Answer / sbrahman75

UMASK is a Unix environment variable, which automatically
sets file permissions on newly created files

Answer / j.srinivasa rao.

umask is known as user mask value.
the default value of umask is 022.
the advanced value of umask is 027.
when we want more security on files or directories we have
to use umask value.this is simply more security on files
and directories.

Hello Everyone, One of our servers is showing a strange issue, let me paste the output Code: root # uptime 4:37pm 3 users, load average: 0.00, 0.04, 0.04 Its been running since months but you can see after time there isn't any output like up 191 days(s). Even the who command with b and r option isn't giving any output. Code: root # who -b root # root # who -r root # the date command displays correct output. I am not sure but is it because someone has played with utmpx and wtmpx files, is reboot the only solution we have. Can anyone help us since we don't intend to reboot the server for such a reason and also no one has complained till yet.

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