cat /proc/net/sockstat
result:
sockets: used 4807
TCP: inuse 2190 orphan 4 tw 42 alloc 4430 mem 2247
UDP: inuse 38 mem 81
UDPLITE: inuse 0
RAW: inuse 0
FRAG: inuse 0 memory 0
My mainframe basically has remote logs set up, and all of them are sent to the log center on the Synology NAS. Among them, there is a Raspberry Pi that is used as a router, and there will be a bunch of sshd verification attempts to log in. Basically, I only allow public key verification, so I don’t want to use passwords to brute force it, but a bunch of logs of verification failures are really good. Hate.
How to install PHP 7.1.7 on the old version of CentOS 5.11? An insfinit error occurred when compiling by myself. This article introduces my method.
For Linux system administrators, you must understand the ps aux command. If you want to be a Linux system administrator, or you are a Linux user, you should understand this command. ps is process status For short, anyone can find out what kind of program is running on the system and how the status is executed through this command. I saw some programs that should not appear, maybe the system was hacked and used to mine🥹
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