I have a server, running Centos 5 and it is working fine. Now I want to have another server (server2), mirror of my current server (server 1) if any time my (sever 1) stopped responding, (server 2) should start working until I fix server 1.
View 1 RepliesWe have two CentOS 5 servers in production (web and database). We are setting up a single staging server that will mirror the configurations of these servers as closely as possible. What is the easiest way to ensure the exact same software and configs as the production servers are setup on the new staging server. Our contracted data center provider has already informed us that they do not perform images and NO we do not have physical access to the machines. It is undetermined whether we will be virtualizing the staging server into two virtual servers yet, so for the purposes of this post lets assume we are not. I'm seeking a faster/more precise method than doing this by eye and hand.
Some information on our web server code...
I've just set up the local mirror for my 96 CentOS 5 workstations. The mirroring script is taken from public-mirror howto and looks like this:
#!/bin/sh
rsync="/usr/bin/rsync -avHzL --delete --delay-updates" # replaced -q with -v for debuging purposes, removed --bwlimit, added -L to follow symlinks
mirror=centos.politechnika.lublin.pl::CentOS # tried several different same result
[Code]....
I tested mirror consistency by putting the mirror addres I'm syncing with, directly into repo file. Than yumex works fine. I tried several different mirrors with the same result.
I put my slackpkg on the Current mirror, to install all the new sofware, including the new kernel... Now I tried to reboot the system and verify the speed of the all new packages, but KDM don't start! When I call KDM, it shines a little, show the mouse pointer and backs to term. When I call the XDM its a little different, it let me put my user and password, but after back to term too...
View 10 Replies View RelatedIs it possible to setup software RAID on a current production server.
If so how would I go about doing so?
I use Alien Bob's mirror-slackware-current.sh with an excludes.txt to only download the parts of current that I want. Unfortunately it is not working for part of the exclude.txt file and I am at a loss to know why.
The excludes.txt is
Quote:
slackware64/e
slackware64/f
slackware64/kdei/kde-l10n-ar-4.5.5-noarch-3.txt
slackware64/kdei/kde-l10n-ar-4.5.5-noarch-3.txz
[code]...
This ignores e/ f/ y/ testing/ pasture/ source/ and usb-and-pxe-installers/ It also ignores most of kdei/ and /extra It is meant to ignore most of extra/source and just download the source for flash-player-plugin, but it is ignoring all of extra/source/, however the same syntax is working for kdei/ and extra/.
i want install goldendict and source downloaded and i want compile it. for compile i need this packages :
Building under Linux: Make sure you have those dependency packages installed: libvorbis-dev, zlib1g-dev, libhunspell-dev, x11proto-record-dev, qt4-qmake, libqt4-dev, g++, libxtst-dev, libphonon-dev. They can be named slightly different in different distributions
I created a local mirror with a DVD Image, is there a way to get this mirror to 5.4 now?I already updated the updates/extras repo, but now my main-repo is outdated and my updates go wrong.my directorystructure looks like this:
/server/rpmrepo/centos/5]
# ls
centosplus extras os updates
and the os folder:[code].....
I have create a LVM volume in mirror 1 method, with two hard drives, In that one disk is get failed. How can I manage the data availability and also what I need to do next?
View 3 Replies View RelatedI've got a new server built, shaken down and patched (2.6.18-194.el5). Works nicely.
I don't want to rebuild it from scratch if the root drive goes belly up, but I do NOT have a hardware raid controller.
The root disk should be pretty static at this point... any suggestions how I might back it up?
I was thinking I could put in another disk (same size or bigger) and use cron to run something like this nightly: dd if=/dev/sda1 of=/dev/sda2
I am trying to create a local mirror/repository for CentOS 5.6 for updates and network installs. I have read the page here on the site about how to do it over and over again, and I still can't figure it out. I have already created the directory, but right after that, I can't go any further. I know this is much easier than I probably think it is. Would someone mind telling me, (in beginners terms) on how to do this? I just want the 'os' package and nothing else.
View 1 Replies View RelatedI am Setting up 3 HP Proliant servers with 2 250GB Hard Drives in each. How Do I mirror the drives, and link all the servers together??? I am installing Centos 5.3. From the software install menu I installed Gnome, and the Server software, but can't seem to figure out how to get into the server side of it from gnome. Sorry for all the questions, but I have been out of the loop of all this for about 8 years and trying to re-learn everything.
View 4 Replies View RelatedI recently setup a software RAID1 with two hard drives for testing. I manually unplugged one hard drive to test redundancy and it was fine. I then did the same to the second and plugged back in the first and it was fine. But when I plugged both back in it is only loading one of the mirrors instead of both. I am guessing when the mirror (failed), at least as far as the system knew it removed it from the load sequence to prevent data corruption... how do I go about re-enabling it?.
cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sdb1[1]
[code]....
I have 2 servers each one with a RAID and I want them mirror they data so if one of them goes down the other one take the job with out disruption. I've heard of multipath by I want to know it in detail or learn of more options.
View 2 Replies View RelatedI was puzzling over the nss dependence problem that people are having in upgrading 5.2 to 5.3. The issue is clear (that the mirror people are using for [updates] is not pointing to the latest set when an uptodate mirror may be being used for your [base]). My question is though how the mirror list decides whether a mirror is fresh. According to [URL] then this mirror [URL] is "green" which presumably means that the system thinks it is up to date (last probe was 1 hour ago). However if you look at the files on the mirror now (12:54 BST, Apr 1 2009) you see that the date of the 5/ branch is 24-Jun-2008. Thus this host is not ready to give you updates to 5.3. Is this a bug?
View 2 Replies View RelatedI am using LVM2 Clustering to mirror logical volumes between 2 different storage arrays ( iscsi target hosts). Everything is up and running fine, but I would like to be able to monitor the status of the mirror(s), and "re-sync" them if necessary.
I have attempted the locate the information from Google. From what I have read, lvdisplay -v should tell me whether the mirrors are in sync, but it either is not, or I am simply miss reading it. I have come also across information stating lvchange -m [ 0 | # ] should be used to add or remove mirror copies. Is the is correct / only way to "resync" a mirror, in the event that I can determine the mirror is actually out sync?
For those who are familiar with Symantec's VERITAS volume manager, I am looking get the equivalent information related to plexes from vxprint, the equivalent function from /etc/vx/bin/vxreattach -br, and the progress information from vxtask list. I hope the information is currently "search challenged", or I am simply not fully comprehending what I have found.
After reading a lot of docs, I'm still having problems using wget to download a Centos repo from a mirror. Here's my best attempt so far:
$cd /repos/centos/5.4
$wget -r -nH --cut-dirs=3 -np [URL]
Of course I get all the unwanted index files etc, but I seem to get a lot of other downloads from the mirror, not just their 5.4 directory. It's like it's following other links on the web pages. Maybe I should be using "ftp://" instead of "http://" considering it's an ftp site, but I seem to have connection problems that way.
We are using Linux as our database server and Microsoft Sever 2008 as our file server. Both are on independent servers. We would like to be able to mirror each server on the other for disaster recovery purposes. I am completely new to Linux.
View 3 Replies View Relatedsince yesterday, this domain has been painful slow and the only fix is removing it from /var/cache/yum/updates/mirrorlist.txt the last straw was about an hour ago, when 10kb/s was the max bandwidth and I had to download perl and glibc * glibc-common it would have taken over an hour. once removed from updates/mirrorlist the other mirrors picked up the slack and I was back in business,
View 1 Replies View RelatedSo everytime i try and use the "yum" command. for some reason it doesn't go past this point: "loading mirror speeds from cached host files". i cleaned up the cache and rebuilt the OS again, and im still getting this problem. would this be a problem with my internet connection? I'm using CentOS 5.5.
View 1 Replies View RelatedI'm running Red Hat Enterprise Linux ES release 4 (Nahant Update 6).
I've created a mirror of a Logical Volume with this command:
# lvconvert -m1 --corelog /dev/datavg/data /dev/dm-16
Now I've this:
# lvs -a -o name,copy_percent,devices
LV Copy% Devices
data 100.00 data_mimage_0(0),data_mimage_1(0)
[data_mimage_0] /dev/dm-11(0)
[Code].....
My goal was to remove devices dm-10, dm-11 and dm-14 from my VG, so I decided to extend the VG with dm-16 and mirror my data LV to that device, then split that mirror from the other devices. The FS is mounted and need to stay online...
Im using Ubuntu 10.4 LTS. New user. Looking for a CRM that is comparable to ACT, BCM that is in MS Office, or Sugar like that does not require a server. Need something light for stand alone CRM.
View 1 Replies View RelatedServer A is running Centos 5.5, Server B is running Centos 5.5.What is the simplest way to grab the package list from Server A, and use yum/rpm to make sure that the same packages are installed on server B, and if not -- install them?
View 1 Replies View RelatedI am building a new server to replace a MAc server. I want to use CentOS. I don't know how to view the software in the ISO's; I don't know what version I will need to get these versions:
Apache 2.2.8
MySQL 5/0.45
PHP 5.2.5
I have posted this in the CentOS forums. But I need an answer ASAP.
I have got an Notebook whose CPU is 64bit.The Notebook has an CentOS installation. Now I want to find out if this CentOS is 32bit or 64bit.How can I check this?
uname -a
gives something with ....i686 i686 i386...."
What does that mean?Does that refer to the hardware or the CentOS OS? An 32bit CentOS can be installed on a 64bit hardware!I am interested in the OS capability not of the hardware!
My requirement is to install Ubuntu SERVER 8.04.3 LTS on a Dell 2550 machine.
Problem.
- Bug in ubuntu (desktop and server) stopping CD install on this hardware platform. It hangs half way through and is something to do with the SCSI CD drive. Lots of stuff on the net about it, but no fix as far as I can see, at least nothing that works for me.
- So, tried boot off CD and then used F6 and added a cdrom-detect/try-usb=true line together with putting a USB with the ISO burnt onto it in the USB port. Still hangs during install (can't see USB perhaps? USB not correctly burnt? Tried many many times though, and eventually gave up at 2am)
- Next tried PXE boot. Now getting somewhere. Ok I installed tftpd32 on my windows machine, and copied the netboot files from the ubuntu site to the tftpd directory. (I dont think this will help me install the server, just the desktop??) Anyway, it booted from the win tftp machine (wahey!), and went through install, BUT when it tried to find the mirror site it couldnt. In fact it couldnt find ANY mirror site. (Internet access from windows and all other PCs on the network is working fine).
So, to ensure I am installing the SERVER version, and to use PXE boot, and to NOT use the internet to download the files (i.e. load them up locally somewhere), what do I do?
I have a remote drive mounted on my system(ubuntu 10.04 x64), and i have the contents of that drive backed up to dropbox. the problem is, if i unmount the drive, the files disappear from dropbox. is there a way to mirror the contents of the network drive to a localfolder(preferably in such a way that all changes and file deletions are changed on the local folder instantly, but unmounting doesn't delete it all)? It looks like rsync would work, but im not sure how to make it work.
View 2 Replies View RelatedI am currently running Debian on a system with 3 scsi hard drives with Raid and have an identical back up server. I want to schedule a daily "mirror" copy of the server operating system and data so that if the primary server drops I can move the network plug to the next server and be back in business. Can someone let me know what would be the best solutions for this? I am new to linux so this may be an obvious question so if it is I applogize but I have been searching through the forums and have not found an adeqate solution.
View 1 Replies View RelatedI am looking for a solution to mirror a directory on my companys computer that runs in windows to an external ubuntu server on the internet.
View 7 Replies View RelatedI'm new here and hope to profit from your immense linux knowledge and of course to share my own experience where I can.
I'm in a student organization and we use a file server that runs linux. I can log in through ssh and copy using scp using login and password (no rsa/dsa keys because most users are windows users using winSCP and they're lacking in computer knowledge so we don't require them to mess around with keys)
However, I don't have network access everywhere, so I'd like to make a copy on my laptop harddisk of some of the folders I use most frequently. Note that I don't need it to copy files from my pc back to the remote server so I don't need two-way sync. Deleting the local copy every time and downloading a new full copy is not an option as we are talking about several gigabytes and the download speed is limited. Normally I would use Unison, however, this requires unison to be installed on both pc's and I can't install any software on the file server so this is not an option.
Any ideas on how to achieve this? I'm reasonable knowledgable about linux so I don't mind tinkering with some config files and using command line applications.