Hi Fred,
> Is this a known bug in HAProxy 1.5? > When I use 0.0.0.0 or * as server address for a certain host, HAProxy > crashes with a oom_killer log. Thats certainly not expected. Does the OOM conditional really come from HAProxy? > > server > ... > > Address “0.0.0.0″ or “*” has a special meaning. > It indicates that the connection will be forwarded to the same IP > address as the one from the client connection. This is useful in > transparent proxy architectures where the client’s connection is > intercepted and haproxy must forward to the original destination > address. > > eg in the backend: > > use-server www.speedtest.net if { hdr_sub(host) speedtest.net } > server www.speedtest.net * > > so what should happen is that the alias 'www.speedtest.net' should be > equal to the same IP address as was transmitted. > > Or am I doing something wrong? Please post the full configuration and explain what you are trying to do. Also, post the output of "./haproxy -vv". Regards, Lukas