Public bug reported:
I am trying to setup saned for remote scanning, but without luck. On
server side I have allowed 192.168.1.0/24 subnet, but remote host does
not find a scanner. During investigation I found the following in
server's logs:
Jul 25 11:40:42 X saned[4167]: bailing out, waiting for children...
Jul 25 11:40:42 X saned[4167]: bail_out: all children exited
Jul 25 11:40:42 X saned[4299]: saned (AF-indep+IPv6) from sane-backends 1.0.30
starting up
Jul 25 11:40:42 X saned[4299]: do_bindings: [0] bind failed: Address already in
use
Jul 25 11:40:42 X saned[4300]: Now daemonized
Jul 25 11:40:43 X saned[4314]: check_host: access by remote host:
::ffff:192.168.1.2
Jul 25 11:40:43 X saned[4314]: check_host: getaddrinfo for local hostname
failed: No address associated with hostname
Jul 25 11:40:43 X saned[4314]: init: access by host ::ffff:192.168.1.2 denied
Jul 25 11:40:43 X saned[4314]: quit: exiting
It looks to me like it is treating the IPv4 to IPv6 converted address as a
hostname and trying to resolve it, what of course fails. This looks like a bug
for me. Adding "::ffff:192.168.1.2" to access list does not resolve the problem.
# sysctl -a | grep "net.ipv6.bindv6only"
net.ipv6.bindv6only = 0
** Affects: sane-backends (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1888928
Title:
"getaddrinfo for local hostname failed: No address associated with
hostname" for IPv4 to IPv6 converted address
Status in sane-backends package in Ubuntu:
New
Bug description:
I am trying to setup saned for remote scanning, but without luck. On
server side I have allowed 192.168.1.0/24 subnet, but remote host does
not find a scanner. During investigation I found the following in
server's logs:
Jul 25 11:40:42 X saned[4167]: bailing out, waiting for children...
Jul 25 11:40:42 X saned[4167]: bail_out: all children exited
Jul 25 11:40:42 X saned[4299]: saned (AF-indep+IPv6) from sane-backends
1.0.30 starting up
Jul 25 11:40:42 X saned[4299]: do_bindings: [0] bind failed: Address already
in use
Jul 25 11:40:42 X saned[4300]: Now daemonized
Jul 25 11:40:43 X saned[4314]: check_host: access by remote host:
::ffff:192.168.1.2
Jul 25 11:40:43 X saned[4314]: check_host: getaddrinfo for local hostname
failed: No address associated with hostname
Jul 25 11:40:43 X saned[4314]: init: access by host ::ffff:192.168.1.2 denied
Jul 25 11:40:43 X saned[4314]: quit: exiting
It looks to me like it is treating the IPv4 to IPv6 converted address as a
hostname and trying to resolve it, what of course fails. This looks like a bug
for me. Adding "::ffff:192.168.1.2" to access list does not resolve the problem.
# sysctl -a | grep "net.ipv6.bindv6only"
net.ipv6.bindv6only = 0
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https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1888928/+subscriptions
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