Author Topic: issue not resolving?  (Read 346 times)

killmasta93

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issue not resolving?
« on: December 22, 2020, 07:47:46 pm »
Hi currently running zentyal 6.2 what i noticed is that cannot seem to resolve by IP but by name it works
currently tick the box  Dynamic DNS Options but not sure what i missed?


Code: [Select]
C:\Users\administrador.xx>nslookup
Servidor predeterminado:  apolo.xx.local
Address:  192.168.100.200

> pc-23
Servidor:  apolo.xxx.local
Address:  192.168.100.200

Nombre:  pc-23.xx.local
Address:  192.168.100.59

> 192.168.100.59
Servidor:  apolo.xx.local
Address:  192.168.100.200

*** apolo.xx.local no encuentra 192.168.100.59: Non-existent domain

just checked the logs and found this

Code: [Select]
Dec 22 13:51:34 apolo dhcpd[17404]: execute: /usr/share/zentyal-dhcp/dhcp-dyndns.sh exit status 32512
and whats even odd is that i check the service of DHCP which shows on but on the WebGui shows stopped

Code: [Select]
root@apolo:~# service isc-dhcp-server status
● isc-dhcp-server.service - ISC DHCP IPv4 server
   Loaded: loaded (/lib/systemd/system/isc-dhcp-server.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2020-12-22 13:50:16 -05; 3min 26s ago
     Docs: man:dhcpd(8)
 Main PID: 17404 (dhcpd)
    Tasks: 1 (limit: 4620)
   CGroup: /system.slice/isc-dhcp-server.service
           └─17404 dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcpd.pid -cf /etc/dhcp/dhcpd.conf

Dec 22 13:53:30 apolo dhcpd[17404]: DHCPACK on 192.168.100.48 to f8:1f:32:c6:19:b4 via eth0
Dec 22 13:53:30 apolo dhcpd[17404]: Commit: IP: 192.168.100.49 DHCID: c0:cb:38:15:96:79 Name: PC-07
Dec 22 13:53:30 apolo dhcpd[17404]: execute_statement argv[0] = /usr/share/zentyal-dhcp/dhcp-dyndns.sh
Dec 22 13:53:30 apolo dhcpd[17404]: execute_statement argv[1] = add
Dec 22 13:53:30 apolo dhcpd[17404]: execute_statement argv[2] = 192.168.100.49
Dec 22 13:53:30 apolo dhcpd[17404]: execute_statement argv[3] = c0:cb:38:15:96:79
Dec 22 13:53:30 apolo dhcpd[17404]: execute_statement argv[4] = PC-07
Dec 22 13:53:30 apolo dhcpd[17404]: execute: /usr/share/zentyal-dhcp/dhcp-dyndns.sh exit status 32512
Dec 22 13:53:30 apolo dhcpd[17404]: DHCPREQUEST for 192.168.100.49 from c0:cb:38:15:96:79 (PC-07) via eth0
Dec 22 13:53:30 apolo dhcpd[17404]: DHCPACK on 192.168.100.49 to c0:cb:38:15:96:79 (PC-07) via eth0

https://imgur.com/QtTnZuL.png
« Last Edit: December 22, 2020, 07:55:11 pm by killmasta93 »

killmasta93

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Re: issue not resolving?
« Reply #1 on: December 26, 2020, 02:02:54 am »
bump anyone?
Whats odd is that i added manually i can resolve by IP but by name it says it wont resolve, i tried then the name of the server with the domain and it shows the IP. So i thought it was the installation so i did another installation from zero and same issue

badapple7

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Re: issue not resolving?
« Reply #2 on: December 26, 2020, 03:46:48 am »
post your config code of bind9 isc-dhcp and samba.....

killmasta93

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Re: issue not resolving?
« Reply #3 on: December 26, 2020, 04:11:47 am »
thanks for the reply,

Code: [Select]
root@apolo:~# cat /etc/dhcp/dhcpd.conf
# DHCP server is authoritative for all networks
authoritative;

# extra options
# RFC3442 routes
option rfc3442-classless-static-routes code 121 = array of inxxxer 8;
# MS routes
option ms-classless-static-routes code 249 = array of inxxxer 8;
# Cisco IP phones
option voip-tftp-servers code 150 = array of ip-address;
option shoretel-director-server code 155 = ip-address;

pid-file-name "/var/run/dhcp-server/dhcpd.pid";

ddns-update-style    none;
ddns-updates         on;
update-static-leases on;

option domain-name-servers 127.0.0.1;

allow booting;
allow bootp;

default-lease-time 1800;
max-lease-time 7200;

include "/etc/dhcp/ddns-keys/keys";

shared-network eth0 {

    subnet 192.168.100.0 netmask 255.255.255.0 {
       
        option routers 192.168.100.1;
        option domain-name "xxx.local";
        option domain-name-servers 192.168.100.200;
        option ntp-servers 192.168.100.200;
        option netbios-name-servers 192.168.100.200;
        option netbios-node-type 8;
        default-lease-time 1800;
        max-lease-time 7200;

        option host-name = config-option server.ddns-hostname;
        ddns-hostname = pick-first-value( option fqdn.hostname,
                                          option host-name,
                                          concat("dhcp-", binary-to-ascii(10, 8, "-", leased-address)));
        ddns-domainname      "xxx.local.";
        zone xxx.local. {
            primary 127.0.0.1;
            key xxx.local;
        }
        zone 100.168.192.in-addr.arpa. {
            primary 127.0.0.1;
            key xxx.local;
        }

        pool {
           

           
            next-server 192.168.100.200;

            range 192.168.100.10 192.168.100.100;
        }
    }

    on commit {
        set noname = concat("dhcp-", binary-to-ascii(10, 8, "-", leased-address));
        set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
        set ClientDHCID = concat (
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,1,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,2,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,3,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,4,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,5,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,6,1))),2)
        );
        set ClientName = pick-first-value(option host-name, config-option-host-name, client-name, noname);
        log(concat("Commit: IP: ", ClientIP, " DHCID: ", ClientDHCID, " Name: ", ClientName));
        execute("/usr/share/zentyal-dhcp/dhcp-dyndns.sh", "add", ClientIP, ClientDHCID, ClientName);
    }

    on release {
        set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
        set ClientDHCID = concat (
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,1,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,2,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,3,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,4,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,5,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,6,1))),2)
        );
        log(concat("Release: IP: ", ClientIP));
        execute("/usr/share/zentyal-dhcp/dhcp-dyndns.sh", "delete", ClientIP, ClientDHCID);
    }

    on expiry {
        set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
        # cannot get a ClientMac here, apparently this only works when actually receiving a packet
        log(concat("Expired: IP: ", ClientIP));
        # cannot get a ClientName here, for some reason that always fails
        execute("/usr/share/zentyal-dhcp/dhcp-dyndns.sh", "delete", ClientIP, "", "0");
    }
   

    group {
        option routers 192.168.100.1;
        option domain-name "xxx.local";
        option domain-name-servers 192.168.100.200;
        option ntp-servers 192.168.100.200;
        option netbios-name-servers 192.168.100.200;
        option netbios-node-type 8;
        default-lease-time 1800;
        max-lease-time 7200;

        option host-name = config-option server.ddns-hostname;
        ddns-hostname = pick-first-value ( host-decl-name,
                                           option fqdn.hostname,
                                           concat("static-", binary-to-ascii(10, 8, "-", leased-address)));
        ddns-domainname      "xxx.local.";
        zone xxx.local. {
            primary 127.0.0.1;
            key xxx.local;
        }
        zone 100.168.192.in-addr.arpa.                       {
            primary 127.0.0.1;
            key xxx.local;
        }

    }

}


# Add option 150 (0x96) and 155 (0x9b)
if exists dhcp-parameter-request-list {
option dhcp-parameter-request-list=concat(option dhcp-parameter-request-list,96,9b);
}

Code: [Select]
root@apolo:~# cat /etc/samba/smb.conf
[global]
    workgroup = xxx
    realm = XXX.LOCAL
    netbios name = apolo
    server string = Zentyal Server
    server role = dc
    server role check:inhibit = yes
    server services = -dns
    server signing = auto
    dsdb:schema update allowed = yes
    ldap server require strong auth = no
    drs:max object sync = 1200

    idmap_ldb:use rfc2307 = yes

    winbind enum users = yes
    winbind enum groups = yes
    template shell = /bin/bash
    template homedir = /home/%U

    rpc server dynamic port range = 49152-65535

    interfaces = lo,eth0
    bind interfaces only = yes

    map to guest = Bad User

    log level = 3
    log file = /var/log/samba/samba.log
    max log size = 100000



    include = /etc/samba/shares.conf




[netlogon]
    path = /var/lib/samba/sysvol/xx.local/scripts
    browseable = no
    read only = yes

[sysvol]
    path = /var/lib/samba/sysvol
    read only = no

Code: [Select]
root@apolo:~# cat /etc/bind/named.conf.local
// Generated by Zentyal

acl "trusted" {
    localhost;
    localnets;
};

acl "internal-local-nets" {
    192.168.100.0/24;
};

dlz "AD DNS Zone" {
    database "dlopen /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so";
};



zone "100.168.192.in-addr.arpa" {
    type master;
    file "/var/lib/bind/db.100.168.192";
    update-policy {
        // The only allowed dynamic updates are PTR records
        grant xxx.local. subdomain 100.168.192.in-addr.arpa. PTR TXT;
        // Grant from localhost
        grant local-ddns zonesub any;
    };
};

zone "10.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "16.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "17.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "18.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "19.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "20.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "21.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "22.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "23.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "24.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "25.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "26.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "27.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "28.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "29.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "30.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "31.172.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};
zone "168.192.in-addr.arpa" {
    type master;
    file "/etc/bind/db.empty";
};

killmasta93

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Re: issue not resolving?
« Reply #4 on: December 26, 2020, 04:25:18 am »
i think the issue is this part

Code: [Select]
Dec 25 22:19:48 apolo dhcpd[1853]: execute: /usr/share/zentyal-dhcp/dhcp-dyndns.sh exit status 32512

but on the dhcp config shows correctly

Code: [Select]
   on release {
        set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
        set ClientDHCID = concat (
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,1,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,2,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,3,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,4,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,5,1))),2), ":",
        suffix (concat ("0", binary-to-ascii (16, 8, "", substring(hardware,6,1))),2)
        );
        log(concat("Release: IP: ", ClientIP));
        execute("/usr/share/zentyal-dhcp/dhcp-dyndns.sh", "delete", ClientIP, ClientDHCID);
    }

and i think the permissions are correct

Code: [Select]
root@apolo:~# ls -l -h /usr/share/zentyal-dhcp/dhcp-dyndns.sh
-rwxr-xr-x 1 root root 4.4K Oct  5 05:05 /usr/share/zentyal-dhcp/dhcp-dyndns.sh


killmasta93

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Re: issue not resolving?
« Reply #5 on: December 26, 2020, 04:48:04 am »
solved it: it was apparmor

do the following it should work

Code: [Select]
ln -s /etc/apparmor.d/usr.sbin.dhcpd /etc/apparmor.d/disable/
apparmor_parser -R /etc/apparmor.d/usr.sbin.dhcpd

and reconnect your devices should see the logs correctly