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Showing content with the highest reputation on 07/23/19 in all areas

  1. 1 point
    I'm getting the same problem as @J.Nerdy after an update. Not sure why this is happening. Restarting the container works, then the UI and program freeze. Nothing I can do from there without restart the app again. Keeps doing the same thing though. Works for a min or two, then freezes. Checking log it says: TCP: request_sock_TCP: Possible SYN flooding on port X. Sending cookies. Check SNMP counters. Any idea on this? It just started popping up, no idea why as I've had this box running for 2+ years w/ no issues like this before. ***EDIT*** I looked around and found that the SYN flooding message related to the system thinking it's under some sort of DDoS attack. Modified the following in my sysctl file and it seems to be good so far: net.ipv4.tcp_syn_retries = 3 # default=5 net.ipv4.tcp_synack_retries = 3 # default=5 net.ipv4.tcp_max_syn_backlog = 65536 # default=1024 net.core.wmem_max = 8388608 # default=124928 net.core.rmem_max = 8388608 # default=131071 net.core.somaxconn = 512 # default = 128 net.core.optmem_max = 81920 # default = 20480 # net.ipv4.tcp_syncookies=0