How Do I Setup A Ubuntu DomU Guest On A CentOS / Fedora Core XEN Server
Jul 27, 2008
how to install Ubuntu (either 7.10 or 8.04) as a XEN domU guest on a CentOS 5 / Fedora Core 8 XEN dom0 server?
I have tried installing Ubuntu as a fully virtualized guest, but the Ubuntu CD doesn't even bootup. I get the Linux bootloader, and that's it,it doesn't continue to boot. Odd.
When trying to install a Paravirtualized guest, I had to use the debootstrap method, but can't get it to boot up.
Quote:
xm create anya_zanet
Using config file "/etc/xen/anya_zanet".
Error: (2, 'Invalid kernel', 'xc_dom_find_loader: no loader found
')
This is the xen configuration:
Code:
kernel = "/boot/vmlinuz-2.6.23.1-42.fc8"
ramdisk = "/boot/initrd-2.6.23.1-42.fc8.img"
builder='linux'
memory = 256
name = "anya_zanet"
vcpus = 1
vif = [ 'bridge=xenbr0' ]
disk = [ 'phy:/dev/System/anya_zanet,hda1,w' , 'phy:/dev/System/anya_zanet,hda2,w' ]
root = "/dev/hda1 ro"
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
how to get Ubuntu working on a CentOS / Fedora Core XEN server?
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Jun 8, 2007
Whats the Difference between Fedora Core & CentOS?
I think my host installed the wrong OS, but just wondering to see if it's worth changing the OS if they're both the same.
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Jan 28, 2007
i try to install ispconfig panel con my vps fedora core 6
but i see this error
checking for MySQL support... yes
checking for specified location of the MySQL UNIX socket... no
checking for MySQL UNIX socket location... no
configure: error: Cannot find MySQL header files under /usr/local/lib/mysql.
Note that the MySQL client library is not bundled anymore!
ERROR: Could not configure PHP
cd: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
mv: cannot stat `binaries/aps.tar.gz': No such file or directory
mv: cannot stat `binaries/spamassassin.tar.gz': No such file or directory
mv: cannot stat `binaries/uudeview.tar.gz': No such file or directory
mv: cannot stat `binaries/clamav.tar.gz': No such file or directory
mv: cannot stat `binaries/cronolog': No such file or directory
mv: cannot stat `binaries/cronosplit': No such file or directory
mv: cannot stat `binaries/ispconfig_tcpserver': No such file or directory
mv: cannot stat `binaries/zip': No such file or directory
mv: cannot stat `binaries/unzip': No such file or directory
tar: spamassassin.tar.gz: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error exit delayed from previous errors
mv: cannot stat `spamassassin': No such file or directory
tar: uudeview.tar.gz: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error exit delayed from previous errors
mv: cannot stat `uudeview': No such file or directory
tar: clamav.tar.gz: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error exit delayed from previous errors
mv: cannot stat `clamav': No such file or directory
tar: aps.tar.gz: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error exit delayed from previous errors
./setup2: line 860: ispconfig_tmp/php/bin/php: No such file or directory
ERROR: The PHP binary coming with ISPConfig does not work properly on your system! The installation routine stops here!
[root@vps198 install_ispconfig]#
how i fix this problem and install the ispconfig?
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Jun 17, 2008
I currently run a dedicated with redhat 9 and am looking at a new server with either Fedora Core, CentOS, or FreeBSD.
I'd like your opinions on the best o/s to go with overall and also bearing in mind I'm coming from redhat and will be running cpanel on it...
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Dec 22, 2008
Gazzin.com offers so many OSs on their VPS deals - CentOS, Debian, Fedora Core 3, Fedora Core 4, Gentoo, Opensuse, Suse, Unbuntu. Which one would you advise me to start from?
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Mar 8, 2008
I have a server running Fedora 4 and WHM/cPanel. I would like to upgrade the linux kernel to the latest version, so mosey in via SSH and type "yum -y upgrade". It downloads a few things and tells me everything is hunky dory.
Now, the version it says it is currently running is: 2.6.17-1.2142_FC4 #1 Tue Jul 11 22:41:14 EDT 2006
Is that the really the newest version available? Maybe I'm confused as to how this works, but if I go to kernel.org it tells me the most recent stable version of the kernel is 2.6.24.3. Is this because I am running FC4?
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Dec 16, 2008
I'm not a Debian user, so I want some advice how to install Debian 4 as guest OS on top of Centos 5.2 dom0.
Mostly on Google, there's a manual on Centos on top of Debian. I've tried to use the netinstall iso for debian and mount it on /var/www/html/debian and use it for remote install source. So far don't have any success on that.
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Jul 9, 2008
I have a Fedora Core 5 VPS currently running PHP 5.1.6, and wish to upgrade to 5.2 so I can run Magento eCommerce software.
I've managed to install yum, and after running yum update php, it just updates to 5.1.x still
My understanding of it currently is I need to point it to new repositories with 5.2 in?
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Mar 15, 2009
I have been using Linux for the past 3 or so years, either running it for workstations or servers, and now I want to set up a server for Virtualization. I have been doing a fair bit of research about the different ways of doing this, and I have decided to go with KVM. I usually use CentOS, but will have to use Debian to use KVM. I just have a few questions about the best way of setting it up.
We have a pretty powerful server* which we are planning on collocating to a data centre and running web servers from the VMs. Virtualization seems like the best way to allow for simpler administration, and also allow us get the most out of our server's resources.
*Intel Xeon X3230 Quad Core, 8GB Ram, 4x 15k 147gb SAS (RAID 6)
What is the best way to set this up then? I was thinking we could install Debian as the Host/Hypervisor over the whole drive, and give it a 16GB swap partition. Then I guess when the VMs are installed they live on the Debian drive as a file, or do they need their own partitions?
Are the guest OS's capable of using the Host's swap space? Its bad enough losing 16GB as a swap partition to the host OS, but please don't tell me I need to supply the VMs with their own swap partition aswell - im curious as to if the server will ever need to use swap space as it has alot of ram, let alone require extra swap for each VM too?
KVM is still very new, but does anyone know any good books/resources out there? The virtualization books I have seen don't seem to cover KVM, just Xen and others.
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Aug 23, 2008
I asked this question before in the past and I still have to ask it: has anyone used both Ubuntu Server Edition and CentOS? I would like to compare both operating system, in terms of speed, performance, security, and stability.
I have decided to build my new server and use Ubuntu Server Edition 64-bit operating system after using CentOS 64-bit operating system for a bit over a year now.
The reason why I have chosen to use Ubuntu Server Edition is because of the operating system's fabulous reputation among desktop PC users, and its large and helpful support community.
Support is what I need most, and Ubuntu seems to have it. I also am not the best with Linux yet, so it will definitely be needed. Ubuntu also seems to update its software faster than other operating systems.
I hope my decision to switch from CentOS 64-bit to Ubuntu Server Edition 64-bit will not be in vain.
Can anyone compare these two 64-bit operating systems and possibly link me to some reviews, comparisons, and/or benchmark results?
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Oct 23, 2009
I have a linux server that has active clients on it, its running Fedora Core 4 and I beleive its time to upgrade to the latest Fedora Release.
The server is running cPanel, has anyone here done an upgrade to a box running Fedora before? Any tips or tricks?
I'm hoping its a simple attend data center, reboot server with new Fedora DVD, boot off DVD select upgrade and away we go. . .
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Jan 11, 2007
I have a problem with one of the servers since the morning, DNS is down and trying to start it giving failed message.
I'm using Fedora 5
CPanel 10.9.0-S119
named (9.3.3rc2) with installed Packages: bind-9.3.3-0.2.rc2.fc5 / bind-devel-9.3.3-0.2.rc2.fc5 / bind-libbind-devel-9.3.3-0.2.rc2.fc5 / bind-libs-9.3.3-0.2.rc2.fc5 / bind-utils-9.3.3-0.2.rc2.fc5 / binutils-2.16.91.0.6-5
kernel-2.6.18-1.2257.fc5
Error Message:
Quote:
root@server [~]# service named start
Starting named:
Error in named configuration:
zone alexaian-d.com/IN: loaded serial 2006040201
zone al-jan.org/IN: loaded serial 2006073101
named.conf file
Quote:
root@server [~]# cat /etc/named.conf
include "/etc/rndc.key";
controls {
inet 127.0.0.1 allow { localhost; } keys { "rndckey"; };
};
options {
};
zone "alexaian-d.com" {
type master;
file "/var/named/ahmed-d.com.db";
};
zone "al-jan.org" {
type master;
file "/var/named/al-jinan.org.db";
};
rndc: connect failed: 127.0.0.1#953: connection refused
Quote:
root@server [~]# service named status, I'm getting the error:
rndc: connect failed: 127.0.0.1#953: connection refused
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Oct 1, 2007
I have bought a
PowerEdge 2900 Quad-Core Xeon E5345 2.33 Ghz Processor
2GB FB 667MHz Memory
146 GB SAS hard drive
PERC 5/i integrated RAID Controller Card
I have installed Fedora Core 6 on this.But somehow it fails to work.It keeps hanging anytime anywhere.
Can anybody help me know whether this is compatible with each other?
I tried closing some services and work it,but the attempt was in vane.
I have googled alot over this and cant get it worked.
I also tried to install from different CDs,but no luck.
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Sep 12, 2007
i want to install FFMPEG on my server , i tried to install from here http://vexxhost.com/blog/category/ffmpeg/
but i got error in step no. 6 , put in your consideration i didn't do the step no. 5
coz my OS is Fedora core 4.
plz any one have the right way to install , tell me.
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Sep 8, 2007
OKay here is the set up:
I have a CENTOS 64bit running, with 1 guest OS (WinXP) in a VMWare Server. I have tried the following: I have 6 public IP's attached to my 1 Ethernet card in the CENTOS host.
Try 1:
The Guest OS is set to use "Bridged" Networking. This allows full use of the internet, in both directions. Not exactly optimal, but it does work. I can reach the Guest via RD, which is a requirement for this client. The guest OS is mainly assigned one of the 6 public IP's (x.x.x.118). The problem with this setup is the Guest OS can not reach the host. For example the host has a mail server on it, and when the Guest tries to reach the host, it times out.
Try 2:
The Guest OS is set up to use "NAT" and gets 192.168.100.128 as its IP via DHCP inside of VMWare. The nat config file for VMWare is set to open port 3389 (RD port). Guest OS can reach the host with out any problem, and can reach the internet with out any problem, however I can not RD in to the Guest OS.
I prefer setup number 2 for all the obvious reasons, but I just can not get my IPTables rules to work. This is what I thought should work, but does not:
iptables -t nat -I PREROUTING -d x.x.x.118 -j DNAT --to-destination=192.168.100.128
iptables -t nat -I POSTROUTING -s 192.168.100.128 -j SNAT --to-source=x.x.x.118
I realize that would have done all traffic, and defeated the benefits of NAT,but since forwarding only 3389 was not working I tried forwarding everything.
Any suggestions?
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May 10, 2007
I am doing a FRESH install of Fedora Core 6 onto a brand new server. I have 2 questions about partitions on there..
1. Should all the partitions (/home, /backup, /var etc..) be of file system type "ext3?" I could not find any documentation on this anywhere.
2. A question about about LVM (Logical Volume Management). Are you supposed to create a different LVM for each partition? Or just for /tmp?
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Aug 5, 2007
i got plesk 8.2 installed on my fedora core 4 server. I would like to install ioncube & zend optimizer.
Anyone can explain me stepwise how to do..
i read many post on the forum about it but i have not succeded in..
here is the infos of my server system info:
CPU:GenuineIntel, Intel(R) Xeon(TM) CPU 2.80GHz
Version: psa v8.2.0_build82070706.15 os_FedoraCore 4
OS: Linux 2.6.9-023stab033.9-enterprise
Key number: PLSK.00000000.000
component info:
awstats6.6-0.060916beta.swsoft bind9.3.1-20.FC4 coldfusionComponent was not installed coldfusion-supportComponent was not installed courier-imap3.0.8-fc4.build82070706.15 drweb4.33-rh5_psa drweb-qmail4.33-fc4.build82070706.15 frontpage5.0.2.2635-1.fc4.swsoft httpd2.0.54-10.4.1.swsoft mailman2.1.8-0.FC4.1 mod_perl2.0.1-1.fc4 mod_python3.1.4-2 mysql4.1.20-1.FC4.1 perl-Apache-ASP2.59-fc4.build82070706.15 php5.0.4-10.5.1.swsoft postgresql-serverComponent was not installed psa8.2.0-fc4.build82070706.15 psa-api-rpc8.2.0-fc4.build82070706.15 psa-autoinstaller3.2.0-build32070705.20 psa-backup-manager8.2.0-fc4.build82070706.15 psa-horde3.1.4-fc4.build82070706.15 psa-imp4.1.4-fc4.build82070706.15 psa-logrotate3.7-fc4.build82070706.15 psa-manual-custom-skin-guide8.2.0-fc4.build82070706.15 psa-migration-manager8.2.0-fc4.build82070706.15 psa-mivaComponent was not installed psa-mod-fcgid-configurator1.0-13 psa-proftpd1.3.0-fc4.build82070706.15 psa-qmail1.03-fc4.build82070706.15 psa-qmail-rblsmtpd0.70-fc4.build82070706.15 psa-rubyrails-configuratorComponent was not installed psa-spamassassin8.2.0-fc4.build82070706.15 psa-tomcat-configurator8.2.0-fc4.build82070706.15 psa-turba2.1.4-fc4.build82070706.15 rubyComponent was not installed samba3.0.23a-1.fc4.1 spamassassin3.0.6-1.fc4 SSHTerm0.2.2-fc4.build82070706.15 tomcat5.0.30-5jpp_6fc webalizer2.01_10-28
info when doing uname -a:
Linux xxx.xxxxx.xx 2.6.9-023stab033.9-enterprise #1 SMP Tue Dec 5 14:40:57 MSK 2006 i686 i686 i386 GNU/Linux
info when doing php -v:
PHP 5.0.4 (cli) (built: Nov 9 2005 09:19:53)
Copyright (c) 1997-2004 The PHP Group
Zend Engine v2.0.4-dev, Copyright (c) 1998-2004 Zend Technologies
Info when doing httpd -v:
Server version: Apache/2.0.54
Server built: Jul 31 2006 15:02:04
I struggled many times to be able to set up the ioncube & zend optimizer but in vain..
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May 30, 2008
Fedora 9 vs Centos 5? which is good for running a server? Is both more or less the same?
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Apr 13, 2008
I am about to sign up for a dedicated server, and I have three options to choose from... actally, 6 options:
FEDORA C7 BASIC
FEDORA C7 PLESK 8.3
FREEBSD 6.3 BASIC
FREEBSD 6.3 PLESK 8.3
CENTOS 5.1 BASIC
CENTOS 5.1 PLESK 8.3
Which one should you pick and (most importantly) why?
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Jan 1, 2008
for setup and configuration instructions for setting up mail server on a Fedora Core 6 server. I googled it and most of the links are described with steps while installing OS, but i need to configure a mail server on a server where my site is already running.
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Apr 15, 2008
My hosting service doesn't provide Fedora servers anymore, and they offer only CentOS servers.
I'm now a real Fedora expert , and I don't know if I must change to CentOS in the new servers I acquire.
- Does it take too much time to learn CentOS?
- Is CentOS very similar to Fedora?
- Is CentOS more stable than Fedora?
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Jul 21, 2007
I will be dropping my shared-hosting plan and ordering a small VPS as soon as I can decide on which operating sytem to use. It seems that most companies offer the following choices: Suse, Debian, Fedora and CentOS.
I freely admit that I am a full-fledged n00b when it comes to linux and will be learning as I go, the problem is I just don't know where to start because I'm not familiar with any of them. I have at least heard of Suse, Debian and Fedora before, but didn't even know this CentOS existed until yesterday... and yet, it seems to be one of the more popular choices.
So I was wondering if some of you seasoned VPS veterans here could recommend an OS, tell me what the differences are, or otherwise share any experience you might have with any of them.
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Oct 24, 2009
Which OS is better in security and easy to use for vps beginner:
CentOS™, Debian™, Ubuntu™, Fedora™, or Gentoo™.?
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Jul 5, 2007
I've always used CentOS for my servers. But now there's this Ubuntu thing taking off!
Is Ubuntu taking off on the server side as well or is Rhat still king?
Is there a site where I can get % numbers for which distros are most popular (on servers, not desktop)?
(This is as a customer/admin not a hosting provider).
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Jun 22, 2008
I am currently using Ubuntu (debian) server 7.10 for web hosting but see a lot of discussions about Linux centos.
Which linux OS do you prefer for hosting and why....
Just figured I would throw that out there.
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Jan 16, 2008
How can I setup VPS's on my new server?, I want something which is free, can anyone give me some software? for centos
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Mar 5, 2008
I would imagine there's a source for this but google's not yielding much. I'm looking for a CD/DVD ISO that will essentially auto install and configure a linux box with at least SSH access so I can manually install the rest.
I know bluequartz does this, put the CD and the install auto configures pretty much everything. Where would one find one click install discs for either CentOS or debian/ubuntu?
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Jun 22, 2015
My system consist of Ubuntu 14.04 server running LAMP. I am running Apache 2. On the same machine I am running Shiny server and running my apps through port 4949.
[URL] ....
I also am running an additional Shiny server copy on a virtual box through port 3838. All is running very good. I have an html web page running on Apache 2. I can view it and all my apps running on both Shiny servers from any place on the web.
My concern, however is security. I have port 3838, 4949, and 80 open. How can I set up Apache to run as a reverse proxy for my both of my Shiny servers (ports 4949, and 3838) and also continue to host my web page securely.
I have also attempted to set up a self-signed certificate using the following procedure but it is not working. I used the following instructions and followed them verbatim.
[URL] ....
How to set up a reverse proxy for my Shiny servers?
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Apr 28, 2009
i have a CENOTS 5.3 server / i686 with a Q8200 core 2 quad processor,
for some reason when I run
cat /proc/cpuinfo each cose doesn;t report that its running full speed..
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz
stepping : 7
cpu MHz : 1998.000
cache size : 2048 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl est tm2 cx16 xtpr lahf_lm
bogomips : 4668.98
it shows all 4 cores but look at the MHZ, is there something i can do about this to fix this?
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Mar 23, 2009
i have a forum on centos with php and mysql,
im not sure why there are many files like core.2323 or core.2742... in the folder of my forum,
i do not download or upload any files to there,
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Jun 4, 2007
I'm trying to install CentOS 4.4 in dual core 2 box without success, can't even finish installation. Read about a bug closed because it doesn't happen in CentOS 5, thus leaving me no option but to use unstable cPanel 11. Does anyone have any clue about this? Seems strange that there's no workaround.
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