Master-Slave-DNS-with-BIND9
===============
Repository ini berisikan instalasi dan konfigurasi Master-Slave DNS pada Bind9
## Task
Instalasi dan Konfigurasi
* BIND9
* Glue Record Domain
Ketentuan pengerjaan:
* Menggunakan 2 VPS dengan OS centos7
* Menggunakan domain utama (domain.tld)
* Menggunakan DNS Server BIND9
* Menggunakan Master Slave Bind9
## Instalasi dan Konfigurasi BIND9 (Master)
#### Step 1: Install BIND9
Untuk melakukan instalasi BIND9 yang pertama adalah melakukan remote ke IP VPS dengan menggunakan SSH
> ```$ ssh root@ipaddress```
Setelah berhasil login ke VPS, lakukan pembaharuan paket/repository dari system operasi Centos7 dengan perintah sebagai berikut:
> ```# yum -y update```
Setelah melakukan update system selanjutnya lakukan install epel-release
> ```# yum install epel-release -y```
Setelah melakukan install epel-release selanjutnya kita install bind9
> ```# yum install bind bind-utils -y```
#### Step 2: Konfigurasi BIND9
Kemudian lakukan backup file konfigurasi bind dengan melakukan copy file tersebut
> ```# cp /etc/named.conf /etc/named.conf.ori```
Lakukan perubahan konfigurasi named.conf dari sisi Master
> ```# vi /etc/named.conf```
Rubah isi dari file tersebut.
> ```
listen-on port 53 { 127.0.0.1; 103.23.20.70;}; ( masukan ip server bind )
listen-on-v6 port 53 { ::1; };
allow-query { 127.0.0.1; 103.23.20.70; any; }; ( masukan ip server bind )
allow-query-cache { 127.0.0.1; 103.23.20.70; any ;}; ( masukan ip server bind )
```
Kemudian masukan konfigurasi Zone Master pada file konfigurasi named.conf
> ```
zone "padiakse.my.id" {
type master; (masukan type disini sebagai master)
file "/var/named/for.dns"; ( Penempatan file zona )
allow-update { 117.53.47.189; }; ( Mengizinkan Update zone ke ip bind slave )
allow-transfer { 117.53.47.189; }; ( Mengizinkan mentransfer zone ke ip bind slave )
also-notify { 117.53.47.189; }; (Melakukan notify setiap kali ada peruabahan zone dari sisi master ke slave)
notify yes;
};
```
Setelah itu buat File Zone sesuai dengan penempatan file Zona pada file konfigurasi named.conf
> ```# vi /var/named/for.dns```
Berikut isi dari file zona Tersebut.
> ```
$TTL 86400
@ IN SOA padiakse.my.id. root.padiakse.my.id. (
2403202148 ;Serial yyMMddhhmm
3600 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL
)
@ IN NS binds1.padiakse.my.id.
@ IN NS binds2.padiakse.my.id.
@ IN A 103.23.20.70
binds1 IN A 103.23.20.70
binds2 IN A 117.53.47.189
bind IN A 117.53.47.189
```
Setelah file Zone selesai kita enable konfigurasi Bind9 Server dan menjalankan servicenya
> ```
# systemctl enable named
# systemctl start named
```
Pastikan service berjalan dengan normal.
> ```
# systemctl status named
● named.service - Berkeley Internet Name Domain (DNS)
Loaded: loaded (/usr/lib/systemd/system/named.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2020-03-24 21:50:22 WIB; 15h ago
Process: 8204 ExecStop=/bin/sh -c /usr/sbin/rndc stop > /dev/null 2>&1 || /bin/kill -TERM $MAINPID (code=exited, status=0/SUCCESS)
Process: 7386 ExecReload=/bin/sh -c /usr/sbin/rndc reload > /dev/null 2>&1 || /bin/kill -HUP $MAINPID (code=exited, status=0/SUCCESS)
Process: 8215 ExecStart=/usr/sbin/named -u named -c ${NAMEDCONF} $OPTIONS (code=exited, status=0/SUCCESS)
Process: 8213 ExecStartPre=/bin/bash -c if [ ! "$DISABLE_ZONE_CHECKING" == "yes" ]; then /usr/sbin/named-checkconf -z "$NAMEDCONF"; else echo "Checking of zone files is disabled"; fi (code=exited, status=0/SUCCESS)
Main PID: 8216 (named)
CGroup: /system.slice/named.service
└─8216 /usr/sbin/named -u named -c /etc/named.conf
```
## Instalasi dan Konfigurasi BIND9 (Slave)
#### Step 1: Install BIND9
Untuk melakukan instalasi BIND9 yang pertama adalah melakukan remote ke IP VPS dengan menggunakan SSH
> ```$ ssh root@ipaddress```
Setelah berhasil login ke VPS, lakukan pembaharuan paket/repository dari system operasi Centos7 dengan perintah sebagai berikut:
> ```# yum -y update```
Setelah melakukan update system selanjutnya lakukan install epel-release
> ```# yum install epel-release -y```
Setelah melakukan install epel-release selanjutnya kita install bind9
> ```# yum install bind bind-utils -y```
#### Step 2: Konfigurasi BIND9
Kemudian lakukan backup file konfigurasi bind dengan melakukan copy file tersebut
> ```# cp /etc/named.conf /etc/named.conf.ori```
Lakukan perubahan konfigurasi named.conf dari sisi Slave
> ```# vi /etc/named.conf```
Rubah isi dari file tersebut.
> ```
listen-on port 53 { 127.0.0.1; 117.53.47.189; }; ( masukan ip server bind )
listen-on-v6 port 53 { none; };
allow-query { 127.0.0.1; 117.53.47.189; any; }; ( masukan ip server bind )
allow-query-cache { 127.0.0.1; 117.53.47.189; any ;}; ( masukan ip server bind )
```
Kemudian masukan konfigurasi Zone Slave pada file konfigurasi named.conf
> ```
zone "padiakse.my.id" {
type slave; (masukan type disini sebagai Slave)
allow-transfer { 103.23.20.70; }; ( Mengizinkan Update zone dari Ip master )
allow-notify { 103.23.20.70; }; ( Mengizinkan mentransfer zone dari Ip master)
masters { 103.23.20.70; }; (Merupakan IP master dari konfigurasi slave)
file "slaves/for.dns"; ( Penempatan file zona )
masterfile-format text; ( Berguna untuk menerjemahkan zona dari master ke dalam format text)
notify yes;
};
```
Setelah file Zone selesai kita enable konfigurasi Bind9 Server dan menjalankan servicenya
> ```
# systemctl enable named
# systemctl start named
```
Pastikan service berjalan dengan normal.
> ```
# systemctl status named
● named.service - Berkeley Internet Name Domain (DNS)
Loaded: loaded (/usr/lib/systemd/system/named.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2020-03-24 21:50:42 WIB; 15h ago
Process: 16837 ExecStop=/bin/sh -c /usr/sbin/rndc stop > /dev/null 2>&1 || /bin/kill -TERM $MAINPID (code=exited, status=0/SUCCESS)
Process: 16849 ExecStart=/usr/sbin/named -u named -c ${NAMEDCONF} $OPTIONS (code=exited, status=0/SUCCESS)
Process: 16847 ExecStartPre=/bin/bash -c if [ ! "$DISABLE_ZONE_CHECKING" == "yes" ]; then /usr/sbin/named-checkconf -z "$NAMEDCONF"; else echo "Checking of zone files is disabled"; fi (code=exited, status=0/SUCCESS)
Main PID: 16851 (named)
CGroup: /system.slice/named.service
└─16851 /usr/sbin/named -u named -c /etc/named.conf
```
## Memastikan Konfigurasi Master-Slave Bind9
#### Step 1: Lakukan Pengecekan pada file Zone dari sisi SLave
Sesuai dengan file konfigurasi zone named.conf bahwa file zone akan diletakan pada folder /var/named/slaves/ maka kita harus masuk ke folder tersebut untuk memastikan
> ```# cd /var/named/slaves/```
Setelah itu lihat isi dari folder slaves
> ```
[slaves]# ls
for.dns
```
Apabila file tersebut tidak ada mohon pastikan lagi penempatan file zone pada sisi slave.
Jika sudah ditemukan kemudian kita lihat isi konfigurasi record DNS pada file Zone tersebut.
> ```# cat for.dns
$ORIGIN .
$TTL 86400 ; 1 day
padiakse.my.id IN SOA padiakse.my.id. root.padiakse.my.id. (
2403202148 ; serial
3600 ; refresh (1 hour)
1800 ; retry (30 minutes)
604800 ; expire (1 week)
86400 ; minimum (1 day)
)
NS binds1.padiakse.my.id.
NS binds2.padiakse.my.id.
A 103.23.20.70=
$ORIGIN padiakse.my.id.
bind A 117.53.47.189
binds1 A 103.23.20.70
binds2 A 117.53.47.189
```
#### Step 2: Lakukan Pengecekan dengan melakukan penambahan record dari sisi master
Lakukan penambahan record pada file zona sisi master
> ```# vi /var/named/for.dns```
Berikut isi dari file zona Tersebut.
> ```
$TTL 86400
@ IN SOA padiakse.my.id. root.padiakse.my.id. (
2403202149 ;Serial yyMMddhhmm
3600 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL
)
@ IN NS binds1.padiakse.my.id.
@ IN NS binds2.padiakse.my.id.
@ IN A 103.23.20.70
binds1 IN A 103.23.20.70
binds2 IN A 117.53.47.189
bind IN A 117.53.47.189
www IN CNAME padiakse.my.id.
@ IN MX 10 mail.padiakse.my.id.
@ IN TXT "v=spf1 a mx -all"
mail IN A 117.53.47.189
ftp IN CNAME padiakse.my.id.
```
Setelah file Zone selesai kita enable konfigurasi Bind9 Server dan menjalankan servicenya
> ```
# systemctl restart named
```
Jalankan perintah berikut untuk melakukan pengecekan zona
> ```
# named-checkzone padiakse.my.id /var/named/for.dns
zone padiakse.my.id/IN: loaded serial 2403202149
OK
```
Lakukan pengecekan status pada sisi master.
> ```
# # systemctl status named
● named.service - Berkeley Internet Name Domain (DNS)
Loaded: loaded (/usr/lib/systemd/system/named.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2020-03-25 13:43:41 WIB; 1min 41s ago
Process: 8440 ExecStop=/bin/sh -c /usr/sbin/rndc stop > /dev/null 2>&1 || /bin/kill -TERM $MAINPID (code=exited, status=0/SUCCESS)
Process: 7386 ExecReload=/bin/sh -c /usr/sbin/rndc reload > /dev/null 2>&1 || /bin/kill -HUP $MAINPID (code=exited, status=0/SUCCESS)
Process: 8451 ExecStart=/usr/sbin/named -u named -c ${NAMEDCONF} $OPTIONS (code=exited, status=0/SUCCESS)
Process: 8449 ExecStartPre=/bin/bash -c if [ ! "$DISABLE_ZONE_CHECKING" == "yes" ]; then /usr/sbin/named-checkconf -z "$NAMEDCONF"; else echo "Checking of zone files is disabled"; fi (code=exited, status=0/SUCCESS)
Main PID: 8452 (named)
CGroup: /system.slice/named.service
└─8452 /usr/sbin/named -u named -c /etc/named.conf
Mar 25 13:43:41 pdns.padiakse.my.id named[8452]: network unreachable resolving './NS/IN': 2001:503:ba3e::2:30#53
Mar 25 13:43:41 pdns.padiakse.my.id named[8452]: network unreachable resolving './DNSKEY/IN': 2001:500:a8::e#53
Mar 25 13:43:41 pdns.padiakse.my.id named[8452]: network unreachable resolving './NS/IN': 2001:500:a8::e#53
Mar 25 13:43:41 pdns.padiakse.my.id named[8452]: network unreachable resolving './DNSKEY/IN': 2001:500:2::c#53
Mar 25 13:43:41 pdns.padiakse.my.id named[8452]: network unreachable resolving './NS/IN': 2001:500:2::c#53
Mar 25 13:43:41 pdns.padiakse.my.id named[8452]: client @0x7f62c40b7800 117.53.47.189#34914 (padiakse.my.id): transfer of 'padiakse.my.id/IN': AXFR-style IXF...03202149)
Mar 25 13:43:41 pdns.padiakse.my.id named[8452]: client @0x7f62c40b7800 117.53.47.189#34914 (padiakse.my.id): transfer of 'padiakse.my.id/IN': AXFR-style IXFR ended
Mar 25 13:43:41 pdns.padiakse.my.id named[8452]: client @0x7f62c40a9060 117.53.47.189#41904: received notify for zone 'padiakse.my.id'
Mar 25 13:43:42 pdns.padiakse.my.id named[8452]: managed-keys-zone: Key 20326 for zone . acceptance timer complete: key now trusted
Mar 25 13:43:42 pdns.padiakse.my.id named[8452]: resolver priming query complete
Hint: Some lines were ellipsized, use -l to show in full.
```
Setelah itu lakukan restart service dari sisi slave
> ```
# systemctl restart named
```
Kemudian cek file zone pada sisi slave.
> ```# cat for.dns
$ORIGIN .
$TTL 86400 ; 1 day
padiakse.my.id IN SOA padiakse.my.id. root.padiakse.my.id. (
2403202149 ; serial
3600 ; refresh (1 hour)
1800 ; retry (30 minutes)
604800 ; expire (1 week)
86400 ; minimum (1 day)
)
NS binds1.padiakse.my.id.
NS binds2.padiakse.my.id.
A 103.23.20.70
MX 10 mail.padiakse.my.id.
TXT "v=spf1 a mx -all"
$ORIGIN padiakse.my.id.
bind A 117.53.47.189
binds1 A 103.23.20.70
binds2 A 117.53.47.189
ftp CNAME padiakse.my.id.
mail A 117.53.47.189
www CNAME padiakse.my.id.
```
Cek status dari bind slave
> ```
# systemctl status named
● named.service - Berkeley Internet Name Domain (DNS)
Loaded: loaded (/usr/lib/systemd/system/named.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2020-03-25 13:48:05 WIB; 7s ago
Process: 17340 ExecStop=/bin/sh -c /usr/sbin/rndc stop > /dev/null 2>&1 || /bin/kill -TERM $MAINPID (code=exited, status=0/SUCCESS)
Process: 17352 ExecStart=/usr/sbin/named -u named -c ${NAMEDCONF} $OPTIONS (code=exited, status=0/SUCCESS)
Process: 17350 ExecStartPre=/bin/bash -c if [ ! "$DISABLE_ZONE_CHECKING" == "yes" ]; then /usr/sbin/named-checkconf -z "$NAMEDCONF"; else echo "Checking of zone files is disabled"; fi (code=exited, status=0/SUCCESS)
Main PID: 17354 (named)
CGroup: /system.slice/named.service
└─17354 /usr/sbin/named -u named -c /etc/named.conf
Mar 25 13:48:05 imam.localhost named[17354]: network unreachable resolving './DNSKEY/IN': 2001:500:2::c#53
Mar 25 13:48:05 imam.localhost named[17354]: network unreachable resolving './NS/IN': 2001:500:2::c#53
Mar 25 13:48:05 imam.localhost named[17354]: network unreachable resolving './DNSKEY/IN': 2001:500:9f::42#53
Mar 25 13:48:05 imam.localhost named[17354]: network unreachable resolving './NS/IN': 2001:500:9f::42#53
Mar 25 13:48:05 imam.localhost named[17354]: network unreachable resolving './DNSKEY/IN': 2001:500:12::d0d#53
Mar 25 13:48:05 imam.localhost named[17354]: network unreachable resolving './NS/IN': 2001:500:12::d0d#53
Mar 25 13:48:05 imam.localhost named[17354]: network unreachable resolving './DNSKEY/IN': 2001:500:2f::f#53
Mar 25 13:48:05 imam.localhost named[17354]: network unreachable resolving './NS/IN': 2001:500:2f::f#53
Mar 25 13:48:06 imam.localhost named[17354]: managed-keys-zone: Key 20326 for zone . acceptance timer complete: key now trusted
Mar 25 13:48:06 imam.localhost named[17354]: resolver priming query complete
```
#### Step 3: Add Glue record dan cek dari luar server DNS
