I was wondering if anyone knew how I would open up my server so it can be telneted into from other subnets.
Well I'm not familiar with SCO OpenServer but
you probably want to use TCP wrappers.
Look for a man page on hosts_access(5) to see
how to set up /etc/hosts.allow and /etc/hosts.deny
and you can set this up to allow telnet from
internal network addresses only.
For instance, in /etc/hosts.allow
in.telnetd: LOCAL, 192.168.254.
in.ftpd: LOCAL, 192.168.254.
sshd: ALL
...and in /etc/hosts.deny
ALL: ALL
...this configuration will allow telnet and ftp
from any address in the 192.168.254.0-255 range
and SSH access to all
Your question is confusing. You want to telnet from "other" subnets. Are you saying that you wish to telnet into your SCO box say from a remote site via Internet or VPN or similar? I can tell you that I strongly recommend you never telnet into your server like that since your password is not encrypted. Is your SCO server sitting behind a firewall?