similar to: ext4 in CentOS 5.6?

Hello, I've been using rsync on some backup servers for years. In 2011 we had a situation where the FS of the backup server was behaving strange, even thou there was enough available I/O, the fs(ext4 on 16TB partition with a lot of inodes) was lagging. After much testing we found that rsync was hammering the fs too hard. At that point I patched rsync to add a stupid option which will sleep

Hello guys, I saw that a few days back there was a talk about encorporating the ksplice toolchain into CentOS and creating rebootless upgrades to the CentOS kernel. I'm really interested in helping for that. Where/how we can start work ? Best regards, Marian Marinov -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type:

Hi, to prevent scripted dictionary attacks to sshd I applied those iptables rules: -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -m recent --update --seconds 60 --hitcount 4 --name SSH --rsource -j DROP -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -m recent --set --name SSH --rsource And this is part of logwatch: sshd: Authentication Failures: unknown

Not sure where to start on this. I went to examine a log file today and noticed a password protected internal file was being accessed from 16.0.0.0. Upon further review every log entry has the same IP. Accessing apache from localhost also reports 16.0.0.0. Google is not being my friend right now, any advice? Kernel: 2.6.9-89.0.29.Elsmp In the chroot: httpd-suexec-2.0.52-41.ent.7.centos4

Hello All I have a brand spanking new 40TB Hardware Raid6 array to play around with. I am looking for recommendations for which filesystem to use. I am trying not to break this up into multiple file systems as we are going to use it for backups. Other factors is performance and reliability. CentOS 5.6 array is /dev/sdb So here is what I have tried so far reiserfs is limited to 16TB ext4

Hi all, Can I ask if zerofree or resize2fs could also be applicable to ext4? Guestfish help of these two commands indicates that they are applicable to ext2/3. But ext4 is not covered in the help. However, I have tested these two commands in my Fedora 12 laptop, and it seems that both commands work well with ext4. So I don't quite understand why the help of these two commands only mention

Dear all, I would like to forward a port to an internet server, but failed. can you help me? Server: eth0: 192.168.1.250, Port: 8080 TCP, CentOS 5.6 Remote server: IP: a.b.c.d Port: 8181 Forward path: client1(192.168.1.10) -> 192.168.1.250:8080 (forward) -> a.b.c.d Port: 8181 ----------------------------------------- In Fedora, I successfully to config the firewall using

Hello guys, we have done some progress on the new web site project. We need your comments for the design of the front page. We have 3 proposals or the design of the frontpage. Please look at them, we need your help :) http://qaweb.dev.centos.org/websitever2/ Best regards, Marian -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type:

Hello everyone, Im having a issue that I just cant seem to figure out. We currently are running an email server Centos 5.6 Postfix/Dovecot with a squirrelmail frontend. I was setting up a testbed to do a migration to SoGo using LDAP/MYSQL/POSTFIX/Dovecot. I have everything up and functional but one thing is giving me an issue. The testbed box will not handle a users mailbox over 2gb. We are using

Hi all, I've a 30TB hardware based RAID array. Wondering what you all thought of using ext4 over XFS. I've been a big XFS fan for years as I'm an Irix transplant but would like your opinions. This 30TB drive will be an NFS exported asset for my users housing home dirs and other frequently accessed files. - aurf

Hi all. i'm trying to modify some parameters but when system reboots it doesn't load. For the sysctl if I run sysctl -p then it changes /etc/sysctl.conf net.ipv4.netfilter.ip_conntrack_max = 1048576 /etc/modprobe.conf options ip_conntrack hashsize=131072 after reboot results cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max 65536 cat

Hello, I've got apache running on a centos 5.6 machine. All of my users have a umask of 077 set in /etc/bashrc. I'm now wanting to give several of them permission to write to a web area so they can place content visible to the web server. I've got two groups webdev1 and webdev2 which I want one to be able to write to site1 and the other to site2. I've got between 3 and 5 users in

mkfs.ext4 fails to create 38TB file system on CentOS 6.4 64bit with this error: mkfs.ext4: Size of device /dev/vg02/vtapes too big to be expressed in 32 bits using a blocksize of 4096. More details follow: # uname -a Linux tzbackup 2.6.32-358.18.1.el6.x86_64 #1 SMP Wed Aug 28 17:19:38 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux # fdisk -l /dev/sdc Disk /dev/sdc: 41996.7 GB, 41996727091200

Hello all, Years ago, I used to work with tripwire for system monitoring. Last time I checked with "yum search tripwire", there is no hit. IIRC, it used to be packed by default on older Redhat distros. Any suggestion for an alternative of tripwire for my CentOS 5.6? Cheers, -- ********************************************************************** Viet Nhat General Joint Stock

I recall a kernel parameter on Unix System V of number of mounted file systems. Max recommended was 8. Larger numbers slowed down inode location and impacted performance. Has Linux solved that bottleneck? Are 20 or 30 mounted efs and cifs file systems on one system OK? -- M Reynolds McClatchey Jr VP Engineering and Inventory Southern Aluminum Finishing Co Inc 404-355-1560 x222

Howdy, Running a round of updates from 6.3 to 6.4 and I'm seeing the following on all the servers. Want to make sure I'm not going to end up with a kernel panic if I reboot into the new kernel or have any other issues. Apr 22 11:10:21 www kdump: kexec: unloaded kdump kernel Apr 22 11:10:21 www kdump: stopped Apr 22 11:10:21 www kdump: mkdumprd: failed to make kdump initrd Apr 22

I am trying to automatize signing of unsigned .rpm files. My repo has at least 50 x 3 packages. But I would have to type numerous passwords for each file. I can not see hot to pass pass phrase to script. rpmsign --resign {--pass=??} <filename from list> ???? Can someone advise me how to do that? Ljubomir

As part of adding support for OCFS2 to mount huge volumes, we need to check that the sector_t and page cache of the system are capable of addressing the entire volume. An identical check already appears in ext3 and ext4. This patch moves the addressability check into its own function in fs/libfs.c and modifies ext3 and ext4 to invoke it. Signed-off-by: Patrick LoPresti <lopresti at

I was learning about the different FS exists. I was working on systems that ReiserFS was the star but since there is no longer support from the creator there are other consolidations to be done. I want to ask about couple FS options. EXT4 which is amazing for one node but for more it's another story. I have heard about GFS2 and GlusterFS and read the docs and official materials from RH on

Hi, I was wondering what is the current status fro ext4 support in Centos. I've noticed that is marked as dev when I try to use it from the installer. Does anybody have a scary story to prevent using it? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20090902/7ba417df/attachment-0001.html>