Ubuntu Linux is a Debian derivative that aims to bring Linux mainstream. Questions on this site should generally refer to Ubuntu Server. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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Configuring Postfix to route mail externally for a domain

i have a site running in a amazon EC2 ubuntu instance. My webserver is apache. I am using php mail function to send mails from a contact form. I have installed postfix and used default ocnfiguration. ...
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148 views

External Command Error on VHCS Installation

I have Ubuntu 10.04 LTS (Lucid Lynx) server and i'm trying to install VHCS . I'm following this steps but on last steps of the Configuration Script title i'm executing vhcs2-setup . After last ...
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3answers
2k views

How can I troubleshoot an extremely slow Ubuntu Server?

I have a virtual ubuntu ftp server that is sometimes extremely slow. Connecting via SSH takes forever, it is very slow to run commands, etc. Other times, it runs normally. How can I troubleshoot ...
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4answers
752 views

Apache name based virtual hosts

i am trying to have multiple virtual hosts in apache setup in Ubuntu 10.04. I managed to setup a domain and a sub-domain, jivity.net and sonata.jivity.net using name based virtual hosts in apache2 and ...
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2answers
270 views

KVM 1 cpu core is at 100% while others at 10%-20% load

I don't know what or who is using this amount of CPU, the machine is a bi-quadcore with 16 GB ram. Running Ubuntu 10.04 Every core seems to be using 10-20 % except for one core that seems to be using ...
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2answers
498 views

Can we install Natty package into Lucid?

I'm using Ubuntu Lucid. Due to some reasons, I'm not allowed to upgrade the OS. I need to use the latest version of a software, with version number > 2.5.x. However, when I check the software repo ...
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2answers
1k views

Best way to set JRE_HOME to Sun's Java on Ubuntu 10.04

I installed Ubuntu 10.04 which by default came with OpenJDK. I've since installed Sun's Java 6 using apt-get. When I type java -version I get: java version "1.6.0_26" Java(TM) SE Runtime Environment ...
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1answer
289 views

Configuring mod_security on Ubuntu 10.04

After spending ~24 hours trying and failing to setup mod_security in Ubuntu 10.04 LTS, I've finally decided that I'm going to need some help. I've tried pretty much every tutorial I can find with a ...
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3answers
1k views

How do I setup an Ubuntu Server for KVM Virtualization?

I' trying to setup an Ubuntu Server 10.04 LTS install to host a number of KVM virtual machines to do web development. I tried to install a VM with virt-installer from the CLI but I have to connect to ...
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1answer
67 views

iptable issues?

Currently I'm trying to setup a PXE server to boot Ubuntu 10.04 on clients. (See Issues with PXE setup on Ubuntu 10.04 DHCP/NFS Server for more details) I'm trying to mount basically the entire ...
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1answer
542 views

Where do I set administrator password for phpmyadmin?

I'm trying to install phpMyAdmin on my Ubuntu 10.04 server, by doing 'apt-get install phpmyadmin'. Installer asks me for MySQL administrator password and for phpMyAdmin database user password, but not ...
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1answer
317 views

Unable to configure Sendmail to use Gmail

I gave configured sendmail to use gmail. This is the output which I get but i am not getting the mail. what may be the problem prashanth@prashanth-laptop:~$ sendmail -v *********.*******@gmail.com ...
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3answers
491 views

PHP slow to talk to MySQL on same host

I have a VPS (OpenVZ) running Ubuntu 10.04: nginx 1.0.5 php 5.3.5 mysql 5.1.41 I have installed WordPress on it and noticed in Firebug that the initial connection to index.php takes several ...
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3answers
107 views

Ubuntu 10.04 install is missing /etc/rc0.d, is there a quickfix?

I have no idea how this happened, but /etc/rc.*/ is simply missing. As a result, aptitude and apt-get don't work right anymore. Is there a quick-fix for this? I really don't want to reinstall the OS ...
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2answers
634 views

Squid proxy not working, using Ubuntu Server 10.04 and two NICs. One is connected to WAN and other to LAN

I am trying to setup a proxy server but I am unable to do it. Here is the details of my setup I have one Server(IBM X3800 series) and one Desktop PC. Server is having to network card connected to it. ...
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1answer
2k views

Mysqld.sock doesn't exist

I have a MySQL server running on Amazon EC2 in a VPC instance. I had to change the instance type of it to handle load and when I brought it back up, the socket didn't exist anymore. The file ...
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2answers
1k views

ssh initial prompt hangs for 10 minutes but console login and initial prompt is very responsive - why?

I have been running an ESXi 4.0 server for months with a couple of WinServer2003 and several Ubuntu Server 10.4 VMs. The performance has been impressive on 6GB i7 Asus P6T hardware. Suddenly, a week ...
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1answer
124 views

why i am not able to access Gui panel at 2812 port

I followed this http://fosscasts.com/screencasts/6-System-Monitoring-With-Monit set daemon 20 set logfile /var/log/monit.log set mailserver smtp.gmail.com port 587 username "myemail" ...
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2answers
417 views

Ubuntu 10.04.3 VMware guest - no network access after conversion to older VM format

I created and configured a Ubuntu 10.04.3 VM in VMware Player 3.1.4 and now wanted to deploy it on our VMware server, which is running at version 1.0.4. To do this, I used VMware vCenter Converter ...
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2answers
2k views

Why do I get dependency warnings/errors while removing nginx from Ubuntu?

root@ubuntus:~# apt-get remove nginx-light Reading package lists... Done Building dependency tree Reading state information... Done Package nginx-light is not installed, so not removed You ...
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0answers
447 views

Installing MySQL server 4.1.21 in Ubuntu 10.4

I'm trying to set up a server for some software that requires MySQL 4. The server I'm trying it in runs ubuntu 10.4 server with a current copy of MySQL 5.1. While the people who made the software ...
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2answers
223 views

Running OpenFire as a different user

I have a Ubuntu 10.4 system on which I'm running OpenFire but it currently runs as root. How can I make Openfire run as a different user? Thanks
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1answer
393 views

Does OpenL2tp can through NAT?

I install openl2tp(http://www.openl2tp.org/) in my server, lan ip of the server is 192.168.1.100 and wan ip of the server is 82.103.143.89. i can connect l2tp server in local area network, but i ...
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2answers
217 views

How does the shutdown/start sequence differ between a controlled shutdown and a power loss in Linux server?

What is the difference in the shutdown (and possibly startup) between a power loss and a controlled shutdown (such as a reboot or literal shutdown) in Linux, and in particular, Ubuntu server 10.04 ...
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2answers
1k views

what is the default rate unit in wget?

When I use wget to download a large file, it gives me "56M/s". I want to know if it means 56 megabits per second or 56 megabytes per second. Thanks! Like this: 231,997,440 61.4M/s in 4.0s
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2answers
1k views

Forward an email from command line in Linux

I have email files in my Maildir received with postfix server (Ubuntu). Is there a utility that can forward a selected email file to the specified email address? Something like: cat emailfile | ...
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1answer
400 views

resolvconf dnsmasq issue - system startup leaves blank dnsmasq resolv.conf file

On system start, /var/run/dnsmasq/resolv.conf file ends up being blank. I had expected the resolvconf package to update it with the info from /etc/network/interfaces (dns-nameservers, dns-search). ...
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1answer
229 views

solr is killing my server by taking a lot of resources

I have Ubuntu 9.10 server with 12G Ram/Quad Core/HD 80GB RAID. and i have installed solr lucidworks-enterprise-installer-1.7 on it to index a small database (about 20k articles). once our editors ...
2
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1answer
2k views

Bandwidth monitoring on KVM

Is it possible to monitor/limit bandwidth for KVM guests? I'd like to give people VMs on my server but I want to be careful not to go over my monthly bandwidth limit. The only places I can find that ...
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2answers
348 views

Trigger script on server by e-mail

I want to trigger my python script remotely, but don't really want to expose any Web or other interface, eg. I need some passive way. One of the ways I can think of is by sending e-mail, then server ...
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1answer
274 views

Installed LAMP server and php myadmin, no .my.cnf file

I just installed apache LAMP server along with phpmyadmin to make database editing easier. Now that I've installed everything, I can't find the .my.cnf file that should have been generated. I thought ...
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1answer
110 views

Installing php 5.2 in ubuntu 10.04

I am trying to install php 5.2 following approach 3 from here : http://2bits.com/drupal-planet/various-ways-running-php-52-ubuntu-1004-lucid-lynx.html But when i come to the step where i had to ...
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2answers
237 views

Xen kernel will not boot after upgrade to Ubuntu 10.04

We upgraded our Ubuntu with Xen to 10.04 after the upgrade it will boot into the regular ubuntu, however it will not boot into the Xen (3.3) kernel. Our output : What we tried : increase ...
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3answers
615 views

RESOLVED Why does IPtables's NAT stop working when I enable the firewall's third interface?

On my firewall I've three interfaces : eth0 : public IP (46.X.X.X.) eth0:0 public IP (46.X.X.Y.) eth1 : public IP (88.X.X.X.) eth2 : private LAN (172.X.X.X) I've setup a basic NAT which ...
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2answers
5k views

Multiple “ServerName” per VHost?

In Apache2 is it possible to set multiple ServerNames in one VHost? I want to setup a "wiki" vhost for an internal wiki. My network has a ".lan" suffix. How do I get Apache to answer both "wiki" ...
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1answer
123 views

hostname and hostname -f are backwards?

When I run the command hostname (on Ubuntu 10.04 LTS Server) it returns 'mail.mydomain.com' When I run hostname -f I get 'mail' as a response. These seem backwards to me, shouldn't hostname -f ...
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2answers
708 views

Server Dropping all Connections Randomly and Packet Loss

I just built a server using a Supermicro X8DAH+-F board and running Ubuntu 10.04 Server 64bit. This has the Intel 82576 dual port controller (one port is disabled). Since this is a server, remote ...
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1answer
491 views

IO and bus errors on Ubuntu Server

I've got an old computer running Ubuntu Server 10.04, which acts as router, file server and web server. A couple of weeks ago I inserted a PCIe video card, since the motherboard did not have any video ...
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1answer
462 views

How to protect Ubuntu 10.04 in the face of power cycling?

Disclaimer: I am no Linux guru. I would describe my competency in linux as "passing" at best, meaning I'm comfortable using the command line, but still rely very heavily on the man pages/forums to ...
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1answer
168 views

TMPFS Available space does not equal Size of drive

I have a quick question. I have a 64bit Ubuntu 10.04 server with 24GB of RAM and is used as a VMWare Workstation 7.1 host. I would like to use an in-memory drive for the VM Memory location, which I ...
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1answer
253 views

web application can't connect to database

I have a web application which accesses MySQL using Hibernate as a JPA provider. Though all is well on my development rig, once I deploy the WAR to my server I get the following error: ...
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1answer
185 views

Disabling script execution on Apache2

On a ubuntu-10.04 and Apache2 I am trying to disable PHP execution on /var/www/upload directory. So I've added the following to /etc/apache2/sites-enabled/000-default: < Directory ...
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1answer
158 views

Solr could not index my table from mysql

I have ubuntu server and mysql version 5.1.41-3ubuntu12.10-log. i need to run solr on my webserver. i have installed lucidworks-enterprise-installer-1.7 and mysql-connector-java-5.1.17-bin.jar on the ...
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2answers
183 views

routing calls from landline to end user cell phones

I have to setup a server to route telephone calls coming to a particular landline no to cell phone phones depending upon the availability of user. I want to know what technology call centres or ...
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2answers
5k views

ldapadd/ldapmodify: clarifications needed about these comamnds

The ldapmodify man page states that: The default for ldapmodify is to modify existing entries Yet when I try to import an LDIF file with ldapmodify I get the below error: ldapmodify: modify ...
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1answer
5k views

ldap_add: Constraint violation (19)

I'm having issues importing users with ldapadd and ldif files. The error I'm getting is: ldap_add: Constraint violation (19) additional info: structuralObjectClass: no user modification allowed The ...
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1answer
151 views

Copy from remote computer to local computer SSH (Ubuntu Server 10.04)

scp filename user@ip_address:/location will copy a file from my local computer to a remote computer... However I need to copy a file from the remote computer back to the local computer. Is there any ...
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1answer
127 views

Odd Postfix message right before system crash/freeze. What does it mean?

I just had my web server lock up on me, it stopped serving pages and wouldn't accept any SSH connections. I was able to reboot this server through the control panel Linode provides. Below you'll see ...
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1answer
341 views

OMSA on Ubuntu Server 10.04

I have Dell OMSA installed on a PE1850 running Ubuntu Server 10.04 (using these instructions, pretty strait forward: http://ubuntuforums.org/showpost.php?p=2336772&postcount=54). However when ...
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3answers
1k views

Convert an ext4 partition to ext3 without formatting the HDD

I would like to convert an ext4 partition to ext3 partition without formatting the HDD. Is this possible and recommended?