Installing an OpenAFS Client on Ubuntu

This documentation will help in setting up an Ubuntu machine (Ubuntu 18.04.1 LTS) as an AFS client. Means the Ubuntu machine will be able to access the NJIT's AFS directory (/afs/cad/).

Installing OpenAFS packages

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sudo apt-get install openafs-krb5 openafs-client

Information Required:

• Default Cell: cad.njit.edu
• AFS Cache: Don't change (keep it default)

Installing Kerberos Client package

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sudo apt-get install krb5-user

Information Required:

• Realm: NJIT.EDU (In capital letters)
• Servers: kay00.njit.edu:88 kay01.njit.edu:88 kay02.njit.edu:88
• Admin Server: kay00.njit.edu:749

Edit /etc/krb5.conf

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• Below [libdefaults], enter the following:

dns_lookup_realm = false

dns_lookup_kdc = false

• Below [realms], enter the following within the NJIT.EDU curly brackets

default_domain = njit.edu

Edit /etc/openafs/CellServDB

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Delete all the content of file /etc/openafs/CellServDB and add the following:

   >cad.njit.edu     #Cell name
   128.235.209.210   #ucsafsdb00.coresys.njit.edu
   128.235.209.211   #ucsafsdb01.coresys.njit.edu
   128.235.209.243   #ucsafsdb02.coresys.njit.edu
   128.235.209.244   #ucsafsdb03.coresys.njit.edu

Starting the AFS Client and accessing the afs home directory

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• Reboot the machine. The OpenAFS client should auto start upon reboot.

• Get the Kerberos ticket using kinit, and your AFS token using aklog

   kinit UCID && aklog

• You should now be able to access your AFS home directory.

   cd /afs/cad/u/<first_letter_of_ucid>/<second_letter_of_ucid>/<your_ucid>/