Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
SSH takes a long time to connect or log in
Answer
If you experienced slow SSH connect to a remote server, you can try to disable the reverse DNS lookup at the server.
1. Edit the sshd_config
# sudo vi /etc/ssh/sshd_config
2. Add the following line in sshd_config
UseDNS no
3. Restart sshd
# sudo /etc/init.d/ssh restart
Installing Python modules with easy_install
Answer:
Install Python modules cannot be easier with easy_install.
To use easy_install, you can use apt-get to install the "python-setuptools" package
# sudo apt-get install python-setuptools
Then you can use easy_install to install the module you want, e.g. pymongo
# sudo easy_install pymongo
SSHMenu: SSH connections manager for GNOME
Answer:
SSHMenu is a GNOME panel applet* that keeps all your regular SSH connections within a single mouse click.
Highly recommended if you need to manage a lot of SSH sessions.
Official homepage: http://sshmenu.sourceforge.net/
Put a profile in AppArmor complain mode
Answer:
Some applications, such as the MySQL server, if you changed the default datadir, you might not be able to startup MySQL.
To solve the problem, put the MySQL profile in AppArmor complain mode can solve the problem.
# sudo aa-complain /usr/sbin/mysqld
Then reload AppArmor
# sudo invoke-rc.d apparmor reload
Set session-wide environment variables
Answer:
Create the file .pam_environment in your home directory.
# vi ~/.pam_environment
FOO=BAR
Add you key=value pairs into this file and save it.
This is the recommended way to store user's environment variables.
