I’m constantly needing a way to easily change a line in a bunch of configuration files. I thought I’d share the way I do it here.
perl -p -i -e 's/oldstring/newstring/g' *
This allows you to use a regular expression and perform the find and replace.
Here’s something that I usually forget to change from the default and then get annoyed when my terminal hangs.
- As root open your sshd_config file in an editor.
su -
vim /etc/ssh/sshd_config
- Add the following lines.
ClientAliveInterval 600
ClientAliveCountMax 3
- Restart the sshd process.
That’s it. That will keep you logged in for 30 minutes at a time without activity. (600 seconds x 3)
Here’s a quick and simple way to create a Subversion repository while maintaining security by using SSH and the filesystem permissions.
- Create users and add them to a group. There are a bunch of different ways to do this. I am only showing you how to create a group.
- Make a directory to house the repository.
- Create the repository.
svnadmin create /var/lib/project
- Change permissions to allow the group read/write access.
cd /var/lib/project
chgrp svn-users db db/transactions db/write-lock db/revs db/revprops hooks locks
chmod 2770 db db/transactions db/revs db/revprops
chmod 660 db/write-lock
chmod 750 hooks
chmod 770 locks
You can now have your users access the repository over SSH.
svn+ssh://username@server.example.com/var/lib/project
If your clients are on Windows, I recommend using TortoiseSVN.
Credit goes to the Carnival of Technology.
