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Solaris

Unable to telnet

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Operating Systems Solaris Unable to telnet
# 8  
Old 08-17-2007
Quote:
Originally Posted by *Jess*
hosts: files dns
Not sure, have you solved it or not?

Is your IP or name listed in /etc/hosts?

You might have to try writing a small C program to call "gethostbyname" and "gethostbyaddr" to track this down to see why telnet is failing.
# 9  
Old 08-17-2007
Problem is not solved yet. Still checking why it fails.
# 10  
Old 08-17-2007
Can you ftp in?

Do you have a filter setup for telnet in /etc/inetd.conf?

Code:
telnet  stream  tcp6    nowait  root    /usr/sbin/in.telnetd    in.telnetd

# 11  
Old 08-17-2007
Hi, we r unable to telnet n also ftp.

/etc/inetd.conf seems correct.Smilie
# 12  
Old 06-23-2008
behaviour by design
hi. this is behaviour by design in the server machine. What's happening is that the sun server that is not letting you in has a /etc/hosts.allow (and/or a /etc/hosts.deny) file that specifies rules telling it whether it should let a connection in depending on the connecting user/hosts/domain/network etc...

Normally, hosts.allow and hosts.deny are only checked when a program calls hosts_access(). By default, sshd and other programs do check the files, but not daemons like in.telnetd and ftpd, because these are services handled by inetd and by default inetd doesn't have tcp_wrappers on. The sysadmin must have enabled tcp_wrappers to telnet or to the whole of inetd, and thus each connection gets run through the /etc/hosts.allow and /etc/hosts.deny ruleset.

If you have a domain name change, maybe you are no longer making it through the rules in /etc/hosts.allow and /etc/hosts.deny so just update those.
# 13  
Old 06-24-2008
Are you try to

nslookup 172.16.101.120
nslookup vc00235.my.renesas.local

on your server 1 ?


arm_naja
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