ืื ืืืืขืจืืขืฆืื ื ืคืื ืืขื ืึทืจืืืงื ืืื ืืขืืืขื ืฆืืืขืืจืืื ืืืืฃ ืื ืขืจืขืื ืคืื ืื ืึธื ืืืื ืคืื ืื ืงืืจืก
ืืึทืกืข ืืึทืืึทื ืกืื ื ืืื ืึท ืคึผืจืึธืกื ืืืืืื ื ืคึฟืึทืจ ืืึธืจืืืึทื ืืึทืื ืกืงืืืืื ื ืืืขื ืึทืคึผืืึทืงืืืฉืึทื ื ืึทืจืืืขืจ ืงืืืคื ืืื ืืช ืืฉืขืช ืืื ืฆืืฉืืขืื ืืืืขืจื ืืื ืึท ืืืื ืคืื ื ืคืื ืึทืงืกืขืก ืฆื ืื ืกืขืจืืืืก.
HAProxy ืฉืืจืขืื ืฆื ืึทืคึผืืึทืืืื ืืืื ืืึทื ืืฅ, ืืึทืงืกืึทืืืื ืื ืืจืืคึผืื, ืืื ืึทืืืื ืขื ืืคืขืจ ืฆืืื ืืื ืืืกืืืืื ืึธืืืืขืจืืึธืืืื ื ืงืืื ืืืื ืืืื. ืขืก ืงืขื ืขื ืืืื ืืื ืกืืึทืืืจื ืืืืฃ ืึท ืคืึทืจืฉืืืื ืงืืึทื ืคืื ืืื ืืงืก ืืืกืืจืืืืืฉืึทื ื, ืึทืืึท ืืื CentOS 8, ืืืึธืก ืืืจ ืืืขืื ืคืึธืงืืก ืืืืฃ ืืื ืืขื ืคืืจืขืจ, ืืื ืืขืืื ื ืืื ืกืืกืืขืืขื.
HAProxy ืืื ืืขืจ ืืืืคึผื ืคึผืึทืกืืง ืคึฟืึทืจ ืืืขืืกืืืขืก ืืื ืืืืขืจ ืืืื ืคืึทืจืงืขืจ ืืื ืืื ืืขืจืืืขืจ ืึธืคื ืืขื ืืฆื ืฆื ืคึฟืึทืจืืขืกืขืจื ืื ืจืืืืืึทืืืืึทืื ืืื ืคืึธืจืฉืืขืืื ื ืคืื ืืึทืืื-ืกืขืจืืืขืจ ืืืขื ืกืขืจืืืืก ืงืึทื ืคืืืืขืจืืืฉืึทื ื. ืืขืจ ืคืืจืขืจ ืึทืืืืืื ื ืื ืกืืขืคึผืก ืฆื ืฉืืขืื ืึทืจืืืฃ HAProxy ืืื ืึท ืืึทืกืข ืืึทืืึทื ืกืขืจ ืืืืฃ ืึท CentOS 8 ืืืึธืืงื ืืึทืืขืืึธืก, ืืืึธืก ืืึทื ืจืืฅ ืคืึทืจืงืขืจ ืฆื ืืืื ืืืขื ืกืขืจืืืขืจืก.
ืืื ืึท ืคึผืจืืจืขืงืืืึทืืึทื ืคึฟืึทืจ ืืขืกืืขืจ ืจืขืืืืืึทืื, ืืืจ ืืึธื ืืึธืื ืืืึท ืืื ืืกืืขืจ ืฆืืืื ืืืขื ืกืขืจืืืขืจืก ืืื ืึท ืืึทืกืข ืืึทืืึทื ืกืื ื ืกืขืจืืืขืจ. ืืืขื ืกืขืจืืืขืจืก ืืืื ืืืืคื ืืื ืืื ืืกืืขืจ ืึท ืืงืขืจืืืง ืืืขื ืกืขืจืืืืก ืึทืืึท ืืื nginx ืึธืืขืจ httpd ืืื ืกืืจ ืฆื ืคึผืจืืืืจื ืืึทืกืข ืืึทืืึทื ืกืื ื ืฆืืืืฉื ืืื.
ืื ืกืืึธืืื ื HAProxy ืืืืฃ CentOS 8
ืืืืึทื HAProxy ืืื ืึท ืจืึทืคึผืึทืืื ืืืืึทืืืืื ื ืขืคึฟืขื ืขื ืืงืืจ ืึทืคึผืืึทืงืืืฉืึทื, ืื ืคืึทืจืฉืคึผืจืืืืื ื ืื ืืืฆื ืฆื ืืืจ ืืื ืื ื ืึธืจืืึทื CentOS ืจืืคึผืึทืืึทืืึธืจืื ืงืขื ื ืืฉื ืืืื ืื ืืขืฆืืข ืืืขืจืกืืข. ืฆื ืืขืคึฟืื ืขื ืื ืงืจืึทื ื ืืืขืจืกืืข, ืืืืคื ืื ืคืืืืขื ืืข ืืึทืคึฟืขื:
sudo yum info haproxy
HAProxy ืฉืืขื ืืืง ืืื ืืจืื ืกืืึทืืื ืืืขืจืกืืขืก ืฆื ืงืืืึทืื ืคืื: ืื ืฆืืืื ืืขืจืกื ืืขืฆืืข ืืขืฉืืืฆื ืืืขืจืกืืขืก ืืื ืึท ืืจืื, ืขืืืขืจืข ืืืขืจืกืืข ืืืึธืก ืืื ื ืึธื ืจืืกืืืืื ื ืงืจืืืืฉ ืืขืจืืืึทื ืืืงืื ืืขื. ืืืจ ืงืขื ื ืฉืืขื ืืืง ืงืึธื ืืจืึธืืืจื ืื ืืขืฆืืข ืกืืึทืืื ืืืขืจืกืืข ืืืกืืขื ืืืืฃ ืื HAProxy ืืืขืืืืืื ืืื ืืึทื ืืึทืฉืืืกื ืืื ืืืึธืก ืืืขืจืกืืข ืืืจ ืืืืื ืฆื ืึทืจืืขืื.
ืืื ืืขื ืคืืจืขืจ, ืืืจ ืืืขืื ืื ืกืืึทืืืจื ืื ืืขืฆืืข ืกืืึทืืื ืืืขืจืกืืข 2.0, ืืืึธืก ืืื ื ืึธื ื ืืฉื ืื ืืืฆื ืืื ืื ื ืึธืจืืึทื ืจืืคึผืึทืืึทืืึธืจืื ืืื ืืขืจ ืฆืืื ืคืื ืฉืจืืืื ืืขื ืคืืจืขืจ. ืืืจ ืืืขื ืืึทืจืคึฟื ืฆื ืื ืกืืึทืืืจื ืขืก ืคึฟืื ืืขืจ ืึธืจืืืื ืขื ืืงืืจ. ืึธืืขืจ ืขืจืฉืืขืจ, ืืฉืขืง ืืืื ืืืจ ืืึธืื ืืืืขืื ื ืื ื ืืืืืง ืืืืื ืืื ืืขื ืฆื ืึธืคึผืืึธืืืจื ืืื ืฆืื ืืืคื ืขืืขื ืื ืคึผืจืึธืืจืึทื.
sudo yum install gcc pcre-devel tar make -y
ืืจืืคืงืืคืืข ืื ืืงืืจ ืงืึธื ื ืืฆื ืื ืืึทืคึฟืขื ืืื ืื. ืืืจ ืงืขื ืขื ืงืึธื ืืจืึธืืืจื ืืืื ืขืก ืืื ืึท ื ืืึทืขืจ ืืืขืจืกืืข ืื ืืืฆื ืืืืฃ
wget http://www.haproxy.org/download/2.0/src/haproxy-2.0.7.tar.gz -O ~/haproxy.tar.gz
ืึทืืึธื ืื ืืจืืคืงืืคืืข ืืื ืืขืขื ืืืงื, ืขืงืกืืจืึทืงื ืื ืืขืงืขืก ืืื ืื ืืึทืคึฟืขื ืืื ืื:
tar xzvf ~/haproxy.tar.gz -C ~/
ืืืื ืฆื ืื ืึทื ืคึผืึทืงื ืืงืืจ ืืืขืืืืืึทืืขืจ:
cd ~/haproxy-2.0.7
ืืขืจื ืึธื ืฆืื ืืืคื ืขืืขื ืื ืคึผืจืึธืืจืึทื ืคึฟืึทืจ ืืืื ืกืืกืืขื:
make TARGET=linux-glibc
ืืื ืืขืกืึธืฃ, ืื ืกืืึทืืืจื HAProxy ืืื:
sudo make install
HAProxy ืืื ืืืฆื ืืื ืกืืึทืืืจื, ืึธืืขืจ ืขืก ืจืืงืืืืืขืจื ืขืืืขืืข ื ืึธื ืืึทื ืืคึผืืึทืืืืฉืึทื ื ืฆื ืืึทืื ืขืก ืึทืจืืขื. ืืึธืืืจ ืคืึธืจืืขืฆื ืฆื ืืึทืฉืืขืืืงื ืื ืืืืืืืืืจื ืืื ืืึทืืื ืื ืืก ืืื ืื.
ืืึทืฉืืขืืืงื HAProxy ืคึฟืึทืจ ืืืื ืกืขืจืืืขืจ
ืืืฆื ืืืืื ืื ืคืืืืขื ืืข ืืืืจืขืงืืขืจืื ืืื ืกืืึทืืืกืืืง ืืขืงืข ืคึฟืึทืจ ืื HAProxy ืืืื ืกื:
sudo mkdir -p /etc/haproxy
sudo mkdir -p /var/lib/haproxy
sudo touch /var/lib/haproxy/stats
ืฉืึทืคึฟื ืึท ืกืืืืึธืืืฉ ืืื ืง ืคึฟืึทืจ ืื ืืื ืึทืจืืขืก ืึทืืื ืืืจ ืงืขื ืขื ืืืืคื HAProxy ืงืึทืืึทื ืื ืืื ืึท ืจืขืืืืขืจ ืืึทื ืืฆืขืจ:
sudo ln -s /usr/local/sbin/haproxy /usr/sbin/haproxy
ืืืื ืืืจ ืืืืื ืฆื ืืืืื ืึท ืคืจืืงืกื ืฆื ืืืื ืกืืกืืขื ืืื ืึท ืืื ืกื, ืงืึธืคึผืืข ืื haproxy.init ืืขืงืข ืคึฟืื ืืืืฉืคืืื ืฆื ืืืื /etc/init.d ืืืขืืืืืึทืืขืจ. ืจืขืืึทืืืจื ืื ืืขืงืข ืคึผืขืจืืืฉืึทื ื ืึทืืื ืึทื ืื ืฉืจืืคื ืืืขื ืืืืคื, ืืื ืืขืืึธืื ืจืืกืืึทืจื ืื ืกืืกืืขื ืืขืืึธื:
sudo cp ~/haproxy-2.0.7/examples/haproxy.init /etc/init.d/haproxy
sudo chmod 755 /etc/init.d/haproxy
sudo systemctl daemon-reload
ืืืจ ืืืื ืืึทืจืคึฟื ืฆื ืืึธืื ืื ืกืขืจืืืืก ืืืืืึธืืึทืืืฉ ืจืืกืืึทืจื ืืืขื ืื ืกืืกืืขื ืกืืึทืจืฅ:
sudo chkconfig haproxy on
ืคึฟืึทืจ ืงืึทื ืืืื ืืึทื ืก, ืขืก ืืื ืืืื ืจืขืงืึทืืขื ืืื ืฆื ืืืืื ืึท ื ืืึทืข ืืึทื ืืฆืขืจ ืฆื ืืืืคื HAProxy:
sudo useradd -r haproxy
ื ืึธื ืืขื, ืืืจ ืงืขื ืขื ืงืึธื ืืจืึธืืืจื ืื ืืื ืกืืึทืืืจื ืืืขืจืกืืข ื ืืืขืจ ืืืืืขืจ ืืื ืื ืคืืืืขื ืืข ืืึทืคึฟืขื:
haproxy -v
HA-Proxy version 2.0.7 2019/09/27 - https://haproxy.org/
ืืื ืืื ืืืขืจ ืคืึทื, ืื ืืืขืจืกืืข ืืึธื ืืืื 2.0.7, ืืื ืืขืืืืื ืืื ืืขื ืืืึทืฉืคึผืื ืจืขืืืืืึทื ืืืืื.
ืฆืื ืกืืฃ, ืื ืคืขืืืงืืึทื ืคืืืจืืืึทื ืืื CentOS 8 ืืื ืืึทื ืฅ ืจืืกืืจืืงืืืื ืคึฟืึทืจ ืืขื ืคึผืจืืืขืงื. ื ืืฆื ืื ืคืืืืขื ืืข ืงืึทืืึทื ืื ืฆื ืืึธืื ืื ืคืืจืืื ืื ืืึทืืื ืื ืืก ืืื ืืึทืฉืืขืืืง ืื ืคืืืจืืืึทื:
sudo firewall-cmd --permanent --zone=public --add-service=http
sudo firewall-cmd --permanent --zone=public --add-port=8181/tcp
sudo firewall-cmd --reload
ืืึธืื ืืึทืืึทื ืกืขืจ ืกืขืืึทืคึผ
ืืึทืฉืืขืืืงื HAProxy ืืื ืึท ืืึทื ืฅ ืคึผืฉืื ืคึผืจืึธืฆืขืก. ืืกืขื ืฉืึทืื, ืึทืืข ืืืจ ืืึทืจืคึฟื ืฆื ืืึธื ืืื ืืึธืื HAProxy ืืืึธืก ืงืึทื ืขืงืฉืึทื ื ืขืก ืืึธื ืืขืจื ืคึฟืึทืจ ืืื ืืื ืขืก ืืึธื ืจืืืืืื ื ืืื.
ืืขื ืืื ืืขืืื ืืืจื ืงืจืืืืืื ื ืึท ืงืึทื ืคืืืืขืจืืืฉืึทื ืืขืงืข /etc/haproxy/haproxy.cfg ืืื ืืืคืืื ืื ื ืกืขืืืื ืืก. ืืืจ ืงืขื ืขื ืืืืขื ืขื ืืืขืื HAProxy ืงืึทื ืคืืืืขืจืืืฉืึทื ืึธืคึผืฆืืขืก
ืืึทืกืข ืืึทืืึทื ืกืื ื ืืื ืื ืึทืจืืืขืจืคืืจื ืฉืืืืข (ืฉืืืืข 4)
ืืื ืก ืึธื ืืืืื ืืื ืื ืืงืขืจืืืง ืกืขืืึทืคึผ. ืฉืึทืคึฟื ืึท ื ืืึทืข ืงืึธื ืคืื ืืขืงืข, ืคึฟืึทืจ ืืืึทืฉืคึผืื ื ืืฆื vi ืืื ืื ืืึทืคึฟืขื ืืื ืื:
sudo vi /etc/haproxy/haproxy.cfg
ืืืื ืื ืคืืืืขื ืืข ืกืขืงืฉืึทื ื ืฆื ืืขืจ ืืขืงืข. ืคืึทืจืืืึทืื ืกืขืจืืืขืจ_ื ืึทืืข ืืืึธืก ืืึธื ืจืืคื ืืืื ืกืขืจืืืขืจืก ืืืืฃ ืื ืกืืึทืืืกืืืง ืืืึทื, ืืื private_ip - ืคึผืจืืืืึทื IP ืึทืืจืขืกืขืก ืคืื ืื ืกืขืจืืืขืจืก ืฆื ืืืึธืก ืืืจ ืืืืื ืฆื ืคืืจื ืืืขื ืคืึทืจืงืขืจ. ืืืจ ืงืขื ืขื ืงืึธื ืืจืึธืืืจื ืคึผืจืืืืึทื IP ืึทืืจืขืกืขืก
global
log /dev/log local0
log /dev/log local1 notice
chroot /var/lib/haproxy
stats timeout 30s
user haproxy
group haproxy
daemon
defaults
log global
mode http
option httplog
option dontlognull
timeout connect 5000
timeout client 50000
timeout server 50000
frontend http_front
bind *:80
stats uri /haproxy?stats
default_backend http_back
backend http_back
balance roundrobin
server server_name1 private_ip1:80 check
server server_name2 private_ip2:80 check
ืืึธืก ืืืคืืื ื ืึท ืืจืึทื ืกืคึผืึธืจื ืฉืืืืข ืืึทืกืข ืืึทืืึทื ืกืขืจ (ืฉืืืืข 4) ืืืกืืืืื ืืง ืืขืืืืกื http_front ืฆืืืขืืขืจื ืืืืฃ ืคึผืึธืจื 80, ืืืึธืก ืืขืืึธืื ืคืึธืจืืืขืจืื ืคืึทืจืงืขืจ ืฆื ืึท ืคืขืืืงืืึทื ืืึทืงืขื ื ืืขืืืืกื http_back. ื ืึธื ืกืืึทืืืกืืืง /ืืึทืคึผืจืึธืงืกื?ืกืืึทืืก ืงืึทื ืขืงืฅ ืื ืกืืึทืืืกืืืง ืืืึทื ืฆื ืื ืกืคึผืขืกืืคืืขื ืึทืืจืขืก.
ืคืึทืจืฉืืื ืืึทืกืข ืืึทืืึทื ืกืื ื ืึทืืืขืจืืืึทืื.
ืกืคึผืขืฆืืคืืฆืืจื ืกืขืจืืืขืจืก ืืื ืื ืืึทืงืขื ื ืึธืคึผืืืืืื ื ืึทืืึทืื HAProxy ืฆื ื ืืฆื ืื ืกืขืจืืืขืจืก ืคึฟืึทืจ ืืึทืกืข ืืึทืืึทื ืกืื ื ืืืื ืึท ืจืึธืื ื-ืจืึธืืื ืึทืืืขืจืืืึทื ืืืขื ืืขืืืขื.
ืืึทืืึทื ืกืื ื ืึทืืืขืจืืืึทืื ืืขื ืขื ืืขื ืืฆื ืฆื ืืึทืฉืืืกื ืืืึธืก ืกืขืจืืืขืจ ืืื ืื ืืึทืงืขื ื ืืขืืขืจ ืงืฉืจ ืืื ืืืจืืืขืืื ืืขื ืฆื. ืืึธ ืืขื ืขื ืขืืืขืืข ื ืืฆืืง ืึธืคึผืฆืืขืก:
- ืจืื ืืจืึธืืื: ืืขืืขืจ ืกืขืจืืืขืจ ืืื ืืขื ืืฆื ืืื ืืจืืึท ืืืื ืฆื ืืืื ืืืึธื. ืืึธืก ืืื ืื ืกืืืืึทืกื ืืื ืฉืืื ืึทืืืขืจืืืึทื ืืืขื ืื ืคึผืจืึทืกืขืกืื ื ืฆืืื ืคืื ืื ืกืขืจืืืขืจืก ืืื ืืืืึทื ืื ืคืื ืื ืืขืจืืขืืืืื. ืืขืจ ืึทืืืขืจืืืึทื ืืื ืืื ืึทืืืฉ, ืึทืืึทืืื ื ืื ืืืึธื ืคืื ืื ืกืขืจืืืขืจ ืฆื ืืืื ืึทืืืฉืึทืกืืื ืืืืฃ ืื ืคืืืขื.
- ืืึทืกืืงืึธื: ืืขืจ ืกืขืจืืืขืจ ืืื ืื ืคืืื ืึทืกื ืงืึทื ืขืงืฉืึทื ื ืืื ืืืืกืืขืงืืืื. ืจืึธืื ื ืจืึธืืื ืืื ืืขืืื ืฆืืืืฉื ืกืขืจืืืขืจืก ืืื ืืขืจ ืืขืืืืงืขืจ ืืึทืกืข. ื ืืฆื ืืขื ืึทืืืขืจืืืึทื ืืื ืจืขืงืึทืืขื ืืื ืคึฟืึทืจ ืืึทื ื ืกืขืฉืึทื ื ืึทืืึท ืืื LDAP, SQL, TSE, ืืื"ื ื, ืึธืืขืจ ืขืก ืืื ื ืืฉื ืืืืขืจ ืคึผืึทืกืืง ืคึฟืึทืจ ืงืืจืฅ ืกืขืฉืึทื ื ืึทืืึท ืืื ืืืืคึผ.
- ืขืจืฉืืขืจ: ืืขืจ ืขืจืฉืืขืจ ืกืขืจืืืขืจ ืืื ืื ืืืฆื ืงืฉืจ ืกืืึธืฅ ื ืขืื ืื ืงืฉืจ. ืกืขืจืืืขืจืก ืืขื ืขื ืืืืกืืขืงืืืื ืคืื ืื ืืึธืืึทืกื ื ืืืขืจืืง ืฉืืึทื ืฆื ืื ืืขืืกืื, ืืืึธืก ืืืคืึธืืฅ ืฆื ืื ืกืขืจืืืขืจ ืก ืฉืืขืืข ืืื ืืขืจ ืคืึทืจื. ืึทืืึธื ืึท ืกืขืจืืืขืจ ืจืืืฉืึทื ืืึทืงืงืึธื, ืืขืจ ืืืืึทืืขืจ ืกืขืจืืืขืจ ืืื ืืขื ืืฆื.
- ืืงืืจ: ืื ืืงืืจ IP ืึทืืจืขืก ืืื ืืึทืฉืขื ืืื ืฆืขืืืืื ืืืจื ืื ืืึทื ืฅ ืืืึธื ืคืื ืคืืืกื ืืืง ืกืขืจืืืขืจืก ืฆื ืืึทืฉืืืกื ืืืึธืก ืกืขืจืืืขืจ ืืืขื ืืึทืงืืืขื ืื ืืขืื. ืืขื ืืืขื, ืืขืจ ืืขืืืืงืขืจ ืงืืืขื ื IP ืึทืืจืขืก ืืืขื ืฉืืขื ืืืง ืืืื ืฆื ืืขืจ ืืขืืืืงืขืจ ืกืขืจืืืขืจ, ืืฉืขืช ืื ืกืขืจืืืขืจืก ืืืืืื ืื ืืขืืืข.
ืืึทืฉืืขืืืงื ืืึทืกืข ืืึทืืึทื ืกืื ื ืืืืฃ ืื ืึทืคึผืืึทืงืืืฉืึทื ืืืจืื (ืฉืืืืข 7)
ืื ืื ืืขืจ ืื ืืืฆื ืึธืคึผืฆืืข ืืื ืฆื ืงืึทื ืคืืืืขืจ ืึท ืืึทืกืข ืืึทืืึทื ืกืขืจ ืฆื ืืืืคื ืืื ืื ืึทืคึผืืึทืงืืืฉืึทื ืฉืืืืข (ืฉืืืืข 7), ืืืึธืก ืืื ื ืืฆืืง ืืืขื ืคึผืึทืจืฅ ืคืื ืืืื ืืืขื ืึทืคึผืืึทืงืืืฉืึทื ืืขื ืขื ืืืื ืืืืฃ ืคืึทืจืฉืืืขื ืข ืืื ืืช. ืืขื ืงืขื ืขื ืืืื ืึทืืฉืืืื ืืืจื ืืขืจืื ืื ืืจืึทื ืกืืืกืืข ืคืื โโืื ืงืฉืจ, ืืืฉื ืืืจื URL.
ืขืคึฟืขื ืขื ืื HAProxy ืงืึทื ืคืืืืขืจืืืฉืึทื ืืขืงืข ื ืืฆื ืึท ืืขืงืกื ืจืขืืึทืงืืึธืจ:
sudo vi /etc/haproxy/haproxy.cfg
ืืขืจื ืึธื ืงืึทื ืคืืืืขืจ ืื ืคืจืึธื ืืขื ื ืืื ืืึทืงืขื ื ืกืขืืืึทื ืฅ ืืืื ืื ืืืืฉืคึผืื ืืื ืื:
frontend http_front
bind *:80
stats uri /haproxy?stats
acl url_blog path_beg /blog
use_backend blog_back if url_blog
default_backend http_back
backend http_back
balance roundrobin
server server_name1 private_ip1:80 check
server server_name2 private_ip2:80 check
backend blog_back
server server_name3 private_ip3:80 check
ืืขืจ ืคืจืึธื ืืขื ื ืืขืจืงืืขืจื ืึทื ืึทืงื ืืขืจืฉื ืืขืจืืคื url_blog ืืืึธืก ืึทืคึผืืืื ืฆื ืึทืืข ืงืึทื ืขืงืฉืึทื ื ืืื ืคึผืึทืืก ืกืืึทืจืืื ื ืืื / ืืืึธื. Use_backend ืกืคึผืขืฆืืคืืฆืืจื ืึทื ืงืึทื ืขืงืฉืึทื ื ืืืึธืก ืจืืืื ืืื ืฆื ืื url_blog ืฆืืฉืืึทื ื ืืึธื ืืืื ืืขืืื ื ืืืจื ืึท ืืึทืงืขื ื ืืืื ื ืึธืืขื blog_back, ืืื ืึทืืข ืื ืืขืจืข ืจืืงืืืขืก ืืขื ืขื ืืึทื ืืึทืื ืืืจื ืื ืคืขืืืงืืึทื ืืึทืงืขื ื.
ืืืืฃ ืื ืืึทืงืขื ื ืืืึทื, ืื ืงืึทื ืคืืืืขืจืืืฉืึทื ืกืขืืึทืคึผ ืฆืืืื ืืจืืคึผืขืก ืคืื ืกืขืจืืืขืจืก: http_back, ืืื ืคืจืืขืจ, ืืื ืึท ื ืืึทืข ืืขืจืืคื blog_back, ืืืึธืก ืืึทื ืืึทืื ืงืึทื ืขืงืฉืึทื ื ืฆื example.com/blog.
ื ืึธื ืืฉืึทื ืืื ื ืื ืกืขืืืื ืืก, ืจืึทืืขืืืขื ืื ืืขืงืข ืืื ืจืืกืืึทืจื HAProxy ื ืืฆื ืื ืคืืืืขื ืืข ืืึทืคึฟืขื:
sudo systemctl restart haproxy
ืืืื ืืืจ ืืึทืงืืืขื ืืืึธืจื ืื ืื ืึธืืขืจ ืืขืืช ืึทืจืืืงืืขื ืืขืฉืึทืก ืกืืึทืจืืึทืคึผ, ืืฉืขืง ืืืื ืงืึทื ืคืืืืขืจืืืฉืึทื ืคึฟืึทืจ ืืื ืืื ืืึทืื ืืืืขืจ ืึทื ืืืจ ืืึธื ืืืฉืืคื ืึทืืข ืื ื ืืืืืง ืืขืงืขืก ืืื ืคืึธืืืขืจืก, ืืื ืคึผืจืืืืจื ืฆื ืจืืกืืึทืจืืื ื ืืืืืขืจ.
ืคึผืจืืืืจื ืื ืกืขืืึทืคึผ
ืึทืืึธื HAProxy ืืื ืงืึทื ืคืืืืขืจื ืืื ืคืืืกื ืืืง, ืขืคึฟืขื ืขื ืื ืขืคื ืืืขื IP ืึทืืจืขืก ืคืื ืื ืืึทืกืข ืืึทืืึทื ืกืขืจ ืกืขืจืืืขืจ ืืื ืึท ืืืขืืขืจืขืจ ืืื ืงืึธื ืืจืึธืืืจื ืืืื ืืืจ ืืขื ื ืงืึธื ื ืขืงืืขื ืฆื ืื ืืึทืงืขื ื ืจืืืืืง. ืืขืจ ืกืืึทืืืกืืืง ืืจื ืคึผืึทืจืึทืืขืืขืจ ืืื ืื ืงืึทื ืคืืืืขืจืืืฉืึทื ืงืจืืืืฅ ืึท ืกืืึทืืืกืืืง ืืืึทื ืืื ืื ืกืคึผืขืกืืคืืขื ืึทืืจืขืก.
http://load_balancer_public_ip/haproxy?stats
ืืืขื ืืืจ ืืึธืื ืื ืกืืึทืืืกืืืง ืืืึทื, ืืืื ืึทืืข ืืืื ืกืขืจืืืขืจืก ืืืืึทืื ืืจืื, ืื ืกืขืืึทืคึผ ืืื ืืขืืืขื ืืขืจืึธืื!
ืื ืกืืึทืืืกืืืง ืืืึทื ืึผืืื ืขืืืขืืข ื ืืฆืืง ืืื ืคึฟืึธืจืืึทืฆืืข ืคึฟืึทืจ ืืจืึทืงืื ื ืืืื ืืืขื ืืื ืืช, ืึทืจืืึทื ืืขืจืขืื ื ืึทืจืืืฃ / ืึทืจืึธืคึผ ืฆืืื ืืื ื ืืืขืจ ืคืื ืกืขืฉืึทื ื. ืืืื ืืขืจ ืกืขืจืืืขืจ ืืื ืื ืืขืฆืืืื ื ืจืืื, ืืึทืื ืืืืขืจ ืึทื ืืขืจ ืกืขืจืืืขืจ ืืื ืืืืกืืขืืจืืื ืืื ืึทื ืืืจ ืงืขื ืขื ืคึผืื ื ืขืก ืคึฟืื ืื ืืึทืกืข ืืึทืืึทื ืกืขืจ ืืึทืฉืื.
ืืืื ืืืื ืืึทืกืข ืืึทืืึทื ืกืขืจ ืืื ื ืืฉื ืจืืกืคึผืึทื ืืื ื, ืืึทืื ืืืืขืจ ืึทื HTTP ืงืึทื ืขืงืฉืึทื ื ืืขื ืขื ื ืืฉื ืืคืืขืฉืืขืื ืืืจื ืึท ืคืืืจืืืึทื. ืืืื ืืึทืื ืืืืขืจ ืึทื HAProxy ืึทืจืืขื ืืื ืื ืืึทืคึฟืขื ืืื ืื:
sudo systemctl status haproxy
ืคึผืจืึทืืขืงืืื ื ืื ืกืืึทืืืกืืืง ืืืึทื ืืื ืึท ืคึผืึทืจืึธื
ืึธืืขืจ, ืืืื ืื ืกืืึทืืืกืืืง ืืืึทื ืืื ืคืฉืื ืืืกืืขื ืืืืฃ ืื ืคืจืึธื ื ืกืืฃ, ืขืก ืืื ืึธืคื ืคึฟืึทืจ ืึทืืขืืขื ืฆื ืืขื, ืืืึธืก ืงืขื ื ืืฉื ืืืื ืึท ืืืืข ืืขืืึทื ืง. ืึทื ืฉืืึธื, ืืืจ ืงืขื ืขื ืืึทืฉืืืืขื ืขืก ืึท ืื ืื ืคึผืึธืจื ื ืืืขืจ ืืืจื ืึทืืื ื ืืขื ืืืึทืฉืคึผืื ืืื ืื ืฆื ืื ืกืืฃ ืคืื ืืืื haproxy.cfg ืืขืงืข. ืคืึทืจืืืึทืื ื ืืืขื ะธ ืคึผืึทืจืึธื ืคึฟืึทืจ ืขืคึผืขืก ืืืืขืจ:
listen stats
bind *:8181
stats enable
stats uri /
stats realm Haproxy Statistics
stats auth username:password
ื ืึธื ืึทืืื ื ืึท ื ืืึทืข ืืืกื ืขืจ ืืจืืคึผืข, ืึทืจืึธืคึผื ืขืืขื ืื ืึทืื ืกืืึทืฅ ืืจื ืืื ืง ืคืื ืื ืคืจืึธื ืืขื ื ืืจืืคึผืข. ืืืขื ืคืึทืจืืืง, ืจืึทืืขืืืขื ืื ืืขืงืข ืืื ืจืืกืืึทืจื HAProxy.
sudo systemctl restart haproxy
ืืขืจื ืึธื ืขืคึฟืขื ืขื ืื ืืึทืกืข ืืึทืืึทื ืกืขืจ ืืื ืื ื ืืึทืข ืคึผืึธืจื ื ืืืขืจ ืืื ืงืืึธืฅ ืืื ืืื ืื ื ืืืขื ืืื ืคึผืึทืจืึธื ืืืึธืก ืืืจ ืืึธื ืกืคึผืขืกืืคืืขื ืืื ืื ืงืึทื ืคืืืืขืจืืืฉืึทื ืืขืงืข.
http://load_balancer_public_ip:8181
ืืึทืื ืืืืขืจ ืึทื ืึทืืข ืืืื ืกืขืจืืืขืจืก ืืขื ืขื ื ืึธื ืืจืื ืืื ืขืคึฟืขื ืขื ืืืืื ืื ืืึทืกืข ืืึทืืึทื ืกืขืจ IP ืึธื ืงืืื ืคึผืึธืจื ื ืืืขืจื ืืื ืืืื ืืืขืืขืจืขืจ.
http://load_balancer_public_ip/
ืืืื ืืืจ ืืึธืื ืืืึท ืืื ืืกืืขืจ ืขืืืขืืข ืคืึทืจืฉืืืื ืงืืึทื ืคืื ืืึทื ืืื ื ืืืขืืขืจ ืืืืฃ ืืืื ืฆืืจืืง-ืขื ื ืกืขืจืืืขืจืก, ืืืจ ืืืขื ืืึทืืขืจืงื ืึทื ืืขืืขืจ ืืึธื ืืืจ ืจืืืึธืื ืื ืืืึทื ืืืจ ืืึทืงืืืขื ืึทื ืขื ืืคืขืจ ืคืื ืึท ืึทื ืืขืจืฉ ืืึทืืขืืึธืก. ืืืจ ืงืขื ืขื ืคึผืจืืืืจื ืคืึทืจืฉืืืขื ืข ืืึทืืึทื ืกืื ื ืึทืืืขืจืืืึทืื ืืื ืื ืงืึทื ืคืืืืขืจืืืฉืึทื ืึธืคึผืืืืืื ื ืึธืืขืจ ืืฉืขืง ืืืืก
ืืกืงื ื: HAProxy Load Balancer
ืืึทืื - ืืึธืื ืคึฟืึทืจ ืืฆืืื ืืึทืฉืืขืืืงื ืืืื HAProxy ืืึทืกืข ืืึทืืึทื ืกืขืจ! ืืคืืื ืืื ืึท ืืงืขืจืืืง ืืึทืกืข ืืึทืืึทื ืกืื ื ืกืขืืึทืคึผ, ืืืจ ืงืขื ืขื ืืืืืืืืง ืคึฟืึทืจืืขืกืขืจื ืื ืคืึธืจืฉืืขืืื ื ืืื ืึทืืืืืืึทืืืืึทืื ืคืื ืืืื ืืืขื ืึทืคึผืืึทืงืืืฉืึทื. ืืขืจ ืคืืจืขืจ ืืื ืืืืื ืึทื ืืงืืื ืฆื ืืึทืกืข ืืึทืืึทื ืกืื ื ืืื HAProxy, ืืืึธืก ืืื ืืืืืขืืืืืง ืคืื ืคืื ืืขืจ ืืื ืืืึธืก ืงืขื ืขื ืืืื ืืืืขืงื ืืื ืื ืฉื ืขื ืกืขืืึทืคึผ ืคืืจืขืจ. ืืืจ ืจืขืงืึธืืขื ืืืจื ืฆื ืขืงืกืคึผืขืจืืืขื ื ืืื ืคืึทืจืฉืืืขื ืข ืงืึทื ืคืืืืขืจืืืฉืึทื ื
ืืืจื ื ืืฆื ืงืืืคื ืืื ืืช ืฆื ืืึทืฉืืฆื ืืืืขืจ ืืืขื ืกืขืจืืืืก ืืื ืืขืืจืื, ืื ืืึทืกืข ืืึทืืึทื ืกืขืจ ืืื ืงืขื ื ืึธื ืคืึธืจืฉืืขืื ืึท ืคืื ื ืคืื ืืืจืืคืึทื. ืืืจ ืงืขื ืขื ืืืืึทืืขืจ ืคึฟืึทืจืืขืกืขืจื ืืืื ืึทืืืืืืึทืืืืึทืื ืืืจื ืื ืกืืึธืืื ื ืึท ืคืืึธืืืื ื IP ืฆืืืืฉื ืงืืืคื ืืึทืกืข ืืึทืืึทื ืกืขืจื. ืืืจ ืงืขื ืขื ืืขืคึฟืื ืขื ืืขืจ ืืืขืื ืืขื ืืื ืืื ืืืขืจ ืึทืจืืืงื
ืืขืจ ืืืขืื ืืขื ืงืืจืก
ืืงืืจ: www.habr.com