID: <544BC7CC.2090901@billauer.co.il> On Monday, October 27th at 18:30, Haifux will gather to hear a talk by Daniel Brunstein: Bitcoin - What and Why Abstract General Agenda * What is Bitcoin * Wallets (mobile, cloud, cold storage) * Price and Market Capacitance * Worldwide adoption by big corporations and merchants * Regulatory environment * Billion Dollar Markets being disrupted by Bitcoin * Alternative crypto-currencies and Bitcoin 2.0 * VC investment in Bitcoin startups * Bitcoin in Israel * Bitcoin in the Academy Technical Agenda * Public/private keys * Mining * Blockchain * Security, 51% attack ================================================================= We meet in Taub building, room 6. For instructions see: http://www.haifux.org/where.html Attendance is free, and you are all invited! ================================================================== Future lectures: There are no scheduled lectures. ================================================================== We are always interested in hearing your talks and ideas. If you wish to give a talk, hold a discussion, or just plan some event haifux might be interested in, please contact us atwebmaster at haifux.org -- Web:http://www.billauer.co.il From esr+linux-il at g.jct.ac.il Sun Oct 26 07:30:10 2014 From: esr+linux-il at g.jct.ac.il (E.S. Rosenberg) Date: Sun, 26 Oct 2014 07:30:10 +0200 Subject: Should I switch my home to IPv6? In-Reply-To: References: Message-ID: 2014-10-20 10:23 GMT+03:00 Shachar Shemesh : > I am shopping around for a new ISP. Exaphone are offering a reasonable > deal, with an option to connect using IPv6. > > Sadly, their fixed IP costs are astronomical even with IPv6, without any > justification I can see. > "Because we can" and "Because it's very profitable to charge you a lot for something that costs us almost nothing" and "Because instead of re-evaluating IPv4 policies in IPv6, if I can charge you and you will pay then I will do so" (those are just some examples of corporate thinking....) > > The question is: should I? Do standard linksys routers support IPv6? Will > I be able to get any level of bittorrent bandwidth with my IP unreachable > to other peers running IPv4? > Any router that supports decent firmware will support IPv6 (either through the native formware or through openwrt etc) You will still have to have an IPv4 tunnel, either provided by your at home router (most likely/best scenario) or at your ISP unless you want to disconnect from 90% of the known internet (yes the major sites are on IPv6 so if you limit yourself to google/facebook/amazon etc you can probably stay in the IPv6 only zone...). If you have the IPv4 tunnel it should be fairly transparent to you since you will just be connected to both IPv4 and IPv6. I was not aware that any ISP in Israel had started to offer IPv6 service... maybe you can cajole them into a better rate by telling them you are basically a beta-tester for their new service... Regards, Eliyahu - ????? > > What do you say? > > Shachar > _______________________________________________ > Linux-il mailing list > Linux-il at cs.huji.ac.il > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il > -------------- next part -------------- An HTML attachment was scrubbed... URL: From gilboad at gmail.com Sun Oct 26 11:29:23 2014 From: gilboad at gmail.com (Gilboa Davara) Date: Sun, 26 Oct 2014 11:29:23 +0200 Subject: Ubuntu 14.10 Was Released In-Reply-To: <20141024135559.10c4110a@mydesq2.domain.cxm> References: <20141024135559.10c4110a@mydesq2.domain.cxm> Message-ID: On Fri, Oct 24, 2014 at 8:55 PM, Steve Litt wrote: > On Fri, 24 Oct 2014 19:07:22 +0300 > Shlomi Fish wrote: > >> Hi all! >> >> Ubuntu 14.10 was released yesterday: >> >> * >> http://www.zdnet.com/ubuntu-14-10-has-landed-and-its-not-just-for-desktops-7000035010/ >> >> (short URL : http://is.gd/xIYNYA ) >> >> * https://wiki.ubuntu.com/UtopicUnicorn/ReleaseNotes > > It doesn't specifically say whether PID1 will be Upstart, systemd, or > something else. > > SteveT > AFAIK 14.10 is still using upstrart. - Gilboa From pub at goldshmidt.org Wed Oct 29 14:06:00 2014 From: pub at goldshmidt.org (Oleg Goldshmidt) Date: Wed, 29 Oct 2014 14:06:00 +0200 Subject: preventing dhclient from running under certain conditions Message-ID: Hi, Suppose we have a Debian Wheezy machine with a bunch of network ? ? interfaces, some of them VLANs. Some of the interfaces are ? ? DHCP-based. For various reasons there is a requirement that ? ? DHCPDISCOVER should not be sent out when certain conditions are not ? ? fulfilled[*]. The conditions are always known locally, we can assume ? ? that there is a program, call it chk4dhcp, that returns 0 or 1, and ? ? the DHCP interfaces should only be started when the status is ? ? 0. Static interfaces should always be configured and started. This mechanism should work on boot, on restarting network, on "ifup ? ? ", "ifconfig up", etc. Question: how does one intervene in the DHCP client ? ? operation? I found out that /etc/dhcp-enter-hooks.d/* is irrelevant ?? (if a hook fails the failure is ignored). So is /sbin/dhclient-script ? ? (I thought I'd create a "chk4dhcp && dhclient-script" script and specify it as "script" in dhclient.conf - does not help). I also ? ? failed to write "up" or "pre-up" stanzas in /etc/network/interfaces ? ? that would prevent DHCPDISCOVER from being sent. For reasons that should be obvious I am very reluctant to rename ? ? /sbin/dhclient binary and place something else in its stead. The existing configuration ?seems to be Debian default) ? does *not* have dhcpcd, and I am also ? ? reluctant to change ? (and re-test)? the whole framework, even if dhcpcd proves more ? ? malleable. Any ideas? [*] ? ?Without? ?discussing the actual requirements, consider ? a trivial ?example. Suppose you have several DHCP VLANs configured on eth1, and suppose that for various operational reasons the eth1 link may occasionally be down. What happens in such a case is that dhclient keeps trying, for all VLANs and for a long time, before giving up. You don't want this to keep a machine from booting, to keep other interfaces from starting, etc. One would want to detect this early (e.g., using ethtool or similar) and not even attempt to bring up DHCP interfaces. [In my mind, this is a bug in dhclient, but this is beside the point...] -- Oleg Goldshmidt | pub at goldshmidt.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From pub at goldshmidt.org Wed Oct 29 14:47:53 2014 From: pub at goldshmidt.org (Oleg Goldshmidt) Date: Wed, 29 Oct 2014 14:47:53 +0200 Subject: [JOB opportunities] DevOps Engineer, Software Engineer, Product Manager Message-ID: Hi, My employer, TrapX Data Security Ltd., has several openings for experienced Linux people (the last one - Product Manager - is not as Linux-oriented but is attached for serendipity). Feel free to send me your CV (off list, of course) if you are interested. 1. DevOps ? ?Engineer: Experience Level: Senior Employee Type: ? ? full ? ? time Location: Tel Aviv, Israel An ?i? nnovative s?? tartup company is looking for Looking for a experienced ? ? DevOps engineer for building and ?d? ?eploying? security products in a ? ? complex and challenging environment. Working with development, ? ? integration ? QA,? and product management ? teams? . Applicable Skills ?* ? Bachelor ?'? s degree in Computer Science or related field ?* ? solid ?L? inux systems administration experience ?* ? ?e? xcellent scripting abilities in ?b? ash and ?p? ython ? (and the rest of the GNU/Linux toolchain)? ?* ? 5+ years ?of experience ? automating operations and engineering tasks with scripting ? ? languages ( ?p? ython a must) ?* o? perational excellence through tool development, monitoring, logging, ? ? reporting, controls and automation ?* ? ?e? xperience ?with public and private ? cloud infrastructure ?(e.g., ? AWS, ? ? Google, VMWare ?)? ?* ? ?s?trong technical foundation in virtualization technologies * e? xperience running mission-critical Linux servers in virtualized ? ? environments ?* s? olid understanding of TCP/IP networking concepts and major protocols. ?* ? ?s? olid understanding of tiered security concepts (network, OS, ? ?applications). ?* ability to build, monitor, and tune production servers and services ?* advanced software configuration management experience (especially with ? ?g? it ?) * experience with continuous integration / continuous deployment * experience with Linux packaging systems (deb and/or rpm), including building and maintaining packages? ?* a? bility to work individually and in small teams ?* software development experience - an advantage? 2. Software Engineer : An Innovative Startup company is looking for top notch developers Experience Level: Senior Employee Type: ? ? full-time Location: Tel Aviv, Israel Applicable Skills : ?* ? ?B? achelor ?'? s degree in Computer Science or related field ?* ? ?k? nowledge and Experience in Linux ?p? rogramming ?e? nvironment ?and toolchain ? - ?a m? ust ?* d? eep ?k? nowledge ?of? ? ?C / ? C++ / ??Python / ? Shell programming - ?a? ?m? ust ?* k? nowledge in ?s? ecurity architecture ?* s? olid understanding of TCP/IP networking concepts and major protocols. ?* ? ?experience with? My ?SQL? / ?MariaDB/? S ?QL? ite ?* k? nowledge and ?e? xperience in Web services ?and protocols ? (XML, ? ? SOAP, ? ? JSON, ? ? REST API) ?* k? nowledge in TCP/IP and ?n? etworking ? in general? ?* experience developing Linux kernel modules - advantage 3. Sr ?.? Product Manager - ? ? Enterprise / Security Products We are looking for a S ?enior? Product Manager ?for Enterprise ? Security Products ?? ?? . Applicable Skills: ?* ability to multitask? ?* ? ?ability to e? xercise independent judgment in developing methods, techniques, and ? ? evaluation criteri ?a? for obtaining results ?* ? 6 or more years of experience in product management roles ?* ? 4 or more years of experience with the high technology industry with ? ? software security technology knowledge a plus ?* c? ustomer service orientation ?* s? ales engineering and / or development experience a plus ?* e? xcellent verbal and written communication skills ?* s? trong organizational and self-motivation skills ?* s? olid business sense combined with ability to think strategically and ? ? execute tactically ?* s? ome marketing, business development, and / or selling experience a ? ? plus ?* p? roven ability to develop quality products on time ?* s? trong documentation skills ?* t? ravelling > 40% -- Oleg Goldshmidt | pub at goldshmidt.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From linux-il at shimi.net Thu Oct 30 00:10:57 2014 From: linux-il at shimi.net (shimi) Date: Thu, 30 Oct 2014 00:10:57 +0200 Subject: preventing dhclient from running under certain conditions In-Reply-To: References: Message-ID: On Wed, Oct 29, 2014 at 2:06 PM, Oleg Goldshmidt wrote: > [*] Without discussing the actual requirements, consider a trivial > example. Suppose you have several DHCP VLANs configured on eth1, and suppose > that for various operational reasons the eth1 link may occasionally be down. > What happens in such a case is that dhclient keeps trying, for all VLANs and > for a long time, before giving up. You don't want this to keep a machine > from booting, to keep other interfaces from starting, etc. One would want to > detect this early (e.g., using ethtool or similar) and not even attempt to > bring up DHCP interfaces. [In my mind, this is a bug in dhclient, but this > is beside the point...] > What about allow-hotplug? http://www.debian.org/doc/manuals/debian-reference/ch05.en.html#_the_basic_syntax_of_etc_network_interfaces -- Shimi