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Old 3rd April 2011, 13:33
stigge2000 stigge2000 is offline
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Default Something blocking port 53

HI!

I think there must be a proggy that blocks port 53, but i dont know what.

I have talked to the guys where i rent the server, and they assure me that there is NO firewall between me and the web, the only firewall i got is the one i installs myself.

I have uninstalled IPTABLES, disabled SELINUX and inactivated the ISPCONFIG firewall..
and after i rebooted i ran NMAP to check, here's the result:

Quote:
[root@dns1 ~]# nmap -sU -sT -p U:1-100,T:1-100 87.237.215.243

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2011-04-03 13:18 CEST
Interesting ports on ns2.mydomain.se (87.237.215.243):
Not shown: 196 closed ports
PORT STATE SERVICE
21/tcp open ftp
22/tcp open ssh
25/tcp open smtp
80/tcp open http

Nmap finished: 1 IP address (1 host up) scanned in 0.020 seconds
and then i tried to DIG my public IP:

Quote:
[root@dns1 ~]# dig @87.237.215.243 stjarnas.se

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> @87.237.215.243 mydomain.se
; (1 server found)
;; global options: printcmd
;; connection timed out; no servers could be reached
and then i listed some stuff:

Quote:
[root@dns1 ~]# lsof -i -n -P
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
portmap 2222 rpc 3u IPv4 5544 UDP *:111
portmap 2222 rpc 4u IPv4 5545 TCP *:111 (LISTEN)
rpc.statd 2285 rpcuser 3u IPv4 5657 UDP *:768
rpc.statd 2285 rpcuser 6u IPv4 5647 UDP *:765
rpc.statd 2285 rpcuser 7u IPv4 5671 TCP *:771 (LISTEN)
sshd 2552 root 3u IPv6 7559 TCP *:22 (LISTEN)
cupsd 2565 root 4u IPv4 7602 TCP 127.0.0.1:631 (LISTEN)
cupsd 2565 root 6u IPv4 7605 UDP *:631
clamd 2581 clamav 5u IPv4 7651 TCP 127.0.0.1:3310 (LISTEN)
mysqld 2666 mysql 10u IPv4 7758 TCP *:3306 (LISTEN)
mysqld 2666 mysql 95u IPv4 14106 TCP 127.0.0.1:3306->127.0.0.1:39287 (ESTABLISHED)
mysqld 2666 mysql 96u IPv4 14107 TCP 127.0.0.1:3306->127.0.0.1:39288 (ESTABLISHED)
dovecot 2698 root 6u IPv4 7805 TCP *:143 (LISTEN)
dovecot 2698 root 7u IPv6 7806 TCP *:143 (LISTEN)
dovecot 2698 root 8u IPv4 7807 TCP *:993 (LISTEN)
dovecot 2698 root 9u IPv6 7808 TCP *:993 (LISTEN)
dovecot 2698 root 10u IPv4 7809 TCP *:110 (LISTEN)
dovecot 2698 root 11u IPv6 7810 TCP *:110 (LISTEN)
dovecot 2698 root 12u IPv4 7811 TCP *:995 (LISTEN)
dovecot 2698 root 13u IPv6 7812 TCP *:995 (LISTEN)
amavisd 2744 amavis 6u IPv4 8000 TCP 127.0.0.1:10024 (LISTEN)
master 2814 root 11u IPv4 8256 TCP *:25 (LISTEN)
master 2814 root 101u IPv4 8374 TCP 127.0.0.1:10025 (LISTEN)
amavisd 2875 amavis 6u IPv4 8000 TCP 127.0.0.1:10024 (LISTEN)
amavisd 2875 amavis 14u IPv4 14105 TCP 127.0.0.1:39287->127.0.0.1:3306 (ESTABLISHED)
amavisd 2876 amavis 6u IPv4 8000 TCP 127.0.0.1:10024 (LISTEN)
amavisd 2876 amavis 14u IPv4 14104 TCP 127.0.0.1:39288->127.0.0.1:3306 (ESTABLISHED)
httpd 2878 root 3u IPv6 8556 TCP *:80 (LISTEN)
httpd 2878 root 5u IPv6 8565 TCP *:8081 (LISTEN)
httpd 2878 root 7u IPv6 8572 TCP *:8080 (LISTEN)
httpd 2882 apache 3u IPv6 8556 TCP *:80 (LISTEN)
httpd 2882 apache 5u IPv6 8565 TCP *:8081 (LISTEN)
httpd 2882 apache 7u IPv6 8572 TCP *:8080 (LISTEN)
pure-ftpd 2894 root 4u IPv4 8645 TCP *:21 (LISTEN)
pure-ftpd 2894 root 5u IPv6 8646 TCP *:21 (LISTEN)
avahi-dae 3000 avahi 13u IPv4 8905 UDP *:5353
avahi-dae 3000 avahi 14u IPv6 8906 UDP *:5353
avahi-dae 3000 avahi 15u IPv4 8907 UDP *:59623
avahi-dae 3000 avahi 16u IPv6 8908 UDP *:47608
httpd 3089 apache 3u IPv6 8556 TCP *:80 (LISTEN)
httpd 3089 apache 5u IPv6 8565 TCP *:8081 (LISTEN)
httpd 3089 apache 7u IPv6 8572 TCP *:8080 (LISTEN)
httpd 3090 apache 3u IPv6 8556 TCP *:80 (LISTEN)
httpd 3090 apache 5u IPv6 8565 TCP *:8081 (LISTEN)
httpd 3090 apache 7u IPv6 8572 TCP *:8080 (LISTEN)
httpd 3091 apache 3u IPv6 8556 TCP *:80 (LISTEN)
httpd 3091 apache 5u IPv6 8565 TCP *:8081 (LISTEN)
httpd 3091 apache 7u IPv6 8572 TCP *:8080 (LISTEN)
httpd 3092 apache 3u IPv6 8556 TCP *:80 (LISTEN)
httpd 3092 apache 5u IPv6 8565 TCP *:8081 (LISTEN)
httpd 3092 apache 7u IPv6 8572 TCP *:8080 (LISTEN)
httpd 3093 apache 3u IPv6 8556 TCP *:80 (LISTEN)
httpd 3093 apache 5u IPv6 8565 TCP *:8081 (LISTEN)
httpd 3093 apache 7u IPv6 8572 TCP *:8080 (LISTEN)
httpd 3094 apache 3u IPv6 8556 TCP *:80 (LISTEN)
httpd 3094 apache 5u IPv6 8565 TCP *:8081 (LISTEN)
httpd 3094 apache 7u IPv6 8572 TCP *:8080 (LISTEN)
httpd 3095 apache 3u IPv6 8556 TCP *:80 (LISTEN)
httpd 3095 apache 5u IPv6 8565 TCP *:8081 (LISTEN)
httpd 3095 apache 7u IPv6 8572 TCP *:8080 (LISTEN)
httpd 3096 apache 3u IPv6 8556 TCP *:80 (LISTEN)
httpd 3096 apache 5u IPv6 8565 TCP *:8081 (LISTEN)
httpd 3096 apache 7u IPv6 8572 TCP *:8080 (LISTEN)
sshd 3131 root 3u IPv6 9191 TCP 87.237.215.243:22->90.227.9.150:23918 (ESTABLISHED)
pop3-logi 7223 dovecot 4u IPv4 7809 TCP *:110 (LISTEN)
pop3-logi 7223 dovecot 5u IPv6 7810 TCP *:110 (LISTEN)
pop3-logi 7223 dovecot 6u IPv4 7811 TCP *:995 (LISTEN)
pop3-logi 7223 dovecot 7u IPv6 7812 TCP *:995 (LISTEN)
named 7788 named 20u IPv6 26828 TCP [::1]:53 (LISTEN)
named 7788 named 21u IPv4 26830 TCP 127.0.0.1:53 (LISTEN)
named 7788 named 22u IPv4 26831 TCP 127.0.0.1:953 (LISTEN)
named 7788 named 23u IPv6 26832 TCP [::1]:953 (LISTEN)
named 7788 named 512u IPv6 26827 UDP [::1]:53
named 7788 named 513u IPv4 26829 UDP 127.0.0.1:53
imap-logi 8444 dovecot 4u IPv4 7805 TCP *:143 (LISTEN)
imap-logi 8444 dovecot 5u IPv6 7806 TCP *:143 (LISTEN)
imap-logi 8444 dovecot 6u IPv4 7807 TCP *:993 (LISTEN)
imap-logi 8444 dovecot 7u IPv6 7808 TCP *:993 (LISTEN)
pop3-logi 8447 dovecot 4u IPv4 7809 TCP *:110 (LISTEN)
pop3-logi 8447 dovecot 5u IPv6 7810 TCP *:110 (LISTEN)
pop3-logi 8447 dovecot 6u IPv4 7811 TCP *:995 (LISTEN)
pop3-logi 8447 dovecot 7u IPv6 7812 TCP *:995 (LISTEN)
imap-logi 8518 dovecot 4u IPv4 7805 TCP *:143 (LISTEN)
imap-logi 8518 dovecot 5u IPv6 7806 TCP *:143 (LISTEN)
imap-logi 8518 dovecot 6u IPv4 7807 TCP *:993 (LISTEN)
imap-logi 8518 dovecot 7u IPv6 7808 TCP *:993 (LISTEN)
smtpd 8587 postfix 6u IPv4 8256 TCP *:25 (LISTEN)
smtpd 8633 postfix 6u IPv4 8256 TCP *:25 (LISTEN)
smtpd 8633 postfix 13u IPv4 29338 TCP 87.237.215.243:25->95.179.84.80:25706 (ESTABLISHED)
smtpd 8633 postfix 17u IPv4 29345 UDP 87.237.215.243:40839->64.59.135.133:53
smtpd 8633 postfix 18u IPv4 29346 UDP 87.237.215.243:50465->64.59.135.135:53
pop3-logi 8737 dovecot 4u IPv4 7809 TCP *:110 (LISTEN)
pop3-logi 8737 dovecot 5u IPv6 7810 TCP *:110 (LISTEN)
pop3-logi 8737 dovecot 6u IPv4 7811 TCP *:995 (LISTEN)
pop3-logi 8737 dovecot 7u IPv6 7812 TCP *:995 (LISTEN)
imap-logi 8738 dovecot 4u IPv4 7805 TCP *:143 (LISTEN)
imap-logi 8738 dovecot 5u IPv6 7806 TCP *:143 (LISTEN)
imap-logi 8738 dovecot 6u IPv4 7807 TCP *:993 (LISTEN)
imap-logi 8738 dovecot 7u IPv6 7808 TCP *:993 (LISTEN)
What can be blocking my 53 port??
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