Sebelum memulai instalasi, kita harus menginstall library-library yang dibutuhkan
yum install gcc make automake gcc-c++ glibc-devel libtool automake libtool-ltdl-devel
Install libsodium
cd /tmp wget --no-check-certificate https://download.libsodium.org/libsodium/releases/libsodium-0.6.1.tar.gz tar zxvf libsodium-0.6.1.tar.gz cd libsodium-0.6.1 ./configure make && make check su -c "make install"
setelah selesai menginstall libsodium jalankan
echo /usr/local/lib > /etc/ld.so.conf.d/usr_local_lib.conf
lalu jalankan
ldconfig
kalau tidak dijalankan nanti muncul error
configure: error: cannot run C compiled programs. If you meant to cross compile, use `--host'. See `config.log' for more details configure: error: ./configure failed for src/libevent-modified
sewaktu menginstall dnscrypt.
Install DNSCrypt
wget --no-check-certificate http://download.dnscrypt.org/dnscrypt-proxy/dnscrypt-proxy-1.4.0.tar.gz tar zxvf dnscrypt-proxy-1.4.0.tar.gz cd dnscrypt-proxy-1.4.0 ./autogen.sh ./configure make su -c "make install"
sampai tahap disini, proses instalasi telah selesai.
Konfigurasi DNSCrypt
Agar komputer anda menggunakan DNSCrypt, hapus isi file /etc/resolv.conf ganti dengan
nameserver 127.0.0.1
jalankan service DNSCrypt (dnscrypt-proxy)
dnscrypt-proxy -R opendns -d
untuk mengetahui dnsproxy berjalan atau tidak hilangkan -d dibelakang perintah diatas. Test apakah koneksi sudah melewati DNSCrypt atau tidak
dig yahoo.net
### output perintah diatas
......
;; ANSWER SECTION:
yahoo.net. 172781 IN NS ns4.yahoo.com.
yahoo.net. 172781 IN NS ns3.yahoo.com.
yahoo.net. 172781 IN NS ns1.yahoo.com.
yahoo.net. 172781 IN NS ns2.yahoo.com.
yahoo.net. 172781 IN NS ns5.yahoo.com.
;; Query time: 152 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Aug 12 05:17:31 EDT 2014
;; MSG SIZE rcvd: 137
bagian SERVER: 127.0.0.1#53(127.0.0.1) menandakan query ke yahoo.net melewati DNSCrypt yang tadinya kita install.