CentOS

Did you try adding it using the network connections manger?

Your error message tells you what you need to know:

"Sorry, user thomas is not allowed to execute '/bin/su - thomasroot' as root on test.company.com."

You gave thomas permission to run /usr/bin/su not /bin/su

Which protocol are you using?

[code] ftp IN CNAME 192.168.16.114 ; [/code] A CNAME record must point to an A record somewhere. The above line is probably stopping your zone from loading. You want something like: [code] bar.example.com. CNAME foo.example.com. foo.example.com. A 192.0.2.23 [/code] ETA: Looks like " Whoever" notice...

Postfix cofiguration is in /etc/postfix/main.cf

Firewall has to allow port 25/TCP

You have to do the dig on the domain, not the FQDN for the machine. $ dig whatever.net ns ; > DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.6 > whatever.net ns ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 361 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY...

The default configuration only listens on the loopback address inet_interfaces = localhost Change it to: inet_interfaces = all or inet_interfaces = $myhostname, localhost You will probably want to set up a lot of other stuff but the above change should allow remote MTAs to connect. Also check that i...

Try

$ man chmod

[quote]Syntax error on line 105 of /etc/httpd/conf.d/ssl.conf:
SSLCertificateFile: file '/etc/pki/tls/certs/infovee.crt' does not exist or is empty
[/quote]
The error message is self explanatory. Apache cannot find a certificate where you told it is supposed to be.

This looks like a VMware issue, not CentOS one. You do not have the subnet your VM is in on the virtual switch or you put the VM interface on the wrong subnet.