Editing 2022-04-03

fail2ban created a filter for mercury's own address * booted into boot secure * edited /etc/fail2ban/jail.conf to put mercury's address in it (and my new home one) getting error: Apr 03 13:08:03 mercury systemd[1]: Starting Apply Kernel Variables... Apr 03 13:08:04 mercury systemd-sysctl[284]: Couldn't write '"4096 87380 4194304"' to 'net/ipv4/tcp_rmem': Invalid argu The problem lines were: net.ipv4.tcp_rmem="4096 87380 16777216" net.ipv4.tcp_wmem="4096 87380 16777216" they have to be written like this: net.ipv4.tcp_rmem = 4096 87380 4194304 net.ipv4.tcp_wmem = 4096 65536 4194304 use this to test them: sysctl -p and then check with systemctl list-units --all --state=failed

Summary:

This change is a minor edit.

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