I have a system running RHEL4 kept uptodate except for the kernel and noticed that my NFS exports suddenly couldn't be mounted by clients. When I logged in and ran sudo to start my investigating, sudo crashed with a "Segmentation fault". Not looking so good. Interestingly enough, the problems are related. I upgraded one of my SL43 systems to SL44 and got exactly the same bad behavior. If you make use of either wildcards or NIS netgroups in the /etc/exports file then none of the filesystems listed in there will actually be exported. Likewise, if you make use of NIS netgroups in your /etc/sudoers file then sudo with segfault. Ouch! i.e. in your /etc/exports file: /space/viewstore @clearcase_machines(sync,rw,no_subtree_check) or the folowing in your /etc/sudoers file: User_Alias VOBADM=+vob_administrators where clearcase_machines and vob_adminstrators are defined in the /etc/netgroup file on your NIS master server. Is anyone else wrestling with this? Anyone know which package is the culprit? Maybe yp-tools-2.8-7 or ypbind-1.17.2-8? I've never actually tried to contact RedHat. Has anybody reported a problem to them and know what the best way to do it is? -- David M. Cooke <[log in to unmask]>