similar to: dhcp fail over

Hi, Has any one had problems with mail clients were your DNS is like this; doman.com MX 50 mail.domain.com domain.com MX 100 mail2.domain.com domain.com CNAME www.domain.com -aurf

Hi all, I noticed that my ssh logins to a particular server were taking up to 5 seconds to finally login. My tcpdump -vv weren't producing much output (not good) and my pings to and from that host were normal and almost identical to other hosts on my subnet that had no ssh login delay issues. Log files also showed nothing alarming. My hosts file was missing this at the very end of

Hi all, I'm migrating from my Cent 5.x LDAP server to Cent 6.x. But wondering if there are any advantages to the Directory Server package itself? Been using regular old LDAP server for years now. I manage it both via Webmin and command line as well as some tweaks to a Drupal module. The fail over has always sort of bothered me as the secondary LDAP servers pull vs being pushed to, at

Hi, I've been using qemu-img resize for a few days now, seems fine. But if I du the VMs image file, it still shows the size before resizing. Inside that VM, the new size shows correctly. Is qemu-img resize the right tool for this? Once I qemu-img resize, I then use various fdisk/ LVM tools, etc... to resize within the VM just incase you all were wondering. - aurf

Hi all, Don't mean to double post as I sent this to the general Centos list. But, does any one have 802.3ad (mode 4) working on there Centos6 KVM setup? This would be a bridge+bond setup of course. If not possible, would I still bond the interfaces on the switch and then bond them in the guest rather then from within the hypervisor? - aurf

Hi, I'm VNCing into my KVM server and opening virt-manager. When trying to manage a newly created guest, I'm finding the mouse pointer stays on the outside of its virtual machine window. Any insight as to why its tracking so oddly? Thanks in advance, - aurf

Hi, Wondering if this is the proper bridging technique to use for Centos6+KVM; http://wiki.centos.org/HowTos/KVM Before I embark on this again, I would like to do it by the book. Thanks in advance, - aurf

Hi all, I've a particular host on my network that when I run; rexec -l username -p password remotehost command it just hangs. When I do; rexec -a -l username -p password remotehost command i get; Where are you? If I do; rexec -l username -p password localhostname (not just localhost but its actual name) command it works. Any ideas would be very appreciated. - aurf

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, This topic is one that I am ignorant on and appreciate any guidance. My scenario; I have a wild card SSL installed on one of my CentOS boxes. As I understand it, this server was used as a sort of master when originally generating and receiving the wild card SSL cert (got the cert from GoDaddy BTW). So, now I must export some file(s) from that server so that I can import it/them to

Hi all, I've been running rsync via cron for a while now and all is well. However on one particular new 5.5 box, whenever its runs via crontab, the machine ends up with over 20 rsync processes and a load of ~14 and eventually the machine dies. But when running manually, I see it spawn 3 processes with a load of 1.5. My rsync command is simply; rsync --delete -avvH --progress source

Hi all, I am migrating my Xen guests over to KVM. Does any one know were I can find said 5.1 kernel for download? - aurf

Hi all, is any one aware quotas not working in 5,5? I'm using XFS as a file system. My fstab has the appropriate usrquota,grpquota but when I try to run; quotacheck -cug /foo I get; quotacheck: Can't find filesystem to check or filesystem not mounted with quota option. I already have a large amount of data in the mount. Do quotas get implemented on only empty filesystems and

Hi, I found 2 identical drives lying around and put them into a system. When booting from a Centos 5.x installer, and when being presented with the formatting option (disk druid), it says I have 1 volume of; mamapper/isw_bdihgcgahe_Volume0p2 I can't seem to get rid of it. I have 2 physical disks but disk druid is seeing 1 volume thats the same size as one of the 2 identical drives.

Hi all, Taken from this link; https://www.centos.org/modules/newbb/print.php?form=1&topic_id=34988&forum=55&order=ASC&start=0 Seems like I am having the same issue. I assigned my boot loader to be on /dev/md0 rather then the default of /dev/sda1 Does any one have insight to this? Thanks in advance. BTW, I have no swap partition and will do a swap file instead, easier to

Hi all, I never really paid attention to this but a file on an NFS mount is showing 64M in size, but when copying the file to a local drive, it shows 2.5MB in size. My NFS server is hardware Raided with a volume stripe size of 128K were the volume size is 20TB. My NFS clients are the same distro as the server being Centos. Is this due to my stripe size? Nuggets are appreciated. - aurf

Hi all, Read many posts on the subject. Using 802.3ad. Few problems; Cannot ping some hosts on the network, they are all up. Cannot resolve via DNS which is one of the hosts that I cannot ping, internal nor external DNS hosts. Unplugging the NICS and plugging them back in will then not allow pining if the default d=gateway. When cold booting it somewhat works, some hosts are pingable while

Hi all, I read that XFS now has a max journal size of 2Gb rather than 128M. Is this correct? Thanks in advance, - aurf

Hello again, Been an interesting day. I'm attempting to use parted to create a partition on a 28TB volume which consists of 16x2TB drives configuired in a Raid 5 + spare, so total unformatted size is 28TB to the OS.. However upon entering parted, and making a gpt label, print reports back as follows; Model: Areca ARC-1680-VOL#000 (scsi) Disk /dev/sdc: 2199GB Sector Size

Hi, I ran gemu-img on a VM thinking it was down but in fact it was live. I rebooted the VM and it does show the added space after running pv/lv etc to resize the disk, also the KVM server if you will, also shows the correct new size of that particular VMs raw file via du. However the virtual machine manager still shows the disk size of that VM as being before the resize. Is there a way that I