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telnet & ftp response too slowly

guo
guo asked
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Last Modified: 2013-12-23
We are using Solaris 2.5. When telnet or ftp to it, even via LAN or from itself, it respone very slowly at beginning.

For example. when I telnet to it, it takes 3 - 5 minutes until "login:" prompt cames out. But after the "login:" prompt, it becomes normally and reacts very quickly.

However, ping always response quicky. And there is no problem with DNS and routing.

Thanks in advance.
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Commented:
This porblem probably is related to nameserver problem. SOunds to me like the machine(s) are waiting for a nameresolv timeout until they fall back unto /etc/hosts or something.

So, check the /etc/resolv.conf (if you use DNS) so correct domain and nameserver is given there. Also check /etc/nsswitch.conf so that hosts have the following order: hosts: files dns or if you use nis: hosts: fils nis or if you use both: hosts: files nis dns

Also check that domainname ic correct (the NIS domainname) and that ypbind is running so it bind to the the ypserver.

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