14,291 reputation
15078
bio website
location
age
visits member for 4 years, 2 months
seen 8 mins ago

GNU/Linux user. Systems Engineer. Runner.


15h
awarded  Enlightened
16h
awarded  Nice Answer
20h
revised Reverse DNS PTR lookups ocurring on each connection
added 82 characters in body
1d
comment How can I grep a certain text and display its line and the line after as well
@Emmanuel Cleaned up the awk answer, thanks!
1d
revised How can I grep a certain text and display its line and the line after as well
deleted 9 characters in body
1d
comment How can I grep a certain text and display its line and the line after as well
@Emmanuel I didn't, was a sloppy copy-paste-and-edit from another command in my shell environment.
1d
revised How can I grep a certain text and display its line and the line after as well
added 334 characters in body
1d
answered How can I grep a certain text and display its line and the line after as well
1d
comment Reverse DNS PTR lookups ocurring on each connection
Actually, it looks to me like you /have/ found the issue. When you connect over 22, SSH is likely doing the dns lookup, you can stop it by adding UseDns no to your sshd config and restarting the daemon. On 80, it looks like your python process is clearly doing the lookup.
1d
revised Reverse DNS PTR lookups ocurring on each connection
added 275 characters in body
1d
revised Reverse DNS PTR lookups ocurring on each connection
added 110 characters in body
1d
answered Reverse DNS PTR lookups ocurring on each connection
1d
revised Using jq to extract values and format in CSV
added 87 characters in body
1d
answered Using jq to extract values and format in CSV
1d
awarded  Enlightened
1d
awarded  Nice Answer
2d
revised Why does “cat /tmp/out1 > /tmp/in2 &” appear as “bash” with the “ps” command?
added 187 characters in body
2d
answered Why does “cat /tmp/out1 > /tmp/in2 &” appear as “bash” with the “ps” command?
2d
answered How to find source of spawning process?
Sep
30
awarded  Explainer