could not bind socket while haproxy restart
I m restarting HAproxy by following command
haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -sf $(cat /var/run/haproxy.pid)
but i get following message
[ALERT] 183/225022 (9278) : Starting proxy appli1-rewrite: cannot bind socket
[ALERT] 183/225022 (9278) : Starting proxy appli2-insert: cannot bind socket
[ALERT] 183/225022 (9278) : Starting proxy appli3-relais: cannot bind socket
[ALERT] 183/225022 (9278) : Starting proxy appli4-backup: cannot bind socket
[ALERT] 183/225022 (9278) : Starting proxy ssl-relay: cannot bind socket
[ALERT] 183/225022 (9278) : Starting proxy appli5-backup: cannot bind socket
my haproxy.cfg file looks likefollowing
global
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
#log loghost local0 info
maxconn 4096
#chroot /usr/share/haproxy
user haproxy
group haproxy
daemon
#debug
#quiet
defaults
log global
mode http
option httplog
option dontlognull
retries 3
option redispatch
maxconn 2000
contimeout 5000
clitimeout 50000
srvtimeout 50000
listen appli1-rewrite 0.0.0.0:10001
cookie SERVERID rewrite
balance roundrobin
server app1_1 192.168.34.23:8080 cookie app1inst1 check inter 2000 rise 2 fall 5
server app1_2 192.168.34.32:8080 cookie app1inst2 check inter 2000 rise 2 fall 5
server app1_3 192.168.34.27:8080 cookie app1inst3 check inter 2000 rise 2 fall 5
server app1_4 192.168.34.42:8080 cookie app1inst4 check inter 2000 rise 2 fall 5
listen appli2-insert 0.0.0.0:10002
option httpchk
balance roundrobin
cookie SERVERID insert indirect nocache
server inst1 192.168.114.56:80 cookie server01 check inter 2000 fall 3
server inst2 192.168.114.56:81 cookie server02 check inter 2000 fall 3
capture cookie vgnvisitor= len 32
option httpclose # disable keep-alive
rspidel ^Set-cookie:\ IP= # do not let this cookie tell our internal IP address
listen appli3-relais 0.0.0.0:10003
dispatch 192.168.135.17:80
listen appli4-backup 0.0.0.0:10004
option httpchk /index.html
option persist
balance roundrobin
server inst1 192.168.114.56:80 check inter 2000 fall 3
server inst2 192.168.114.56:81 check inter 2000 fall 3 backup
listen ssl-relay 0.0.0.0:8443
option ssl-hello-chk
balance source
server inst1 192.168.110.56:443 check inter 2000 fall 3
server inst2 192.168.110.57:443 check inter 2000 fall 3
server back1 192.168.120.58:443 backup
listen appli5-backup 0.0.0.0:10005
option httpchk *
balance roundrobin
cookie SERVERID insert indirect nocache
server inst1 192.168.114.56:80 cookie server01 check inter 2000 fall 3
server inst2 192.168.114.56:81 cookie server02 check inter 2000 fall 3
server inst3 192.168.114.57:80 backup check inter 2000 fall 3
capture cookie ASPSESSION len 32
srvtimeout 20000
option httpclose # disable keep-alive
option checkcache # block response if set-cookie & cacheable
rspidel ^Set-cookie:\ IP= # do not let this cookie tell our internal IP address
#errorloc 502 http://192.168.114.58/error502.html
#errorfile 503 /etc/haproxy/errors/503.http
errorfile 400 /etc/haproxy/errors/400.http
errorfile 403 /etc/haproxy/errors/403.http
errorfile 408 /etc/haproxy/errors/408.http
errorfile 500 /etc/haproxy/errors/500.http
errorfile 502 /etc/haproxy/errors/502.http
errorfile 503 /etc/haproxy/errors/503.http
errorfile 504 /etc/haproxy/errors/504.http
what is wrong with my aproach
Two options:
- You aren't running as root; probably needs a
sudo
in front of your command to start it on the command line if you aren't running as root (check withwhoami
). - Another process, likely another instance of HAProxy, is already bound to those ports. Check with
netstat -apn
.
On RedHat Linux with enabled SELinux (which should be enabled), just enable the haproxy_connect_any boolean value, which allows haproxy to connect the socket to any port:
setsebool -P haproxy_connect_any on
Maybe is because of selinux I type
setenforce 0
and solve the problem. The command is to make selinux to premissive mode. A not proper set selinux may block many service or connection.