search for: inaddr6_any

Cheers all, TL;DR version: I've recently found that at least on my test box the `LISTEN *` line had only set up an IPv4 `0.0.0.0` listener but not an IPv6 `::0` listener for `upsd`. In fact, at least on a "dual-stack" system, it seems impossible to bind to both - so depending on binding order I either lose IPv6 or lose IPv4 directly (but have it practically as IPv4-over-IPv6).

Cheers all, TL;DR version: I've recently found that at least on my test box the `LISTEN *` line had only set up an IPv4 `0.0.0.0` listener but not an IPv6 `::0` listener for `upsd`. In fact, at least on a "dual-stack" system, it seems impossible to bind to both - so depending on binding order I either lose IPv6 or lose IPv4 directly (but have it practically as IPv4-over-IPv6).

...s a real error? need to figure out if v6only=0 systems some try to map this. The point being not to fight os/sysadmin choice even if misguided :-) else: error log that v4 bind failed and LISTEN * should #ifdef v6 at compile time open a socket and bind to INADDR6_ANY:3493 error log that v6 bind failed #endif open a socket and bind to INADDR_ANY:3493 if error: if there is a v6 socket: debug log that v4 bind failed else: error log that v4 bind failed > Detailed musing and logs are posted in > https://github.c...

...s a real error? need to figure out if v6only=0 systems some try to map this. The point being not to fight os/sysadmin choice even if misguided :-) else: error log that v4 bind failed and LISTEN * should #ifdef v6 at compile time open a socket and bind to INADDR6_ANY:3493 error log that v6 bind failed #endif open a socket and bind to INADDR_ANY:3493 if error: if there is a v6 socket: debug log that v4 bind failed else: error log that v4 bind failed > Detailed musing and logs are posted in > https://github.c...

...if v6only=0 systems some try to map > this. The point being not to fight os/sysadmin choice even if > misguided :-) > else: > error log that v4 bind failed > > and LISTEN * should > > #ifdef v6 at compile time > open a socket and bind to INADDR6_ANY:3493 > error log that v6 bind failed > #endif > > open a socket and bind to INADDR_ANY:3493 > if error: > if there is a v6 socket: > debug log that v4 bind failed > else: > error log that v4 bind failed > > > > > >...

...if v6only=0 systems some try to map > this. The point being not to fight os/sysadmin choice even if > misguided :-) > else: > error log that v4 bind failed > > and LISTEN * should > > #ifdef v6 at compile time > open a socket and bind to INADDR6_ANY:3493 > error log that v6 bind failed > #endif > > open a socket and bind to INADDR_ANY:3493 > if error: > if there is a v6 socket: > debug log that v4 bind failed > else: > error log that v4 bind failed > > > > > >...