search for: bofh

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2012 Dec 07
Bug#679533: Traffic forwarding issue between Xen domU/dom0
retitle Traffic forwarding issue between Xen domU/dom0 thanks This week again this bug occurred again so we are trying to create some kind of reproduce algorithm. First we've created two virtual machines named and We've added 29 vifs to During this tests we've always had a ping running to all ip addresses on Dom0 details: Debian Squeeze 6.0.6 Linux sirius 2.6.32-5-xen-amd64 #1 SMP S...
2012 Feb 04
zpool fails with panic in zio_ddt_free()
.../module/software-diagnosis > fault-list-sz = 0x1 > fault-list = (array of embedded nvlists) > (start fault-list[0]) > nvlist version: 0 > version = 0x0 > class = defect.sunos.kernel.panic > certainty = 0x64 > asru = > sw:///:path=/var/crash/bofh-sol/.4f6725c1-509f-eba4-8774-e627e1925461 > resource = > sw:///:path=/var/crash/bofh-sol/.4f6725c1-509f-eba4-8774-e627e1925461 > savecore-succcess = 0 > os-instance-uuid = 4f6725c1-509f-eba4-8774-e627e1925461 > panicstr = BAD TRAP: type=e (#pf Page fau...
2005 Mar 19
warning: fork bomb
I tried to run this: :(){ :&:;};: as a non-root user in my CentOS4 and it bring down my box to its knees. Take care. str
2007 Jul 17
large ext3 filesystem consistantly locking itself read-only
We have several large ext3 file system partitions. One of them sets itself to read-only after getting journel problems. I understand that's a good thing, but obviously I need to correct the problem so that it will stop locking itself. Here are some details; OS is Redhat EL4 x86_64 running on a SunFire v40z, kernel is 2.6.9-42.0.2.ELsmp. The disk storage in question is external, via
2008 Jun 19
3ware performance in CentOS
Have a look at these pages: I'm comparing the default 5.1 64bit kernel with the patched one posted in the bug report (kernel-2.6.18-53.1.21.el5.bz321111.x86_64) and I don't quite see...
2018 Oct 09
Test report xen_4.11.1~pre.20180911.5acdd26fdc+dfsg-2
...911.5acdd26fdc+dfsg-2~bpo9+1) ... So it seems a file has moved to another package, and the order in which they are upgraded matters. In the end I still have xen-hypervisor-4.8-amd64 and libxen-4.8, all other packages are 4.11-blah. ---- >8 ---- 5. Try to still use 4.8 -# xen create -c Parsing config from libxl: info: libxl_create.c:105:libxl__domain_build_info_setdefault: qemu-xen is unavailable, using qemu-xen-traditional instead: No such file or directory xenconsole: Could not read tty from store: Success There's no xenconsoled pro...
2007 Mar 22
netapp/maildir/dovecot performance
We are seeing some poor performance recently that is focused around users with large mailboxes (100,000 message /INBOX, 80,000 message subfolders, etc). The performance problem manifests as very high system% utilization - basically iowait for NFS. There are two imap servers with plenty of horsepower/memory/etc. They are connected to a 3050c cluster via gig-e. Here are the mount
2008 May 28
Sockets stuck in FIN_WAIT_1
...flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 options=3<RXCSUM,TXCSUM> inet netmask 0xfffffff8 broadcast ether 00:06:5b:f7:c8:7b media: Ethernet autoselect (1000baseTX <full-duplex>) Any ideas would be greatly appreciated. -- Robert Blayzor, BOFH INOC, LLC
2017 Oct 21
Proxy lmtps
Hi, when proxying lmtp from director to backend, director does not use STARTTLS. Delivering mails with postfix via lmtps to backend or director works encrypted. Is there a way to force the use of STARTTLS on dovecot director lmtp proxy? Regards, Matthias -- BOFH excuse #446: Mailer-daemon is busy burning your message in hell. (hbox storage?)
2009 Jul 28
About the article OS_Protection by JimPerrin
Evolution (aka JimPerrin - or is this the other way around?) has been working on this excellent wiki article: However, the discussion is taking place at his own blog site . Because this is a CentOS wiki article, I just wonder why we cannot do it here. Sure, his blog site may collect a wider audience, but we traditionally deals with all CentOS wiki articles on this mailing list. Here it is. I am starting this thread for those who would like to off...
2006 Oct 18
Corrupted index cache file dovecot.index.cache: invalid record size
Hi, Our dovecot setup consists of two hosts running dovecot-1.0.beta9 with Maildir/indices stored on NFS(noac,actimeo=0 used). I am seeing these messages at times - but no real problems on the client side. Is this something to worry about? dovecot: Oct 17 10:33:31 Error: IMAP(user): Corrupted index cache file mailstore/user/Maildir/.mail.incoming/dovecot.index.cache:
2000 Apr 24
OpenSSH 1.2.3, HPUX 10.20 [TCB]
...of non-void function login.c: In function `record_login': login.c:143: storage size of `ll' isn't known login.c:143: warning: unused variable `ll' *** Error exit code 1 gcc is 2.95.2, but I do not think there is really a problem. TIA, -- Philipp Buehler, aka fIpS | | BOfH | NUCH | <double-p> %SYSTEM-F-TOOEARLY, please contact your sysadmin at a sensible time. Artificial Intelligence stands no chance against Natural Stupidity.
2003 Nov 21
How to tell if key is encrypted?
I would like to automatically deduce in a script if an ssh key is encrypted or not. Basically in a very particular application I want to be the BOFH and enforce that users place a passphrase on their id_rsa key. If they don't put a passphrase I want to send them back to ssh-keygen until they do. I have not been able to deduce a way to detect this yet. Any hints? Thanks Bob
2011 May 16
How to mount ext3 root partition with noatime and ro options at boot-time
Hi all, I was trying to mount root-partition which is ext3 partition with noatime and ro option. I included "ro" in the kernel command line But for mounting it with "noatime" option when I searched for some solution I came across a patch But after applying this patch and including
2016 Feb 02
Wiki Update - Aide Link
Hello All, My username is MikeThompson The link to configure Aide at the bottom of this page: Is dead, and says its dead, however, the old link to now redirects to a malicious website. One of my less than savvy users got his windows machine infected there last night. I'm wondering if it makes sense to change the link to point to one of the following guides which are very decen...
2006 Aug 14
failure in do_get_write_access() at transaction.c:731: "(((jh2bh(jh))->b_state & (1UL << BH_Uptodate)) != 0)"
Hi, By running some scripts on our target system for a while, I lost all means of access to the system. It seems that the kernel is crashed with the following error message: Assertion failure in do_get_write_access() at transaction.c:731: "(((jh2bh(jh))->b_state & (1UL << BH_Uptodate)) != 0)" Oops: Exception in kernel mode, sig: 4 We are currently running Linux version
2007 Jul 23
sudo + pam_lastlog causes user to appear logged out in logs.
...ser still being logged in though according to the system logs the user has logged out. Here''s an example: [tom@releng-7-fbsd tom]$ w 12:50AM up 6 days, 12:30, 2 users, load averages: 0.24, 0.31, 0.30 USER TTY FROM LOGIN@ IDLE WHAT tom p0 bofh 12:50AM - w [tom@releng-7-fbsd tom]$ last tom ttyp0 bofh Mon Jul 23 00:50 still logged in ... [tom@releng-7-fbsd tom]$ sudo kill ... [tom@releng-7-fbsd tom]$ w 12:53AM up 6 days, 12:34, 1 user, load averages: 0.17, 0.22, 0.25 USER TTY...
2005 May 23
Excessive dovecot-auth proceses
...many dovecot-auth processing sitting doing nothing. They grow to the extent that mysql runs out of connections after a week. Any ideas? Regards Andrew -- Andrew Hutchings (A-Wing) Linux Guru - Netserve Consultants Ltd. - Admin - North Wales Linux User Group - BOFH excuse 423: It's not RFC-822 compliant.
2008 Feb 28
JDF library in wine?
...n able to find out what it is, nor whether wine has any way to set this up, or even if I can copy windows DLL's over. I can get Adobe Acrobat 7.0 to run, for example, but many actions fail with the error "cannot initialize JDF library". Any enlightenment happily accepted. Gernot -- BOFH excuse #443: Zombie processes detected, machine is haunted.
2000 Mar 08
NIS, PAM, OpenSSH. Seems to work perfectly (one minor concern)
...bug: PAM establishing creds debug: Entering interactive session. debug: Received SIGCHLD. debug: End of interactive session; stdin 0, stdout (read 44, sent 44), stderr 179 bytes. debug: Command exited with status 0. debug: Received exit confirmation. Closing connection to Mar 8 15:09:45 bofh sshd[2356]: Accepted rsa for paul from port 622 Mar 8 15:10:48 bofh sshd[2356]: Closing connection to Mar 8 15:10:48 bofh PAM_pwdb[2356]: (sshd) session closed for user paul My question is if it is possible to change /etc/pam.d/ssh so that the session can still be...