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Vinod Mali
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Access Control List (ACL)
ACL is
used to set some special permissions on files or directories.  As we know every
file or directory have permissions for owner,
group and other users but if you want to provide access to any other user
without modifying current permissions of file or d...
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What is UMASK?
UMASK is
User file creation mask, which is used to set default permissions for newly
created files and directories. The default
maximum permissions for file is 666 because file doesn’t have execute
permissions by default and the maximum permissions for dire...
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iptables in Linux
iptables is implemented at lowest level of kernel which is called as netfilters. iptables does not operation on application layer iptables helps to block some type of DDOS attacks iptables is nothing but the collection of tables which are further divided in...
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Audit Policy Tracking in Linux
I n some situations we need to monitor some files and
wants to know when the files has been updated, which action has been take on
the file and which user have made the changes on it. To get such information we use audit policy tracking in
linux. Make sure ...
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