Tulisan sebelumnya cara install unbound 1.4.21 dengan cara menginstall unbound dari source, kali ini kita akan menginstall langsung dari .deb jadi tidak perlu menginstall dependency yang lumayan banyak.
.deb yang akan kita install diambil dari wheezy-backport, untuk menggunakannnya jalankan perintah dibawah ini
echo 'deb http://http.debian.net/debian wheezy-backports main' >> /etc/apt/sources.list
tanda > ada dua (>>).
Bila anda pernah menginstall Unbound versi sebelumnya uninstall dengan cara
apt-get purge unbound -y
Install unbound 1.4.22 dengan cara
apt-get update apt-get -t wheezy-backports install "unbound"
Download root.server
wget http://www.internic.net/domain/named.root -O /etc/unbound/root.server
File konfigurasi Unbound berada di /etc/unbound/. Hapus file /etc/unbound/unbound.conf ganti dengan
server: directory: "/etc/unbound" root-hints: "/etc/unbound/root.server" interface: 0.0.0.0 access-control: 0.0.0.0/0 allow verbosity: 3 hide-identity: yes hide-version: yes prefetch: yes do-ip4: yes do-ip6: no do-udp: yes do-tcp: yes num-threads: 1 outgoing-range: 400 so-rcvbuf: 10m so-sndbuf: 10m cache-min-ttl: 3600 private-address: 10.0.0.0/8 private-address: 172.16.0.0/12 private-address: 192.168.0.0/16 private-address: 127.0.0.1/8 # menonaktifkan DNSSEC module-config: "iterator" val-permissive-mode: yes forward-zone: name: "." forward-addr: 8.8.8.8 # Google Public DNS forward-addr: 208.67.222.222 # OpenDNS
simpan, lalu restart unbound
service unbound restart
Troubleshooting
Cek log unbound di /var/log/syslog
tail -f /var/log/syslog
bila muncul error
Nov 17 09:52:14 server unbound-anchor: 139722217105064:error:21075075:PKCS7 routines:PKCS7_verify:certificate verify error:pk7_smime.c:342:Verify error:certificate has expired Nov 17 09:52:14 server unbound-anchor: the PKCS7 signature failed Nov 17 09:52:22 server unbound: [3441:0] info: failed to prime trust anchor -- DNSKEY rrset is not secure . DNSKEY IN Nov 17 09:52:22 server unbound: [3441:0] info: failed to prime trust anchor -- DNSKEY rrset is not secure . DNSKEY IN Nov 17 09:52:22 server unbound: [3441:0] info: failed to prime trust anchor -- DNSKEY rrset is not secure . DNSKEY IN Nov 17 09:52:22 server unbound: [3441:0] info: failed to prime trust anchor -- DNSKEY rrset is not secure . DNSKEY IN Nov 17 09:52:22 server unbound: [3441:0] info: failed to prime trust anchor -- DNSKEY rrset is not secure . DNSKEY IN Nov 17 09:52:22 server unbound: [3441:0] info: failed to prime trust anchor -- DNSKEY rrset is not secure . DNSKEY IN
ganti file unbound.conf menjadi
server: directory: "/etc/unbound" root-hints: "/etc/unbound/root.server" interface: 0.0.0.0 access-control: 0.0.0.0/0 allow verbosity: 3 hide-identity: yes hide-version: yes prefetch: yes do-ip4: yes do-ip6: no do-udp: yes do-tcp: yes num-threads: 1 outgoing-range: 400 so-rcvbuf: 10m so-sndbuf: 10m cache-min-ttl: 3600 private-address: 10.0.0.0/8 private-address: 172.16.0.0/12 private-address: 192.168.0.0/16 private-address: 127.0.0.1/8
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