How to check if a Socks5 proxy works
If you created the proxy by yourself you should first of all check whether there is an open port (the p
argument only works if the concerning process is yours or you are root):
netstat -tlnp
This should give you a line like: (I have a proxy on localhost:8888
)
tcp 0 0 127.0.0.1:8888 0.0.0.0:* LISTEN
If you found such a line or the proxy isn't yours, try sending packets through it. For example request a web page with curl
:
curl --socks5 localhost:8888 binfalse.de
Should output some HTML stuff. Hope this helps to search for mistakes ;-)
Aux: For my example I created the proxy via:
ssh -o ServerAliveInterval=60 -D8888 someone@somewhere
Replace someone
with your username and somewhere
with your destination server. Of course using OpenSSH is just one method in a bunch of possible socks5 proxies.
To get curl to resolve the DNS on the other side, change --socks5
with --socks5-hostname
.
See the man page for more info.
The following command will test whether Socks 5 proxy works at localhost:8080
:
timeout 5 curl -x socks5://localhost:8080 http://example.com/
Otherwise it'll timeout after 5 seconds. If you don't have a timeout
command, drop it.