I have a vendor that needs to telnet into the system using port 990 from an AS400 system.
The IBM RS600 system we are using is running AIX 5.3
I tested access to port 990 with the command below:
# telnet localhost 990
telnet: connect: A remote host refused an attempted connect operation.
I also tried going to another system in the network with the exact same result.
The entries in the /etc/services file for port 990 are
# grep 990 /etc/services
ftps 990/tcp # ftp protocol, control, over TLS/SSL
ftps 990/udp # ftp protocol, control, over TLS/SSL
The entries in /etc/inetd.conf for ftp and telnet are:
ftp stream tcp6 nowait root /usr/sbin/ftpd ftpd
telnet stream tcp6 nowait root /usr/sbin/telnetd telnetd -a
I can access the following ports with telnet but not port 990:
telnet localhost 21
telnet localhost 22
telnet localhost 23
The firewall people say that port 990 is accessible through the firewall.
Can someone please point me in the right direction on how to access port 990 with telnet on AIX 5.3?