Hi, connecting to some SSH Linux servers on the same LAN takes about 10 seconds :
me@PC-A $ time ssh X.Y.Z.T :
Warning: Permanently added 'X.Y.Z.T' (RSA) to the list of known hosts.
real 0m10.168s
user 0m0.005s
sys 0m0.004s
But once logged on X.Y.Z.T :
me@serverA $ time ssh localhost :
root@localhost's password:
real 0m0.518s
user 0m0.022s
sys 0m0.010s
Here is the sshd_config :
me@serverA $ egrep -v "^(#|$)" /etc/ssh/sshd_config
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
SyslogFacility AUTHPRIV
AuthorizedKeysFile .ssh/authorized_keys
PasswordAuthentication yes
ChallengeResponseAuthentication no
GSSAPIAuthentication yes
GSSAPICleanupCredentials no
UsePAM yes
X11Forwarding yes
AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
AcceptEnv XMODIFIERS
Subsystem sftp /usr/libexec/openssh/sftp-server
and some information on the load :
me@serverA $ free -m
total used free shared buff/cache available
Mem: 128672 27136 3197 4089 98338 89989
Swap: 17407 14 17393
me@serverA $ top | head -15
top - 12:32:41 up 60 days, 20:39, 1 user, load average: 0.45, 1.46, 1.64
Tasks: 455 total, 1 running, 454 sleeping, 0 stopped, 0 zombie
%Cpu(s): 1.3 us, 2.0 sy, 0.0 ni, 96.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 13176076+total, 3230140 free, 27788596 used, 10074203+buff/cache
KiB Swap: 17825788 total, 17811452 free, 14336 used. 92147944 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4624 root 20 0 58824 2384 1480 R 11.8 0.0 0:00.03 top
20726 root 20 0 2086772 596588 3908 S 11.8 0.5 1995:02 bizstorenode
20729 root 20 0 2375864 1.1g 3948 S 11.8 0.9 4161:04 bizstorenode
4626 root 20 0 159464 3740 2780 S 5.9 0.0 0:00.01 biziodf
9278 root 20 0 1209128 57952 5000 S 5.9 0.0 87:11.35 /usr/bin/python
9299 root 20 0 457408 62472 2420 S 5.9 0.0 3859:49 python sagentd/
20719 root 20 0 2063592 547224 3924 S 5.9 0.4 2072:04 bizstorenode
20727 root 20 0 2071220 584648 3908 S 5.9 0.4 2029:08 bizstorenode
Just started the sysstat service, which was not installed, so there is no sar data yet.
EDIT0 : The result of the dig command :
me@serverA $ time dig +short -x X.Y.Z.T
real 0m0.007s
user 0m0.000s
sys 0m0.003s
