Beta Branch update cminfo add syn command output in 140.00beta01

update cminfo add syn command output in 140.00beta01

- add syn command to cminfo command output to display a count of SYN_RECV connections and number of outgoing SYN-ACK packets
- you can let centmin mod default cronjob script /usr/bin/cminfo_updater update itself every 4 hrs or manually run the command /usr/bin/cminfo_updater to update

Code (Text):

cminfo syn
------------------------------------------------------------------
SYN Flood Report: SYN_RECV & Outgoing SYN-ACK Connections
------------------------------------------------------------------
Number of SYN_RECV connections: 0
No SYN-ACK packets captured in the last 10 seconds.
------------------------------------------------------------------

• SYN_RECV - The output reports the current number of half-open TCP connections (in the SYN_RECV state), which could indicate either legitimate incoming connection attempts or a possible SYN flood attack targeting your server
• SYN-ACK packets captured - The output shows the number of outgoing SYN-ACK packets captured within a specified period, which could reflect either normal TCP connection responses or an indication that your server is responding to spoofed SYN packets in a potential relay attack.

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140.00beta01 branch

• Branch: GitHub - centminmod/centminmod at 140.00beta01
• Commit History: Commits · centminmod/centminmod

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