Telnet forbid

[Ralf Buchhold]

Hello
where can I forbid to use telnet ?
Thanks
Ralf

[jpcast_real · Accepted solution]

Hello Ralf,

in Hp-ux you have the file inetd.conf where you can configure the options of different internet services . You can have a look at the man page of inetd.conf

Regards

[Steven E. Protter]

You have several options:

1) comment out the telnetd line of inet.conf inetd -c to reload.

2) Use ipfilter and block all traffic on port 23 inbound.

SEP

[Bernhard Mueller]

Ralf

echo "telnet deny" >> /var/adm/inetd.sec

man inetd.sec

Regards
Bernhard

[harry d brown jr]

Inbound to your server ?

or

outbound from your server to another server?

solutions posted work for inbound.

live free or die
harry d brown jr

[Biswajit Tripathy]

As Harry already said, above solutions work for only
inbound connections. If that's what you want, then
fine. But, if you need more flexibility, you could use
IPFilter. The flexibilities you have with IPFilter are:

1) blocking/alowing only inbound OR only outbound
OR both.

2) blocking/allowing telnet to/from specific IP
address, network or IP address range.

3) blocking/allowing telnet through an interface only
(i.e all telnets through lan0 allowed and lan1
blocked).

4) allowing specific number of inbound/outbound
connections (i.e only 1 outbound at any time OR
only 1 inbound for each unique IP address in the
network).

- Biswajit