On Mon, Apr 16, 2012 at 09:41:19AM +1000, Simon Dwyer wrote: > Further upon this i have updated to 3.1.19 and i get the same errors. I > have fresh installed the machine back to how it was when the first email > when out. > Is the keytab readable by the user running squid? The kerberos messages are not always the most helpful of things. You could also try writing a script wrapper around the authenticator to strace the start up to see if that gives you any more clues. -- Brett Lymn "Warning: The information contained in this email and any attached files is confidential to BAE Systems Australia. If you are not the intended recipient, any use, disclosure or copying of this email or any attachments is expressly prohibited. If you have received this email in error, please notify us immediately. VIRUS: Every care has been taken to ensure this email and its attachments are virus free, however, any loss or damage incurred in using this email is not the sender's responsibility. It is your responsibility to ensure virus checks are completed before installing any data sent in this email to your computer."