Bind9 socket.c unexpected error












1















The named process is giving this kind of error the whole day:



Jun 17 12:50:43 s named[24479]: socket.c:5274: unexpected error:
Jun 17 12:50:43 s named[24479]: connect(198.41.0.4#53) 22/Invalid argument


What is this error?



Named (BIND 9.8.4-rpz2+rl005.12-P1) runs on Debian GNU/Linux squeeze/sid x32. From machine I can telnet to this address (a.root-servers.net.), also I can resolve IP address to name with nslookup










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  • Hi welcome to slashdot. Add Linux version/software versions to this post and any future posts please. It seems BIND was unable to connect to that IP. Could be a transient error. Is it your BIND configured for IPv6 only or is the IPv4 interface down? Have you allowed besides UDP/53, TCP/53, if using firewall rules? Test 198.41.0.4 with a dig/nslookup from the BIND machine

    – Rui F Ribeiro
    Jun 17 '16 at 10:30













  • Have you restarted named?

    – Rui F Ribeiro
    Jun 17 '16 at 10:46











  • Several times, same problem

    – gedO
    Jun 17 '16 at 10:47











  • what does sudo tcpdump -nvvv host 198.41.0.4 says? leave it running until you have a couple of answers.

    – Rui F Ribeiro
    Jun 20 '16 at 13:12











  • Tcpdump captures: pastebin.com/77cLNBk4

    – gedO
    Jun 20 '16 at 13:27
















1















The named process is giving this kind of error the whole day:



Jun 17 12:50:43 s named[24479]: socket.c:5274: unexpected error:
Jun 17 12:50:43 s named[24479]: connect(198.41.0.4#53) 22/Invalid argument


What is this error?



Named (BIND 9.8.4-rpz2+rl005.12-P1) runs on Debian GNU/Linux squeeze/sid x32. From machine I can telnet to this address (a.root-servers.net.), also I can resolve IP address to name with nslookup










share|improve this question
















bumped to the homepage by Community 7 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
















  • Hi welcome to slashdot. Add Linux version/software versions to this post and any future posts please. It seems BIND was unable to connect to that IP. Could be a transient error. Is it your BIND configured for IPv6 only or is the IPv4 interface down? Have you allowed besides UDP/53, TCP/53, if using firewall rules? Test 198.41.0.4 with a dig/nslookup from the BIND machine

    – Rui F Ribeiro
    Jun 17 '16 at 10:30













  • Have you restarted named?

    – Rui F Ribeiro
    Jun 17 '16 at 10:46











  • Several times, same problem

    – gedO
    Jun 17 '16 at 10:47











  • what does sudo tcpdump -nvvv host 198.41.0.4 says? leave it running until you have a couple of answers.

    – Rui F Ribeiro
    Jun 20 '16 at 13:12











  • Tcpdump captures: pastebin.com/77cLNBk4

    – gedO
    Jun 20 '16 at 13:27














1












1








1








The named process is giving this kind of error the whole day:



Jun 17 12:50:43 s named[24479]: socket.c:5274: unexpected error:
Jun 17 12:50:43 s named[24479]: connect(198.41.0.4#53) 22/Invalid argument


What is this error?



Named (BIND 9.8.4-rpz2+rl005.12-P1) runs on Debian GNU/Linux squeeze/sid x32. From machine I can telnet to this address (a.root-servers.net.), also I can resolve IP address to name with nslookup










share|improve this question
















The named process is giving this kind of error the whole day:



Jun 17 12:50:43 s named[24479]: socket.c:5274: unexpected error:
Jun 17 12:50:43 s named[24479]: connect(198.41.0.4#53) 22/Invalid argument


What is this error?



Named (BIND 9.8.4-rpz2+rl005.12-P1) runs on Debian GNU/Linux squeeze/sid x32. From machine I can telnet to this address (a.root-servers.net.), also I can resolve IP address to name with nslookup







debian bind






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 3 '18 at 20:08









Rui F Ribeiro

40.1k1479136




40.1k1479136










asked Jun 17 '16 at 9:52









gedOgedO

1065




1065





bumped to the homepage by Community 7 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







bumped to the homepage by Community 7 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.















  • Hi welcome to slashdot. Add Linux version/software versions to this post and any future posts please. It seems BIND was unable to connect to that IP. Could be a transient error. Is it your BIND configured for IPv6 only or is the IPv4 interface down? Have you allowed besides UDP/53, TCP/53, if using firewall rules? Test 198.41.0.4 with a dig/nslookup from the BIND machine

    – Rui F Ribeiro
    Jun 17 '16 at 10:30













  • Have you restarted named?

    – Rui F Ribeiro
    Jun 17 '16 at 10:46











  • Several times, same problem

    – gedO
    Jun 17 '16 at 10:47











  • what does sudo tcpdump -nvvv host 198.41.0.4 says? leave it running until you have a couple of answers.

    – Rui F Ribeiro
    Jun 20 '16 at 13:12











  • Tcpdump captures: pastebin.com/77cLNBk4

    – gedO
    Jun 20 '16 at 13:27



















  • Hi welcome to slashdot. Add Linux version/software versions to this post and any future posts please. It seems BIND was unable to connect to that IP. Could be a transient error. Is it your BIND configured for IPv6 only or is the IPv4 interface down? Have you allowed besides UDP/53, TCP/53, if using firewall rules? Test 198.41.0.4 with a dig/nslookup from the BIND machine

    – Rui F Ribeiro
    Jun 17 '16 at 10:30













  • Have you restarted named?

    – Rui F Ribeiro
    Jun 17 '16 at 10:46











  • Several times, same problem

    – gedO
    Jun 17 '16 at 10:47











  • what does sudo tcpdump -nvvv host 198.41.0.4 says? leave it running until you have a couple of answers.

    – Rui F Ribeiro
    Jun 20 '16 at 13:12











  • Tcpdump captures: pastebin.com/77cLNBk4

    – gedO
    Jun 20 '16 at 13:27

















Hi welcome to slashdot. Add Linux version/software versions to this post and any future posts please. It seems BIND was unable to connect to that IP. Could be a transient error. Is it your BIND configured for IPv6 only or is the IPv4 interface down? Have you allowed besides UDP/53, TCP/53, if using firewall rules? Test 198.41.0.4 with a dig/nslookup from the BIND machine

– Rui F Ribeiro
Jun 17 '16 at 10:30







Hi welcome to slashdot. Add Linux version/software versions to this post and any future posts please. It seems BIND was unable to connect to that IP. Could be a transient error. Is it your BIND configured for IPv6 only or is the IPv4 interface down? Have you allowed besides UDP/53, TCP/53, if using firewall rules? Test 198.41.0.4 with a dig/nslookup from the BIND machine

– Rui F Ribeiro
Jun 17 '16 at 10:30















Have you restarted named?

– Rui F Ribeiro
Jun 17 '16 at 10:46





Have you restarted named?

– Rui F Ribeiro
Jun 17 '16 at 10:46













Several times, same problem

– gedO
Jun 17 '16 at 10:47





Several times, same problem

– gedO
Jun 17 '16 at 10:47













what does sudo tcpdump -nvvv host 198.41.0.4 says? leave it running until you have a couple of answers.

– Rui F Ribeiro
Jun 20 '16 at 13:12





what does sudo tcpdump -nvvv host 198.41.0.4 says? leave it running until you have a couple of answers.

– Rui F Ribeiro
Jun 20 '16 at 13:12













Tcpdump captures: pastebin.com/77cLNBk4

– gedO
Jun 20 '16 at 13:27





Tcpdump captures: pastebin.com/77cLNBk4

– gedO
Jun 20 '16 at 13:27










1 Answer
1






active

oldest

votes


















0














I would bet on a transient error, however if the command tools work, and you have this error something is amiss. Maybe a BIND bug, maybe some firewall configuration (inspectors)



Your OS and BIND are quite old and EOL (2013 since it is the testing branch).



I would upgrade both urgently; if you have not kernels and BIND compiled by hand, they have already a couple nasty bugs that can be explored remotely.



If the issue continues to be present, then I would debug further on the problem.






share|improve this answer





















  • 1





    Thank you. I will upgrade distribution and bind ant let you know

    – gedO
    Jun 17 '16 at 10:51











  • This weekend I have upgraded system from Debian 6 to Debian 7. Bind installed version 1:9.8.4.dfsg.P1-6+nm, but still getting same error.

    – gedO
    Jun 20 '16 at 12:14











  • Interesting. While we did not deleted the hints about your servers, it seemed to me I could connect to your powerdns server, but not your BIND server from the outside. A chance is also increasing the debug level of BIND, or increasing monitoring in some other way. Do you have firewalls in the way to outside, PIXes or ASAs? Why not Debian 8? I am running it here.

    – Rui F Ribeiro
    Jun 20 '16 at 12:41













  • Yes, I have two DNS servers, one BIND ant second PowerDNS. ip route get shows that to that IP address I go over public IP address, so no firewall is in the way

    – gedO
    Jun 20 '16 at 12:47











  • Having a route of public IP addresses is no guarantee there are no firewalls, however I do trust you know better about your setup. I am a little busy right now, will came back later with ideas for debugging.

    – Rui F Ribeiro
    Jun 20 '16 at 12:49













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1 Answer
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active

oldest

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1 Answer
1






active

oldest

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active

oldest

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active

oldest

votes









0














I would bet on a transient error, however if the command tools work, and you have this error something is amiss. Maybe a BIND bug, maybe some firewall configuration (inspectors)



Your OS and BIND are quite old and EOL (2013 since it is the testing branch).



I would upgrade both urgently; if you have not kernels and BIND compiled by hand, they have already a couple nasty bugs that can be explored remotely.



If the issue continues to be present, then I would debug further on the problem.






share|improve this answer





















  • 1





    Thank you. I will upgrade distribution and bind ant let you know

    – gedO
    Jun 17 '16 at 10:51











  • This weekend I have upgraded system from Debian 6 to Debian 7. Bind installed version 1:9.8.4.dfsg.P1-6+nm, but still getting same error.

    – gedO
    Jun 20 '16 at 12:14











  • Interesting. While we did not deleted the hints about your servers, it seemed to me I could connect to your powerdns server, but not your BIND server from the outside. A chance is also increasing the debug level of BIND, or increasing monitoring in some other way. Do you have firewalls in the way to outside, PIXes or ASAs? Why not Debian 8? I am running it here.

    – Rui F Ribeiro
    Jun 20 '16 at 12:41













  • Yes, I have two DNS servers, one BIND ant second PowerDNS. ip route get shows that to that IP address I go over public IP address, so no firewall is in the way

    – gedO
    Jun 20 '16 at 12:47











  • Having a route of public IP addresses is no guarantee there are no firewalls, however I do trust you know better about your setup. I am a little busy right now, will came back later with ideas for debugging.

    – Rui F Ribeiro
    Jun 20 '16 at 12:49


















0














I would bet on a transient error, however if the command tools work, and you have this error something is amiss. Maybe a BIND bug, maybe some firewall configuration (inspectors)



Your OS and BIND are quite old and EOL (2013 since it is the testing branch).



I would upgrade both urgently; if you have not kernels and BIND compiled by hand, they have already a couple nasty bugs that can be explored remotely.



If the issue continues to be present, then I would debug further on the problem.






share|improve this answer





















  • 1





    Thank you. I will upgrade distribution and bind ant let you know

    – gedO
    Jun 17 '16 at 10:51











  • This weekend I have upgraded system from Debian 6 to Debian 7. Bind installed version 1:9.8.4.dfsg.P1-6+nm, but still getting same error.

    – gedO
    Jun 20 '16 at 12:14











  • Interesting. While we did not deleted the hints about your servers, it seemed to me I could connect to your powerdns server, but not your BIND server from the outside. A chance is also increasing the debug level of BIND, or increasing monitoring in some other way. Do you have firewalls in the way to outside, PIXes or ASAs? Why not Debian 8? I am running it here.

    – Rui F Ribeiro
    Jun 20 '16 at 12:41













  • Yes, I have two DNS servers, one BIND ant second PowerDNS. ip route get shows that to that IP address I go over public IP address, so no firewall is in the way

    – gedO
    Jun 20 '16 at 12:47











  • Having a route of public IP addresses is no guarantee there are no firewalls, however I do trust you know better about your setup. I am a little busy right now, will came back later with ideas for debugging.

    – Rui F Ribeiro
    Jun 20 '16 at 12:49
















0












0








0







I would bet on a transient error, however if the command tools work, and you have this error something is amiss. Maybe a BIND bug, maybe some firewall configuration (inspectors)



Your OS and BIND are quite old and EOL (2013 since it is the testing branch).



I would upgrade both urgently; if you have not kernels and BIND compiled by hand, they have already a couple nasty bugs that can be explored remotely.



If the issue continues to be present, then I would debug further on the problem.






share|improve this answer















I would bet on a transient error, however if the command tools work, and you have this error something is amiss. Maybe a BIND bug, maybe some firewall configuration (inspectors)



Your OS and BIND are quite old and EOL (2013 since it is the testing branch).



I would upgrade both urgently; if you have not kernels and BIND compiled by hand, they have already a couple nasty bugs that can be explored remotely.



If the issue continues to be present, then I would debug further on the problem.







share|improve this answer














share|improve this answer



share|improve this answer








edited Feb 3 '18 at 1:28

























answered Jun 17 '16 at 10:49









Rui F RibeiroRui F Ribeiro

40.1k1479136




40.1k1479136








  • 1





    Thank you. I will upgrade distribution and bind ant let you know

    – gedO
    Jun 17 '16 at 10:51











  • This weekend I have upgraded system from Debian 6 to Debian 7. Bind installed version 1:9.8.4.dfsg.P1-6+nm, but still getting same error.

    – gedO
    Jun 20 '16 at 12:14











  • Interesting. While we did not deleted the hints about your servers, it seemed to me I could connect to your powerdns server, but not your BIND server from the outside. A chance is also increasing the debug level of BIND, or increasing monitoring in some other way. Do you have firewalls in the way to outside, PIXes or ASAs? Why not Debian 8? I am running it here.

    – Rui F Ribeiro
    Jun 20 '16 at 12:41













  • Yes, I have two DNS servers, one BIND ant second PowerDNS. ip route get shows that to that IP address I go over public IP address, so no firewall is in the way

    – gedO
    Jun 20 '16 at 12:47











  • Having a route of public IP addresses is no guarantee there are no firewalls, however I do trust you know better about your setup. I am a little busy right now, will came back later with ideas for debugging.

    – Rui F Ribeiro
    Jun 20 '16 at 12:49
















  • 1





    Thank you. I will upgrade distribution and bind ant let you know

    – gedO
    Jun 17 '16 at 10:51











  • This weekend I have upgraded system from Debian 6 to Debian 7. Bind installed version 1:9.8.4.dfsg.P1-6+nm, but still getting same error.

    – gedO
    Jun 20 '16 at 12:14











  • Interesting. While we did not deleted the hints about your servers, it seemed to me I could connect to your powerdns server, but not your BIND server from the outside. A chance is also increasing the debug level of BIND, or increasing monitoring in some other way. Do you have firewalls in the way to outside, PIXes or ASAs? Why not Debian 8? I am running it here.

    – Rui F Ribeiro
    Jun 20 '16 at 12:41













  • Yes, I have two DNS servers, one BIND ant second PowerDNS. ip route get shows that to that IP address I go over public IP address, so no firewall is in the way

    – gedO
    Jun 20 '16 at 12:47











  • Having a route of public IP addresses is no guarantee there are no firewalls, however I do trust you know better about your setup. I am a little busy right now, will came back later with ideas for debugging.

    – Rui F Ribeiro
    Jun 20 '16 at 12:49










1




1





Thank you. I will upgrade distribution and bind ant let you know

– gedO
Jun 17 '16 at 10:51





Thank you. I will upgrade distribution and bind ant let you know

– gedO
Jun 17 '16 at 10:51













This weekend I have upgraded system from Debian 6 to Debian 7. Bind installed version 1:9.8.4.dfsg.P1-6+nm, but still getting same error.

– gedO
Jun 20 '16 at 12:14





This weekend I have upgraded system from Debian 6 to Debian 7. Bind installed version 1:9.8.4.dfsg.P1-6+nm, but still getting same error.

– gedO
Jun 20 '16 at 12:14













Interesting. While we did not deleted the hints about your servers, it seemed to me I could connect to your powerdns server, but not your BIND server from the outside. A chance is also increasing the debug level of BIND, or increasing monitoring in some other way. Do you have firewalls in the way to outside, PIXes or ASAs? Why not Debian 8? I am running it here.

– Rui F Ribeiro
Jun 20 '16 at 12:41







Interesting. While we did not deleted the hints about your servers, it seemed to me I could connect to your powerdns server, but not your BIND server from the outside. A chance is also increasing the debug level of BIND, or increasing monitoring in some other way. Do you have firewalls in the way to outside, PIXes or ASAs? Why not Debian 8? I am running it here.

– Rui F Ribeiro
Jun 20 '16 at 12:41















Yes, I have two DNS servers, one BIND ant second PowerDNS. ip route get shows that to that IP address I go over public IP address, so no firewall is in the way

– gedO
Jun 20 '16 at 12:47





Yes, I have two DNS servers, one BIND ant second PowerDNS. ip route get shows that to that IP address I go over public IP address, so no firewall is in the way

– gedO
Jun 20 '16 at 12:47













Having a route of public IP addresses is no guarantee there are no firewalls, however I do trust you know better about your setup. I am a little busy right now, will came back later with ideas for debugging.

– Rui F Ribeiro
Jun 20 '16 at 12:49







Having a route of public IP addresses is no guarantee there are no firewalls, however I do trust you know better about your setup. I am a little busy right now, will came back later with ideas for debugging.

– Rui F Ribeiro
Jun 20 '16 at 12:49




















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