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conf.example: comments about UDP redirection

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commit 9352d659baed1ce5344872c4dec57a3ad1f77975 1 parent d8d521c
Leonid Evdokimov authored
Showing with 8 additions and 5 deletions.
  1. +8 −5 redsocks.conf.example
13 redsocks.conf.example
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@@ -82,11 +82,14 @@ redudp {
login = username;
password = pazzw0rd;
- // kernel does not give us this information, so we have to duplicate it
- // in both iptables rules and configuration file. By the way, you can
- // set `local_ip' to 127.45.67.89 if you need more than 65535 ports to
- // forward ;-)
- // This limitation may be relaxed in future versions using contrack-tools.
+ // redsocks knows about two options while redirecting UDP packets at
+ // linux: TPROXY and REDIRECT. TPROXY requires more complex routing
+ // configuration and fresh kernel (>= 2.6.37 according to squid
+ // developers[1]) but has hack-free way to get original destination
+ // address, REDIRECT is easier to configure, but requires `dest_ip` and
+ // `dest_port` to be set, limiting packet redirection to single
+ // destination.
+ // [1] http://wiki.squid-cache.org/Features/Tproxy4
dest_ip = 8.8.8.8;
dest_port = 53;
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