Questions tagged [ubuntu]

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.

Ubuntu Linux is a Debian derivative that aims to bring Linux mainstream. Ubuntu is named after the South African philosophy of "humanity towards others," and the community observes a Code of Conduct in an effort to keep the project civil and appealing to novices.

Ubuntu versions are released every six months, following a YEAR.MONTH pattern. For example, the release codenamed Maverick was officially published October 10th 2010 as Ubuntu 10.10. Each release gets the software from the Debian Unstable repository, freezes it and fix and adapt it to Ubuntu philosophy.

A list of Ubuntu releases can be found here

Ubuntu Linux is backed by Canonical Ltd., a company founded and funded by South African Mark Shuttleworth, entrepreneur and Debian Developer. The focus of Canonical is to provide support and services to Ubuntu Linux Desktop and Server editions. Canonical employers sometimes develop to Ubuntu and Debian at the same time, that way keeping the contributions flowing back to Debian.

There is a Stack Exchange site dedicated to Ubuntu which is a good place to ask any Ubuntu-related questions.

16409 questions
5
votes
4 answers

Point a subdomain to phpmyadmin installed on an ubuntu 12.04

I've been struggling a little bit with this setup. i've installed all the prerequisites for phpmydamin and itself is available at ip/phpmyadmin. Now i have a subdomain that i want to point to it. let's say i want to point data.somedomain.com to the…
black sensei
  • 609
  • 3
  • 10
  • 25
5
votes
3 answers

Rsync process is killed abruptly during backup over SSH

I have an rsync backup script to transfer data between two Ubuntu servers (located in different countries). The data being backed up is quite large in terms of number of files. It is about 17GB in size totally. The script runs on the receiver…
Anjan
  • 307
  • 1
  • 2
  • 14
5
votes
2 answers

Second ENI in AWS VPC is not accessible on Ubuntu instance

I'm just getting into VPC, trying to understand how everything works. So far the biggest hurdle I've run into is that any time I add a second Elastic NIC to a machine, that second IP is not accessible by any others in the VPC. Here's what I…
Jon
  • 632
  • 6
  • 13
5
votes
5 answers

Apache cached old ssl certificate

About 2 weeks ago I bought a new wildcard SSL certificate for all of my servers, and immediately tried to set it up on a server by replacing the old self-signed certificate settings. So, I put in the new details, restarted apache, and refresh my…
Sbx
  • 79
  • 1
  • 2
  • 5
5
votes
1 answer

Ubuntu to list relevant security advisories

If I want to find out what security updates there are on a redhat/centos server and the coresponding security advisory I can run this command: yum --security list-security That would include data such as: RHSA-2013:0132 security…
neoCrimeLabs
  • 161
  • 1
  • 5
5
votes
1 answer

How can I use etckeeper via sudo with different users and have the correct user in the commit message?

I'm working on a server with several admin users. Each of them can use sudo to make configuration changes. We're keepeing our /etc directory version-controlled using etckeeper. However, when I or another admin calls sudo etckeeper commit…
andreas-h
  • 1,114
  • 1
  • 17
  • 28
5
votes
2 answers

Sendmail process failed with error code 67

Everything was worked fine but someday sendmail stop working on me. I'am trying the following command line: echo "Body text" | mail -s "Some subject" example@somemail.com And got: /home//dead.letter... Saved message in…
FelikZ
  • 345
  • 1
  • 4
  • 12
5
votes
3 answers

Move /var directories to to /mnt on an EC2 instance

I am trying to work on a standard configuration for a set of EC2 instances running ubuntu 12.04. These servers are going to be primarily web servers for a Ruby on Rails application. When you configure a new large instance, you are given a primary of…
5
votes
4 answers

How do I automatically restart a process on server reboot/process exit?

On my Ubuntu server I use God to monitor some Ruby processes/scripts, including a Queue system. God automatically checks when one of my processes exists and restarts it. It also keeps track of memory usage and acts properly when specific conditions…
Simone Carletti
  • 1,524
  • 3
  • 15
  • 30
5
votes
2 answers

Lost Linux root password - Recovery mode and init=/bin/bash fail

I lost/forgot the root password to a server sitting beside me and am trying to reset it. I would rather not have to wipe and re-install or use a Live CD (server is running Ubuntu Server 12.04). What I've tried so far... 1) Boot into "Recovery mode"…
Albeit
  • 161
  • 1
  • 1
  • 2
5
votes
3 answers

(ubuntu) How to kill a respawn service

I like to respawn a service when the service goes down. I have added it to inittab however I cannot kill it when i need to. Is there away i can respawn a service however be able to kill it manually when i need to. thanks in advance
super2442804
  • 53
  • 1
  • 5
5
votes
2 answers

Linux ldap authentication, pam_filter ignored

I've set up linux client authentication via ldap, it works. I want to control user's access to several services by adding or removing different OUs for accounts. E.g., if user is allowed to login linux machines, it's ou must contain "linux". If this…
Alexander
  • 163
  • 1
  • 6
5
votes
1 answer

Intel NIC X540-T1 non-functional in Ubuntu Server 12.04

I have installed three Intel X540-T1's in servers running Ubuntu Server 12.04, but all are non-functional, no link lights, no packets sent or received, and no connection on ip4 or ip6 whether set up as dhcp or static. Also, dmesg doesn't detect…
Jeff Carr
  • 81
  • 1
  • 10
5
votes
2 answers

Uneven CPU core utilization

tl;dr: First CPU core is consistently saturated, all other cores are consistently under-loaded. A VM, inside Ubuntu-based Xen XCP: $ uname -a Linux MYHOST 2.6.38-15-virtual #59-Ubuntu SMP Fri Apr 27 16:40:18 UTC 2012 i686 i686 i386 GNU/Linux $…
Alexander Gladysh
  • 2,423
  • 8
  • 31
  • 49
5
votes
1 answer

Ruby installed on Ubuntu 10.10 slow on one machine but not other

I have a machine that was provisioned several months ago. RVM was used to install ruby 1.9.3-p125 as well as 1.9.3-p125-perf. When I compared raw ruby performance to another identical machine the older machine smoked them. For…
Aaron Jensen
  • 203
  • 1
  • 8