Tag: ubuntuFix X11 Forwarding over SSH in Ubuntu 10.04 (Lucid)
October 13, 2011
There is a bug in Ubuntu Lucidís sshd (SSH server) that causes issues with IPv6-enabled network interfaces preventing X11 forwarding over SSH from working properly. The error in
error: Failed to allocate internet-domain X11 display socket.
To fix the issue, you need to tell sshd to only listen to IPv4. Add the following line at the top of
Solution is from: http://www.se.cuhk.edu.hk/~hmleung/wordpress/?p=876
Persistent Iptables in Ubuntu
September 09, 2011
Fedora defaults to persisting iptables (the Linux firewall) between restarts, but this is not the default case in Ubuntu. To have iptables persist between reboots in Ubuntu, you can install the iptables-persistent package:
sudo apt-get install iptables-persistentThe persistent tables will be stored in /etc/iptables/rules by default. You can save the live iptables to the persistent file using:
sudo iptables-save< /etc/iptables/rules
Fixing Gnome Themes in Ubuntu 11.04 (Natty)
May 17, 2011
A laptop that was dist upgraded from 10.11 to 11.04 was not applying the correct Gnome themes. Changing the theme in
sudo apt-get purge gnome-accessibility-themes sudo apt-get install gnome-themes-standard
This blog posted is based on a forum post at: http://ubuntuforums.org/showthread.php?t=1725221&page=2
Install SNMP on Ubuntu
May 06, 2011
To install SNMP on Ubuntu, run the commands below (as root):
apt-get install -y snmpd CONFIG="/etc/snmp/snmpd.conf" mv $CONFIG $CONFIG.bak echo rocommunity public > $CONFIG echo syslocation "put location here" >> $CONFIG echo syscontact firstname.lastname@example.org >> $CONFIG CONFIG="/etc/default/snmpd" mv $CONFIG $CONFIG.bak cat $CONFIG.bak | grep -v SNMPDOPTS > $CONFIG echo "SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid \ -c /etc/snmp/snmpd.conf'" >> $CONFIG service snmpd restart echo "Installed snmpd"
If you have a firewall, you will also need to allow UDP traffic on port 161. If you use iptables this can be accomplished with
iptables -A INPUT -p udp -m state --state NEW -m udp --dport 161 -j ACCEPT
You can test if SNMP is working by running snmpwalk from another machine:
snmpwalk -v 1 -c public -O e hostname
This blog posted is based on documentation at http://www.it-slav.net/blogs/2009/02/05/install-and-configure-snmp-on-ubuntu.
Ubuntu 11.04 (Natty) Automated Network Installation
May 05, 2011
Many sources exist to help with setting up automated network installations of Ubuntu. Below are a list of sources I used to get automated network installations of Ubuntu 11.04 (Natty Narhwal) working.
Determine Ubuntu Version
February 23, 2011
On Fedora and RHEL systems,
The solution to this issue originally came from an Ubuntu forum post.
Permanently Change Hostname in Ubuntu
February 15, 2011
To permanently to change the hostname of an Ubuntu box, edit the file
sshd in Ubuntu
December 28, 2010
By default, Ubuntu does not have sshd installed and configured. To be able to ssh into your machine, run:
sudo apt-get install openssh-server
Eeebuntu on ASUS EeePC 1000HA Missing Network Adapters
May 24, 2010
The solution was to upgrade to the 2.6.30 Linux kernel, which adds the necessary support for the network hardware in the EeePC 1000HA. The necessary Debian packages can be downloaded from the Ubuntu kernel mirror to a flash drive using a different computer. Then, install the three necessary Debian packages on the EeePC in this order:
The solution to this issue originally came from an Eeebuntu forum post.
Finding Packages in Ubuntu
September 29, 2009
In Fedora, I always use
Also see Emily & Aaron's Blog
acm apt awk bash benchwork bibtex c compiz dd-wrt dia dvd eeebuntu eeepc eps excel fedora firefox flash freebsd gnome hostname iptables java kde latex mac os x mail merge mediawiki mercurial mrtg nvidia pdf perl phidgets postscript powerpoint printer putty pxe python R route scenery sed snmp ssh structures subnet subversion sudo ubuntu vegetarian vim visio windows word wrt54gl x11 yum