Wynton & BKS

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File Servers Exported to Wynton

bet      bet-wyn.wynton.ucsf.edu         bet-wyn:/work
tsadi    tsadi-wyn.wynton.ucsf.edu       tsadi-wyn:/ex1,/ex2,/ex3,/ex4
lamed    lamed-wyn.wynton.ucsf.edu       lamed-wyn:/ex5,/ex6,/ex7,/ex8

Adding a file server to Wynton

Connect an open network port on host to Wynton's network. Ask JL for IP-address and ports to connect to in BH101. Create network interface in /etc/sysconfig/network-scripts for new interface. Populate with the following:

/etc/sysconfig/network-scripts/ifcfg-<interface name>

DEVICE=<interface name>
HWADDR=<MAC Address> 
IPADDR=<Wynton IP>
DHCP_HOSTNAME=<wynton network hostname>.wynton.ucsf.edu
HOSTNAME=<wynton network hostname>.wynton.ucsf.edu

Create a static route to wynton

/etc/sysconfig/network-scripts/route-<interface name> via dev <interface name> 

See lamed for example.

Edit /etc/exports. Backup the configuration just in case of messups. Export the NFS files to with (rw,sync,fsid=<insert fsid>). Issue command:

exportfs -a


CentOS 6 NFS servers are showing user/group ownerships as nobody:nobody. This problem doesn't happen on the CentOS 7 machines. They are mounted NFSv4.0.

This is due to /sys/module/nfsd/parameters/nfs4_disable_idmapping. To address:

On the NFS Server exporting to Wynton:

 echo 'Y' > /sys/module/nfsd/parameters/nfs4_disable_idmapping 
 exportfs -a