開源 GSLB ? OpenSource GSLB (Global Server Load Balancing)
URL
https://github.com/gdnsd/gdnsd/
亂測記錄如下:
Demo 按權重分配
設定問題排查
message log
亂測使用的設定 (gdnsd/config)
cat /etc/gdnsd/gdnsd/config
options => {
dns_port => 53
listen => any
};
service_types => {
www_check_tcp => {
plugin => tcp_connect,
port => 80,
interval => 10,
timeout => 3
}
};
plugins => {
weighted => {
www_weighted => {
service_types => [ "www_check_tcp" ],
www1 => [ "192.168.100.2", 30 ],
www2 => [ "192.168.100.1", 70 ]
}
}
};
=============================
亂測使用的設定 (gdnsd/zone)
cat /etc/gdnsd/gdnsd/zones/vlab.tw
$TTL 300
@ IN SOA ns1.vlab.tw. admin.vlab.tw. (
2024122001 ; serial
3600 ; refresh
900 ; retry
604800 ; expire
300 ; minimum
)
IN NS ns1.vlab.tw.
ns1 IN A 192.168.100.200
@ IN A 192.168.100.200
mail IN A 192.168.100.101
vlab.tw. IN MX 10 mail.vlab.tw.
www IN DYNA weighted!www_weighted
=============================
隨便安裝的參考步驟
dnf install libev-devel
dnf install gcc make libev-devel libsodium-devel libmaxminddb-devel perl-Pod-Parser autoconf automake ragel
dnf install userspace-rcu.x86_64 userspace-rcu-devel.x86_64
dnf install perl-Test-Simple perl-JSON-PP perl-Socket6 perl-Net-DNS perl-HTTP-Daemon
mkdir /usr/local/src/tmp
cd /usr/local/src/tmp
wget https://github.com/gdnsd/gdnsd/archive/refs/tags/v3.8.3.tar.gz
tar -zvxf v3.8.3.tar.gz
cd gdnsd-3.8.3
autoreconf -fi
./configure --sysconfdir=/etc/gdnsd --localstatedir=/var --with-systemdsystemunitdir=/usr/lib/systemd/system
make
make install
vi /usr/lib/systemd/system/gdnsd.service
sudo systemctl daemon-reload
sudo systemctl enable --now gdnsd
===========================
隨便設定成系統服務的參考設定
cat /usr/lib/systemd/system/gdnsd.service
[Unit]
Description=gdnsd Authoritative DNS Server
After=network.target
[Service]
Type=simple
ExecStart=/usr/local/sbin/gdnsd -c /etc/gdnsd/gdnsd start
[Install]
WantedBy=multi-user.target
