I was getting “Failed to verify krb5 credentials: Server not found in Kerberos database” errors when trying to use Kerberos authentication in Apache2. The problem was in my /etc/hosts file. I needed to change this:
10.183.97.44 charity.progclub.org charity 67.207.128.184 charity-public
To this:
10.183.97.44 charity.progclub.org charity 67.207.128.184 charity.progclub.org charity-public
In subversion I was getting the error “post-commit hook failed (exit code 255) with no output” after trying to configure my post-commit hook to send email notifications. At first I thought the problem must have been related to the mailer, but I ran the mail command manually and it worked fine. Eventually I figured out that the problem was that the hooks/post-commit file hadn’t been marked executable. So it was a simple chmod +x to fix the problem.