Enabled ShellCheck rules:
SC1087
SC2001
SC2004
SC2005
SC2006
SC2016
SC2028
SC2048
SC2066 (note that IFS already contains only a line feed)
SC2116
SC2166
SC2181
SC2206
SC2207
SC2230
SC2236
(cherry picked from commit bitcoin/bitcoin@1ac454a384)
Zcash: Applies more of this commit. It was partially backported in
zcash/zcash#4827, and is also partially backported here for the scripts
we actually have.
This commit adds a Linux script that uses tc and iptables to
limit outgoing bandwidth to Bitcoin nodes. All tcp connections with
a source or destination port of 8333 are limited to the chosen rate.
It does not alter the incoming bandwidth. Additionally, outgoing
bandwidth to a host on a local LAN (defined by the LOCALNET variable)
is not limited.