On Thu, 2020-10-22 at 15:13 +0200, Thomas Plant wrote: > Am 22.10.2020 um 14:11 schrieb Thomas Plant: > > Hi, > > > > we are upgrading some servers from C6 to C7 with a lot of user > > accounts on them (UID>=500). > > CentOS 7 has MIN_UID/MIN_GID 1000, Centos 6 has 500 in login.defs. > > > > Can I change in /etc/login.defs MIN_UID/MIN_GID to 500 for C7? So > > I > > could just grep the users out from passwd/shadow/group files and > > append them to the Centos7 passwd/shadow/group files. > > Can this do any damage to CentOS7 later on? Thinking about > > updates.... > > > > Thanks, > > Thomas > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > https://lists.centos.org/mailman/listinfo/centos > > Thanks, for the hints. > > Think I will go the lazy way and adapt login.defs. ;-) > > Greetings, > Thomas > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > You better don't do that: when I looked at one of my C8 boxes there were many services that require a system account (but not a global fixed one) were allocated from the top of the 500-999 range. Bite the bullet and change user accounts. to start from 1000. Especially when using NFS this may otherwise come back and bite you