Red Hat Bugzilla – Bug 463782
vino-server only listens to local v6 address
Last modified: 2014-06-18 05:10:33 EDT
Description of problem: Trying to set up vnc to only listen to local addresses using the "Only allow local connections" tick box; it seems to turn off v4 vis: $ netstat -tulpn | grep 5900 tcp 0 0 ::1:5900 :::* LISTEN 8419/vino-server $ telnet localhost6 5900 Trying ::1... Connected to localhost6. Escape character is '^]'. RFB 003.007 ^]c telnet> c Connection closed. $ telnet localhost 5900 Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused $ i.e., the v6 address is connectable but not the v4 address. With the local-only box unchecked, both are accessable (but for everyone :-(): $ netstat -tulpn | grep 5900 tcp 0 0 :::5900 :::* LISTEN 8419/vino-server $ telnet localhost 5900 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. RFB 003.007 ^]c telnet> c Connection closed. [cagney@tortura ~]$ telnet localhost6 5900 Trying ::1... Connected to localhost6. Escape character is '^]'. RFB 003.007 ^]c telnet> c Connection closed. $ (I half wonder is the problem is comming from either the kernel or packet filtering)
Work-around is to allow vino-server to not to restrict to "only allow local connections" and configure the firewall to restrict the access. The latter is the default when the firewall is enabled.
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verified fix *** This bug has been marked as a duplicate of bug 444849 ***