Eric is spot-on .... it is a DNS issue (usually because the DNS name you
use [or IP address] in the SSH client command to connect, doesn't
resolve backwards).
The easiest fix is on the server end:
Change the default SSHD setting to NOT attempt DNS reverse lookups.
The file is: */etc/ssh/sshd_config*
The entry is: *UseDNS no*
Enjoy!
Dan
IT4SOHO
On 8/26/2013 11:40 PM, Eric Shubert wrote:
On 08/26/2013 08:07 PM, ChandranManikandan wrote:
Hi All,
I had used this command and shows below result.
#free
total used free shared buffers cached
Mem: 10370416 9965280 405136 0 226428 8775244
-/+ buffers/cache: 963608 9406808
Swap: 4096564 104 4096460
But if i access the server via ssh it's open slow performance even in
local ip.
This is a name resolution problem that's fairly common with ssh.
There's a sometimes long pause waiting for the password, because the
ssh host is trying to find a name of some sort. When it times out, the
password prompt is shown. I've seen this frequently, just haven't
taken the time to fix it, so I don't recall the solution off hand.
Is there any way to clear temporary buffer and cached commands.
Those aren't what you think they are. They're for disk i/o. The kernel
allocates and uses these areas automatically. The kernel uses what it
can and what it needs. High cached values are a good thing, because a
lot of disk i/o is cached.
It appears you've got way more ram on that host than you really need.
--
*/Thanks & Best Regards,
Manikandan.C
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