i have a dynamic OpenSSH tunel running as :
ssh -N -D '*:1080' email@example.com
(OpenSSH_5.3p1 Debian-3, OpenSSL 0.9.8n 24 Mar 2010)
which runs perfectly for a few hours, or a few days, but begin to randomly drop connections (not 100%, only some) yielding:
channel 1019: open failed: administratively prohibited: open failed
I googled it but can't find nothing more than this message spowning in cause of server misconfiguration denying completly the tunnel, here the tunnel works some hours before dropping a few requests.