> Our firewall administrator asked me to give him any port numbers that AFS
> uses to talk to other cells, so the requests can penetrate the firewall.
> I see the following lines in /etc/services:
> 
>      #
>      # For Kerberos token-passing during rsh
>      #
>      auth            113/tcp         authentication
>      ta-rauth        601/tcp         rauth
> 
> Are these ports relevant, and are there others I should know about?

Neither of those are particularly relevant.  These are:

afs3-fileserver 7000/udp                        # file server itself
afs3-callback   7001/udp                        # callbacks to cache managers
afs3-prserver   7002/udp                        # users & groups database
afs3-vlserver   7003/udp                        # volume location database
afs3-kaserver   7004/udp                        # AFS/Kerberos auth. service
afs3-volser     7005/udp                        # volume managment server
afs3-bos        7007/udp                        # basic overseer process
afs3-update     7008/udp                        # server-to-server updater
afs3-rmtsys     7009/udp                        # remote cache manager service

At a minimum, the following interactions must be possible:

Client     Server
 7000  <->  7001    (fileserver requests and callbacks)
 7000  <->  7003    (VLDB lookups)
   *   <->  7002    (required for pts and possibly authentication)
   *   <->  7004    (required for authentication)

These are optional:
   *   <->  7003    (required for vos)
   *   <->  7005    (required for vos)
   *   <->  7007    (required for bos)

If you expect to keep your own AFS cell "private", then you should
only allow traffic in the direction indicated.  In particular, traffic
TO ports 7001-7009 should only be permitted in an outbound direction,
while traffic FROM those ports should only be permitted in the inbound
direction.

-- Jeffrey T. Hutzelman (N3NHS) <[EMAIL PROTECTED]>
   Systems Programmer, CMU SCS Research Facility
   Please send requests and problem reports to [EMAIL PROTECTED]

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