Installing SL6 behind a proxy
Hi! I install SL6 via Cobbler (PXE) within a company network. While installing anaconda tries to reach Scientific Linux ftp server. The outgoing network traffic uses a proxy. The connection fails and every try does take time. Can I switch off these network connections completely? Thanks in advance for any help Regards mad
Re: SL6.1 memory usage
issue resolved (somewhat) dmesg|Memory shows 1GB reserved (of which 850MB memmap = 1.3% of total memory) it also shows 650MB absent, apparently this is due to holes in the memory mapping, which is something hardware specific (it's an AMD Dell C6145, so it's amd specific or Dell/Bios specific) anyway, thanks for the feedback stijn % slabtop -s c --once |head -10 Active / Total Objects (% used) : 185625 / 205302 (90.4%) Active / Total Slabs (% used) : 16756 / 16757 (100.0%) Active / Total Caches (% used) : 101 / 182 (55.5%) Active / Total Size (% used) : 856865.31K / 859451.65K (99.7%) Minimum / Average / Maximum Object : 0.02K / 4.19K / 4096.00K OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME 384 384 100% 2048.00K 384 1 786432K size-2097152 26276 26250 99% 1.00K 6569 4 26276K ext4_inode_cache 181 181 100% 32.12K 181 1 11584K kmem_cache very different indeed. (btw size-2097152 sounds like one of the default name used by hugectl (or hugeadm) from the hugetlbfs tools). is that mounted in your case? and are there any hugepages reserved? ) Not that I'd know of. But wasn't there a new feature called transparent hugepage support in 6.1? thp shows in /proc/meminfo as AnonHugePages ]# grep Huge /proc/meminfo AnonHugePages: 18432 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB you show check those there too to see where the come from stijn Cheers, Stephan stijn On 09/05/2011 05:10 PM, Stephan Wiesand wrote: Hi Stijn, On Sep 5, 2011, at 16:24, Stijn De Weirdt wrote: hi all, we are having an issue with some SL61 nodes. after a reboot, free reports 1.4GB of memory in use, of which 24+163=187MB buffers+cache. i'm unable to identify what is holding the memory, and i'd like to know if others see this too and how i could proceed to find the culprit. yes, we see this as well. On a 48 GB system without users or special processes: # free -m total used free shared buffers cached Mem: 48388 1374 47013 0 30 186 -/+ buffers/cache: 1157 47231 In /proc/meminfo, I find that the difference to what I'd consider reasonable (and see on a 48GB SL5 system) is due to slabs. A slabtop -s c reveals that it's a size-2097152 pool accounting for this. Do you see this as well? Cheers, Stephan (it is a 32core/64GB machine; kernel commandline has crashkernel=128M@16M (but no difference then eg crashkernel=auto and kdump is off)) many thanks, stijn free # free -m total used free shared buffers cached Mem: 64554 1604 62949 0 24 166 -/+ buffers/cache: 1413 63140 Swap: 16394 0 16394 mem sorted top top - 16:13:52 up 13 min, 1 user, load average: 0.00, 0.01, 0.01 Tasks: 694 total, 1 running, 693 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 66103768k total, 1643336k used, 64460432k free, 25164k buffers Swap: 16787916k total, 0k used, 16787916k free, 170552k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2788 root 20 0 37988 25m 2876 S 0.0 0.0 0:00.06 pbs_mom 2653 root 20 0 159m 12m 1472 S 0.0 0.0 0:00.19 ncm-cdispd 2643 root 20 0 138m 5604 840 S 0.0 0.0 0:00.00 cdp-listend 3276 root 20 0 120m 4156 3232 S 0.0 0.0 0:00.07 sshd 2620 root 20 0 745m 3788 1764 S 0.0 0.0 0:00.12 automount 3102 nslcd 20 0 427m 2936 488 S 0.0 0.0 0:00.00 nslcd 3301 root 20 0 103m 1688 1336 S 0.0 0.0 0:00.05 bash 3623 root 20 0 13528 1604 844 R 0.3 0.0 0:00.14 top 1 root 20 0 21416 1544 1240 S 0.0 0.0 0:06.23 init 2482 root 20 0 194m 1484 1108 S 0.0 0.0 0:00.14 qlgc_dsc 2325 root 20 0 242m 1412 928 S 0.0 0.0 0:00.04 rsyslogd 2459 rpcuser 20 0 23112 1168 884 S 0.0 0.0 0:00.00 rpc.statd 2606 root 18 -2 10956 1144 412 S 0.0 0.0 0:00.03 udevd 3164 nscd 20 0 583m 1132 788 S 0.0 0.0 0:00.02 nscd 2697 root 20 0 62040 1064 464 S 0.0 0.0 0:00.00 sshd 943 root 16 -4 10960 1052 316 S 0.0 0.0 0:00.12 udevd 2607 root 18 -2 10956 1052 320 S 0.0 0.0 0:00.00 udevd 2723 root 20 0 112m 1012 380 S 0.0 0.0 0:00.00 crond 2707 root 20 0 22488 992 752 S 0.0 0.0 0:00.03 xinetd 2439 rpc 20 0 18940 908 672 S 0.0 0.0 0:00.04 rpcbind 2568 dbus 20 0 23448 876 604 S 0.0 0.0 0:00.01 dbus-daemon 2972 nagios 20 0 37096 796 452 S 0.0 0.0 0:00.00 nrpe
Re: {OT} Saga with certificates continues : Hackers steal SSL certificates for CIA, MI6, Mossad
On Wed, 7 Sep 2011, Connie Sieh wrote: On Wed, 7 Sep 2011, Dr Andrew C Aitchison wrote: This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --1870876696-1143114093-1315381521=:22438 Content-Type: TEXT/PLAIN; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE On Tue, 6 Sep 2011, Pat Riehecky wrote: On 09/06/2011 07:19 AM, Frank Lanitz wrote: Am 06.09.2011 06:38, schrieb Franchisseur Robert: -- Le (On) 2011-09-06 +0200 =E0 (at) 00:53:39 Andreas Petzold =E9crivit= =20 (wrote): -- =20 On Tuesday, September 06, 2011 00:26:22 Valerii D. wrote: snip =20 Yes. And the distribution is still the browser 3. 6. 2 without securi= ty updates. And with a certificate from DigiNotar. TUV released the errata a week ago, so we can expect to see patched rp= ms=20 from SL soon. In the meantime you can just delete the Diginotar CA from FF. You can't ! It seems it was deleted but if you re-open : Edit -- Preferences -- Advanced -- Encryption -- View= =20 certificats -- Authorities it is still there ! =20 =20 Don't delete them, just mark them as not trustworthy. This will help. =20 =20 Cheers, Frank =20 P.S. Aren't the certifactes distributes within the ca-package which have at least been updated for 6.x? Hello, It looks like the errata pushed out on 9/1 and 9/2 should take care of th= is=20 automatically. http://listserv.fnal.gov/scripts/wa.exe?A2=3Dind1109L=3Dscientific-linux= -errataP=3D337 http://listserv.fnal.gov/scripts/wa.exe?A2=3Dind1109L=3Dscientific-linux= -errataP=3D1002 RedHat have released firefox-3.6.22 and xulrunner-1.9.2.22 =09https://rhn.redhat.com/errata/RHSA-2011-1268.html and thunderbird 1.5.0.12-43-el4 / 2.0.0.24-25.el5 / 3.1.14-1.el6_1 =09https://rhn.redhat.com/errata/RHSA-2011-1267.html thus the firefox and thunderbird errata pushed last week are not=20 considered sufficient by TUV. Expect updated ones shortly. -Connie Sieh --=20 Dr. Andrew C. Aitchison=09=09Computer Officer, DPMMS, Cambridge a.c.aitchi...@dpmms.cam.ac.uk=09http://www.dpmms.cam.ac.uk/~werdna --1870876696-1143114093-1315381521=:22438-- Updated firefox and thunderbird rpms are now available in the security errata area. -Connie Sieh
Graphical login + ldap (+ NFS?) problems :)
Hello All, I think I asked this a while back but perhaps I wasn't very clear on what has been happening. I have the option to do LDAP with a centralized server, and I would like to do so. I use NFS mounted home directories (NFSv3). I have installed SL6.1 and it works great. I know I have successfully set up LDAP *and* NFS, because I can log in remotely with SSH as well as on a terminal. However, when I try to log in with GDM or XDM, it will accept my password, black out the screen, and then return to either GDM or XDM. I *can*, however, log in with a local account. Is there something special about GDM or XDM with regards to LDAP or NFS that I am unaware of? Shouldn't it just be using the same authorization as SSH or a terminal login? Thanks, Christopher Tooley ctoo...@uvic.ca Systems, HEP/Astronomy UVic
Re: Graphical login + ldap (+ NFS?) problems :)
You need to set the GDM/KDM to login using LDAP authentication instead of local. Install the ldap admin modules and use them to set it up. (Sorry, can't be more specific, it's a long time since I did it on RH/Fedora) On Thu, 2011-09-08 at 09:20 -0700, Christopher Tooley wrote: I have the option to do LDAP with a centralized server, and I would like to do so. I use NFS mounted home directories (NFSv3). I have installed SL6.1 and it works great. I know I have successfully set up LDAP *and* NFS, because I can log in remotely with SSH as well as on a terminal. However, when I try to log in with GDM or XDM, it will accept my password, black out the screen, and then return to either GDM or XDM. I *can*, however, log in with a local account.
RE: Standard Mpeg-1 Video player
On 09/06/2011 03:14 PM, Jordan Dean wrote: Has anyone found a player / codec that is in the standard SL repositories that will playback mpeg 1 encoded video. (Totem does not have the codec in the two sets of gstreamer plugins that are provided). Thanks, Jordan Dean Can you provide a link to an example mpeg-1 encoded file to test? On SL5.6 we use VLC. yum --enablerepo=dag install vlc -- Best regards, Robert FRANCHISSEUR Is Dag's repo considered a standard SL repo? Christopher Tooley ctoo...@uvic.ca Systems, HEP/Astronomy UVic For my purposes, the only thing that would be considered standard would be specifically from the SL repos, we would also use the same thing on our TUV machines. It appears however that this is not possible due to concerns about mpeg-1 licenses / licensing. We'll just figure out what we want to do instead, I was hoping that I was just missing something. -Jordan
RE: Standard Mpeg-1 Video player
On Thu, 2011-09-08 at 16:11 -0500, Jordan Dean wrote: For my purposes, the only thing that would be considered standard would be specifically from the SL repos, we would also use the same thing on our TUV machines. It appears however that this is not possible due to concerns about mpeg-1 licenses / licensing. We'll just figure out what we want to do instead, I was hoping that I was just missing something. If it's a licensing issue, then you need to have a look at the fluendo.com page and get the licensed version. They do a codec only pack as well as the full package.
