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Configuring kerberos on Ubuntu Linux

1/ Install kinit

sudo apt-get install krb5-user

2/ Configure your krb5.conf

1. wget http://security.fnal.gov/krb5.conf
[* A copy is saved here http://dl.dropbox.com/u/9187400/Misc/krb5.conf, in case the above link does not work.]
2. sudo mv /etc/krb5.conf /etc/krb5.conf.save
3. sudo mv krb5.conf /etc/krb5.conf

3/ Log on to Fermilab cluster.

kinit -f -n weigang@FNAL.GOV
ssh landshark-clued0.fnal.gov

4/ Reference
https://fermilinux.fnal.gov/documentation/security/kerberos-newer-linux/
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