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Vsys: wijziging interne DNS server

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Vsys: wijziging interne DNS server

Posted: 24 Mar 2006, 21:06
by DSmarty
Mensen,

De interne DNS server is gewijzigd in 192.168.252.37
Deze kan je het beste gebruiken als DNS server.

Extern is deze ook bereikbaar op 81.171.83.70, maar doet hij geen recursive lookups. Dit ivm beveiliging (voorkoming van DDOS via DNS spoofed-recursive lookups)

Posted: 25 Mar 2006, 23:29
by JJapie
Ik heb rare problemen met de mailserver, mails worden niet meer verzonden ofzo.. Hieronder een stukje uit de SMTP log van Merak:

Code: Select all

SYSTEM          [000008A8] Sat, 25 Mar 2006 22:13:02 +0100 Client session Disconnected
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 Connected
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 >>> 220 mail.best1337.nl ESMTP Merak 8.0.3; Sat, 25 Mar 2006 22:18:45 +0100
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 <<< HELO janjaap
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 >>> 250 mail.best1337.nl Hello janjaap [84.245.14.209], pleased to meet you.
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 <<< MAIL FROM: <janjaap@janjaap.net>
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 >>> 250 2.1.0 <janjaap@janjaap.net>... Sender ok
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 <<< RCPT TO: <tine@vandonselaarbv.nl>
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 >>> 250 2.1.5 <tine@vandonselaarbv.nl>... Recipient ok; will forward
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 <<< DATA
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 >>> 354 Enter mail, end with "." on a line by itself
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 *** <janjaap@janjaap.net> <tine@vandonselaarbv.nl> 1 10735 00:00:00 OK
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 >>> 250 2.6.0 10735 bytes received in 00:00:00; Message accepted for delivery
SYSTEM          [00000CE4] Sat, 25 Mar 2006 22:18:45 +0100 Client session DNS server 192.168.252.1 issuing MX query for "vandonselaarbv.nl"
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 <<< QUIT
84.245.14.209   [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 >>> 221 2.0.0 mail.best1337.nl closing connection
SYSTEM          [000003F8] Sat, 25 Mar 2006 22:18:45 +0100 Disconnected
SYSTEM          [00000CE4] Sat, 25 Mar 2006 22:18:45 +0100 Client session DNS server query failed
SYSTEM          [00000CE4] Sat, 25 Mar 2006 22:18:45 +0100 Client session Disconnected
SYSTEM          [00000FF4] Sat, 25 Mar 2006 22:21:04 +0100 Client session DNS server 192.168.252.1 issuing MX query for "vandonselaarbv.nl"
SYSTEM          [00000FF4] Sat, 25 Mar 2006 22:21:04 +0100 Client session DNS server query failed
SYSTEM          [00000FF4] Sat, 25 Mar 2006 22:21:05 +0100 Client session Disconnected
SYSTEM          [000009A8] Sat, 25 Mar 2006 22:23:04 +0100 Client session DNS server 192.168.252.1 issuing MX query for "vandonselaarbv.nl"
SYSTEM          [000009A8] Sat, 25 Mar 2006 22:23:04 +0100 Client session DNS server query failed
SYSTEM          [000009A8] Sat, 25 Mar 2006 22:23:04 +0100 Client session Disconnected
SYSTEM          [00000000] Sat, 25 Mar 2006 22:25:29 +0100 SMTP Service started
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:14 +0100 Connected
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:14 +0100 >>> 220 mail.best1337.nl ESMTP Merak 8.0.3; Sat, 25 Mar 2006 22:26:14 +0100
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:15 +0100 <<< HELO janjaap
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:15 +0100 >>> 250 mail.best1337.nl Hello janjaap [84.245.14.209], pleased to meet you.
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:15 +0100 <<< MAIL FROM: <janjaap@janjaap.net>
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:15 +0100 >>> 250 2.1.0 <janjaap@janjaap.net>... Sender ok
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:16 +0100 <<< RCPT TO: <tine@vandonselaarbv.nl>
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:16 +0100 >>> 250 2.1.5 <tine@vandonselaarbv.nl>... Recipient ok; will forward
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:16 +0100 <<< DATA
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:16 +0100 >>> 354 Enter mail, end with "." on a line by itself
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:17 +0100 *** <janjaap@janjaap.net> <tine@vandonselaarbv.nl> 1 10739 00:00:00 OK
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:17 +0100 >>> 250 2.6.0 10739 bytes received in 00:00:00; Message accepted for delivery
SYSTEM          [00000BC4] Sat, 25 Mar 2006 22:26:17 +0100 Client session DNS server 192.168.252.1 issuing MX query for "vandonselaarbv.nl"
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:17 +0100 <<< QUIT
SYSTEM          [00000BC4] Sat, 25 Mar 2006 22:26:17 +0100 Client session DNS server query failed
84.245.14.209   [00000AF0] Sat, 25 Mar 2006 22:26:17 +0100 >>> 221 2.0.0 mail.best1337.nl closing connection
SYSTEM          [00000AF0] Sat, 25 Mar 2006 22:26:17 +0100 Disconnected
SYSTEM          [00000BC4] Sat, 25 Mar 2006 22:26:17 +0100 Client session Disconnected
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 Connected
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 >>> 220 mail.best1337.nl ESMTP Merak 8.0.3; Sat, 25 Mar 2006 22:28:16 +0100
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 <<< HELO janjaap
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 >>> 250 mail.best1337.nl Hello janjaap [84.245.14.209], pleased to meet you.
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 <<< MAIL FROM: <janjaap@janjaap.net>
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 >>> 250 2.1.0 <janjaap@janjaap.net>... Sender ok
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 <<< RCPT TO: <jcjdonse@cs.uu.nl>
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 >>> 250 2.1.5 <jcjdonse@cs.uu.nl>... Recipient ok; will forward
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 <<< DATA
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 >>> 354 Enter mail, end with "." on a line by itself
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 *** <janjaap@janjaap.net> <jcjdonse@cs.uu.nl> 1 1209 00:00:00 OK
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 >>> 250 2.6.0 1209 bytes received in 00:00:00; Message accepted for delivery
SYSTEM          [00000BE4] Sat, 25 Mar 2006 22:28:16 +0100 Client session DNS server 192.168.252.1 issuing MX query for "cs.uu.nl"
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 <<< QUIT
84.245.14.209   [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 >>> 221 2.0.0 mail.best1337.nl closing connection
SYSTEM          [000004A8] Sat, 25 Mar 2006 22:28:16 +0100 Disconnected
SYSTEM          [00000BE4] Sat, 25 Mar 2006 22:28:16 +0100 Client session DNS server query failed
SYSTEM          [00000BE4] Sat, 25 Mar 2006 22:28:17 +0100 Client session Disconnected
SYSTEM          [00000C8C] Sat, 25 Mar 2006 22:28:22 +0100 Client session DNS server 192.168.252.1 issuing MX query for "vandonselaarbv.nl"
SYSTEM          [00000C8C] Sat, 25 Mar 2006 22:28:22 +0100 Client session DNS server query failed
SYSTEM          [00000C8C] Sat, 25 Mar 2006 22:28:22 +0100 Client session Disconnected
Rare is dat dat ding mekkert over een DNS server @ 192.168.252.1 terwijl ik de DNS op het adres uit de TS heb staan.. :?

Posted: 26 Mar 2006, 17:52
by DSmarty
Hoe bedoel je die laatste zin ?
Ik zal even kijken of recursive aanstaat vanaf 192.168.0.0/16

Posted: 26 Mar 2006, 19:28
by JJapie
Ik bedoel dat ik de DNS bij de eigenschappen van de netwerkkaart heb ingesteld op het IP-adres wat in de startpost vermeld staat. Merak loopt ondanks dit nog te mekkeren over dat de DNS op 192.168.252.1 staat (de oude instelling xeg maar) - ook na een reboot nog. Het lijkt dus ofdat Merak nog de oude DNS gebruikt, waardoor om onduidelijke redenen er geen emails verstuurd worden (ze komen iig niet aan als ik ze verstuur via de mailserver).

Posted: 26 Mar 2006, 20:07
by DSmarty
Merak gebruikt statische DNS, moet je dus even aanpassen in de config.

Re: Vsys: wijziging interne DNS server

Posted: 26 Mar 2006, 21:36
by Xaverius
DSmarty wrote:Mensen,

De interne DNS server is gewijzigd in 192.168.252.37
Deze kan je het beste gebruiken als DNS server.

Extern is deze ook bereikbaar op 81.171.83.70, maar doet hij geen recursive lookups. Dit ivm beveiliging (voorkoming van DDOS via DNS spoofed-recursive lookups)
In de DNS-zone staat bij mij nog 192.168.252.32. Moet ik dit nu wijzigen? Want ik heb verder volgens mij daar geen optie voor. Ik kan alleen op de knop "default" klikken, of zie weer iets over het hoofd 8)7

Posted: 26 Mar 2006, 22:59
by JJapie
DSmarty wrote:Merak gebruikt statische DNS, moet je dus even aanpassen in de config.
Ok, zal ik zo eens proberen dan :)

Posted: 27 Mar 2006, 09:04
by JJapie
Het is gefixed :)

Nu komt het volgende probleem in de logs naar voren:

Code: Select all

SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:16 +0200 Client session DNS server 192.168.252.37 issuing MX query for "dsmarty.com"
SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:16 +0200 Client session DNS server responded with 0 (OK) [1]
SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:16 +0200 Client session Connecting to "mail.dsmarty.com"
SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:17 +0200 Client session Could not connect
SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:17 +0200 Client session Reconnecting to "mail.dsmarty.com"
SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:18 +0200 Client session Could not connect
SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:18 +0200 Client session Reconnecting to "mail.dsmarty.com"
SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:19 +0200 Client session Could not connect
SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:19 +0200 Client session Reconnecting to "mail.dsmarty.com"
SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:20 +0200 Client session Could not connect
SYSTEM          [0000095C] Mon, 27 Mar 2006 09:19:20 +0200 Client session Disconnected

Posted: 27 Mar 2006, 09:44
by DSmarty
Dat kan kloppen, dat ga ik vandaag fixen :)

Posted: 27 Mar 2006, 10:40
by DSmarty
Kan je eens kijken of het nu wel werkt ? (wel even je DNS-cache legen)

Posted: 27 Mar 2006, 12:40
by JJapie
Werkt!

Code: Select all

SYSTEM          [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session DNS server 192.168.252.37 issuing MX query for "dsmarty.com"
SYSTEM          [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session DNS server responded with 0 (OK) [1]
SYSTEM          [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session Connecting to "mail.dsmarty.com"
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session Connected
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session <<< 220 *********************************************************************
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session >>> EHLO mail.best1337.nl
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session <<< 250 HELP
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session >>> STARTTLS
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session <<< 220 2.0.0 Ready to start TLS
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session >>> EHLO mail.best1337.nl
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session <<< 250 HELP
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session >>> MAIL From:<janjaap@janjaap.net> SIZE=1386 TRANSID=<20060326193041002F@best1337.nl>
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session <<< 250 2.1.0 <janjaap@janjaap.net>... Sender ok
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session >>> RCPT To:<janjaap@dsmarty.com>
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session <<< 250 2.1.5 <janjaap@dsmarty.com>... Recipient ok
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session >>> DATA
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session <<< 354 Enter mail, end with "." on a line by itself
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session <<< 250 2.6.0 1386 bytes received in 00:00:00; Message id FNQ96512 accepted for delivery
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session *** <janjaap@janjaap.net> <janjaap@dsmarty.com> 1 1386 00:00:00 OK
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session >>> QUIT
192.168.252.36  [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session <<< 221 2.0.0 mail.dsmarty.com closing connection
SYSTEM          [00000CF8] Mon, 27 Mar 2006 12:41:16 +0200 Client session Disconnected
Mooi :D
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