This is a very strange behavior. I don't know if this is a problem with my configuration or a bug with crond I have installed RedHat 7.2 and use pam_ldap to connect to an OpenLDAP server for authentication. Authentication is fine. I can login without any problem ( both telnet and ssh are working fine ). However, when I create a user's cron job ( eg, after I login as user "abc" where "abc" exist on the LDAP server ) with the crontab as follow 00,05,10,15,20,25,30,35,40,45,50,55 * * * * touch /tmp/abc the first time of the cron job will run, but it will never run afterward. for example, if the first cron job start at 30, any job afterward ( like 35,40,45,... ) will never run. The crond's log ( /var/log/cron ) did show all the cron job run probably. by the way, I manually delete the file after it run ( eg at 36minutes ), /tmp/abc/ never created again even though /var/log/cron show the cron job is running and done. however, if I don't use pam_ldap ( ie remove all the ldap keyword from /etc/nsswitch ) and create a user locally, then edit the cron job again, the cron job did run every 5 minutes. Since I can login and the system did get the proper UID and GID, I believe pam_ldap and nss_ldap is working fine. I will try to install RH7.1 on a different machine to see if it has the same behavior. please advice. thanks!
