Administrace komentářů

Dobry den, chtel by se poradit stim jak spravne nastavit DNS na serveru, vec se ma tak ze mam server na kterem bezi posta stim ze jen nekde jinde u poskytovale domeny domenovy kos ze ktere ho postu stahuji na svuj server a ten dal postu tridi uzivatelum, vse funguje tak jak ma, jedine co se zmenilo v nastaveni je to ze na serveru bezi jeste i webrozhrani pro pristup k poste, tudiz se zmenil MX zaznam u poskytovale na mou verejnou adresu serveru (webmail.domena.cz). Takze kdyz zadam wemail.domena.cz tak mi to leze na muj server a ja muzu na postu. Server postu jeste odesila. Kdyz jsem si dal test DNS tak mi to vypsalo tohle:

Check results for domena.cz

Starting zone checks for domena.cz
Checking zone name
Checking existence of zone

    -> domena.cz.	86400	IN	SOA	domena.cz. root.domena.cz. (
					2008081600	; Serial
					10800	; Refresh
					1800	; Retry
					1209600	; Expire
					604800 )	; Minimum TTL

Checking NS records

    -> domena.cz.	86400	IN	NS	domena.cz.

### Error: Each domain should have at least 2 nameservers  [see RFC1912:2.8 for details]
Checking nameserver authority and synchronization
### Error: Nameserver server doesn't have any valid A records
### Error: Nameserver domena.cz doesn't have any valid A records
Decided to use server (81.114.200.11) for zone check
Checking whether server knows an A record for its own name
### Error: no matching A record found
Checking whether server is able to reverse-map its own IP address

    -> 11.200.114.81.in-addr.arpa.	603351	IN	PTR	ipk043.customer.customer.cz.
    -> ipk043.customer.customer.cz.	597042	IN	A	81.114.200.11

### Warning: 81.114.200.11 for server points back to ipk043.customer.customer.cz  [see RFC1912:2.1 for details]
Checking connectivity with other nameservers

    -> www.ucw.cz.	78643	IN	CNAME	jabberwock.ucw.cz.
    -> jabberwock.ucw.cz.	15920	IN	A	89.250.246.4
    -> atrey.karlin.mff.cuni.cz.	28570	IN	A	195.113.26.193
    -> www.google.com.	166613	IN	CNAME	www.l.google.com.
    -> www.l.google.com.	158	IN	A	209.85.135.147
    -> www.l.google.com.	158	IN	A	209.85.135.104
    -> www.l.google.com.	158	IN	A	209.85.135.99
    -> www.l.google.com.	158	IN	A	209.85.135.103

Checking mapping of localhost

    -> localhost.	604800	IN	A	127.0.0.1
    -> 1.0.0.127.in-addr.arpa.	604800	IN	PTR	localhost.

Fetching zone data for domena.cz
Parsing zone data
Checking consistency of zone records

    domena.cz.	86400	IN	NS	domena.cz.

### Error: Nameserver domena.cz doesn't have any valid A records

    domena.cz.	86400	IN	SOA	domena.cz. root.domena.cz. (
					2008081600	; Serial
					10800	; Refresh
					1800	; Retry
					1209600	; Expire
					604800 )	; Minimum TTL

### Error: No A record for zone origin
Hostmaster e-mail address is root@domena.cz

    -> domena.cz.	86400	IN	MX	10 mail.domena.cz.
    -> mail.domena.cz.	86400	IN	A	192.168.2.10

### Warning: Private addresses shouldn't occur in public zones  [see RFC1918 for details]
### Error: mail.domena.cz (192.168.2.10) has no reverse record  [see RFC1912:2.1 for details]

    domena.cz.	86400	IN	MX	10 mail.domena.cz.
    -> mail.domena.cz.	86400	IN	A	192.168.2.10
    imap.domena.cz.	86400	IN	CNAME	domena.cz.

### Warning: Possibly incorrect overlapping CNAME

    -> domena.cz.	86400	IN	MX	10 mail.domena.cz.
    -> domena.cz.	86400	IN	NS	domena.cz.
    -> domena.cz.	86400	IN	SOA	domena.cz. root.domena.cz. (
					2008081600	; Serial
					10800	; Refresh
					1800	; Retry
					1209600	; Expire
					604800 )	; Minimum TTL
    mail.domena.cz.	86400	IN	A	192.168.2.10
    ns.domena.cz.	86400	IN	A	192.168.2.10
    server.domena.cz.	86400	IN	CNAME	mail.domena.cz.
    -> mail.domena.cz.	86400	IN	A	192.168.2.10
    smtp.domena.cz.	86400	IN	CNAME	domena.cz.

### Warning: Possibly incorrect overlapping CNAME

    -> domena.cz.	86400	IN	MX	10 mail.domena.cz.
    -> domena.cz.	86400	IN	NS	domena.cz.
    -> domena.cz.	86400	IN	SOA	domena.cz. root.domena.cz. (
					2008081600	; Serial
					10800	; Refresh
					1800	; Retry
					1209600	; Expire
					604800 )	; Minimum TTL
    webmail.domena.cz.	86400	IN	A	192.168.2.10

    www.domena.cz.	86400	IN	A	217.11.242.144
    -> 14.24.111.200.in-addr.arpa.	78643	IN	PTR	server20.poskytovatel.cz.
    -> server20.poskytovatel.cz.	271	IN	A	217.11.242.144

### Warning: 200.111.24.14 for www.domena.cz points back to server20.poskytovatel.cz  [see RFC1912:2.1 for details]
Summary: 7 errors, 5 warnings

Tady jsou me konfiguraky:

named.conf

// This is the primary configuration file for the BIND DNS server named.
//
// Please read /usr/share/doc/bind/README.Debian for information on the 
// structure of BIND configuration files in Debian for BIND versions 8.2.1 
// and later, *BEFORE* you customize this configuration file.
//

include "/etc/bind/named.conf.options";

// reduce log verbosity on issues outside our control
logging {
	category lame-servers { null; };
	category cname { null; };
};

// prime the server with knowledge of the root servers
zone "." {
        type hint;
        file "/etc/bind/db.root";
};

// be authoritative for the localhost forward and reverse zones, and for
// broadcast zones as per RFC 1912

zone "localhost" {
        type master;
        file "/etc/bind/db.local";
};

zone "127.in-addr.arpa" {
        type master;
        file "/etc/bind/db.127";
};

zone "0.in-addr.arpa" {
        type master;
        file "/etc/bind/db.0";
};

zone "255.in-addr.arpa" {
        type master;
        file "/etc/bind/db.255";
};

zone "domena.cz" {
        type master;
        file "/etc/bind/named.domena.cz";

// add local zone definitions here
include "/etc/bind/named.conf.local";

named.domena.cz

;
; BIND data file for local loopback interface
;
$TTL 86400
@ IN SOA domena.cz. root.domena.cz. (
2008081600 ; Serial
10800 ; Refresh
1800 ; Retry
1209600	; Expire
604800 ) ; Negative Cache TTL

@ IN NS domena.cz.
@ IN MX 10 mail.domena.cz.
ns IN A 192.168.2.10
mail IN A 192.168.2.10  
webmail IN A 192.168.2.10  
www IN A 200.111.24.14
smtp IN CNAME domena.cz.
imap IN CNAME domena.cz.
server IN CNAME mail.domena.cz. 

Mohl by mi prosim nekdo poradit co kde je nastavene spatne?