# Hostname

If keytab files are/need to be use by systems the hostname is limited to 15 characters. More details can be found here:
- [AdKerberosTroubleshooting](https://wiki.psi.ch/AIT/AdKerberosTroubleshooting)
- [KeytabFile](https://wiki.psi.ch/AIT/KeytabFile)

A copy of the wiki pages can be found at:
- [AdKerberosTroubleshooting.pdf](../_static/AIT-AD-Kerberos-Troubleshooting.pdf)
- [KeytabFile.pdf](../_static/AIT-Keytab-File.pdf)