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AIX, Active Directory, Telnet

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JSmytheeGLTT

Programmer
Dec 5, 2007
2
US
AIX server is setup to allow telnet with entries in the following uncommented:
/etc/services
/etc/inetd

ps -ef | grep inetd shows inetd running
lssrc -a | grep inetd shows inetd active

The following files do not exist:
/etc/hosts.allow
/etc/hosts.deny

telnetd exists in appropriate directory

/etc/hosts contains IP address that matches nslookup information returned at cmd prompt on Windows XP workstation

At DOS cmd prompt, telnet IPADDRESS PORT was entered but it returns "Connecting To IPADDRESS...Could not open connection to the host, on port PORT: Connect failed".
Telnet service is started on Windows XP workstation telnet was performed on.

Communication with AIX server is from within the organization (windows XP workstation to AIX server).
Both desktop and server have internal IP addresses.

There is supposedly no firewall between internal AIX server and internal desktops.

Does Active Directory need to have an entry for the AIX server IP address?

Can Active Directory have any part in the communication between a Windows XP workstation and an internal server?

If so, is there a special way an AIX server needs to be identified in Active Directory?


 
Are you sure the AIX box is listening on port 23? Run netstat -a on the AIX and look for the following:

Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 *:telnet *:* LISTEN



RoadKi11

"This apparent fear reaction is typical, rather than try to solve technical problems technically, policy solutions are often chosen." - Fred Cohen
 
No. AD has nothing to do with telnet. If you're using the IP address to connect to the AIX box then the AIX box doesn't even have to be in DNS.

When you're doing TELNET IPADDRESS PORT, are you actually specifying a port number? If you don't specify a port number then it will assume that you are using the default telnet port (which is probably what you want). If you are specifying a port number then you need to verify that the AIX box is listening on that port for a connection.
 
as per Roadki1l, I haven't seen you establish that the telnet daemon is running.
Try ps -ef | grep telnet

 
telnet command is being issued with a port number provided.
netstat -a was executed and telnet is listening.

telnet is being performed on a windows xp box trying to connect to an aix server.

a ping of the aix server ip returns "Request timed out".

tracert stops hopping at default gateway IP address (after default gateway only get request timed out).

a ping -w also returns a request timed out.

ping of local address 127.0.0.1 returns OK.
ping to the default gateway returns OK.
AIX server,windows xp workstation, hub are all on and connected to the network. firewall confirmed not to be the issue.

portion of AIX server IP address is not the same as windows workstation.
 
Verify that your XP and AIX box are using the correct subnet mask for the network
 
telnet command is being issued with a port number provided.
netstat -a was executed and telnet is listening.

But is it listening on the correct port?
 
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