Lustre 1.6 Operations Manual

11.2.1.5 Setting the Environment
Perform the following steps to configure the system and network to use Kerberos.
System-wide Configuration
1. On each MDT, OST, and client node, add the following line to /etc/fstab to
mount them automatically.
nfsd /proc/fs/nfsd nfsd defaults 0 0
2. On each MDT and client node, dd the following line to /etc/request-key.conf.
create lgssc * * /usr/sbin/lgss_keyring %o %k %t %d %c %u %g %T %P %S
Networking
If your network is not using SOCKLND or InfiniBand (and uses Quadrics, Elan or
Myrinet for example), configure a /etc/lustre/nid2hostname (simple script that
translates a NID to a hostname) on each server node (MDT and OST). This is an
example on an Elan cluster:
#!/bin/bash
set -x
exec 2>/tmp/$(basename $0).debug
# convert a NID for a LND to a hostname, for GSS for example
# called with three arguments: lnd netid nid
# $lnd will be string "QSWLND", "GMLND", etc.
# $netid will be number in hex string format, like "0x16", etc.
# $nid has the same format as $netid
# output the corresponding hostname, or error message leaded by a '@'
for error logging.
lnd=$1
netid=$2
nid=$3
11-8 Lustre 1.6 Operations Manual • September 2008