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File and directory permissions chmod, change owner and group chown, umask, hidden permissions lsattr/chattr

chmod command Look at the file information and use the ls-l command. After execution, the results are as follows: [root@test-01 ~]# ls -l Total dosage...
15:48 20 December 2018

The usage of vrrp_script, track_script and notify in keepalived

A script defined in the keepalived.conf file can be used to implement a detection function.Example: Check if the down file in the / etc/keepalived dir...
5:21 14 December 2018

Linux memory management: ARM Memory Layout and mmu configuration

Before page initialization and mmu configuration in the kernel, you need to know the whole memory map. 1. ARM Memory Layout PAGE_OFFSET Start address...
10:27 8 December 2018