centos open port
# firewall-cmd --zone=public --add-port=55555/tcp --permanent
successcentos open port
# firewall-cmd --zone=public --add-port=55555/tcp --permanent
successopen port 22 centos 7
##By firewall-add port 22
firewall-cmd --zone=public --add-port=22/tcp --permanent
firewall-cmd --reload
#check if port 22 open
iptables-save | grep 22
#Remove port 22
firewall-cmd --zone=public --remove-port=22/tcp --permanent
firewall-cmd --reload
##By iptables= add port 22
service iptables status
service iptables start
chkconfig --list iptables
chkconfig iptables on
iptables -L
#add port
iptables -A INPUT -i eth0 -p tcp --dport 22 -j ACCEPT
#delete port
iptables -D INPUT -i eth0 -p tcp --dport 22 -j ACCEPT
#check if port 22 open
iptables-save | grep 22centos 7 port open
firewall-cmd --zone=public --add-port=55555/tcp --permanent
firewall-cmd --reloadhow to allow traffic on port 8080 in centos 7
firewall-cmd --reloadCopyright © 2021 Codeinu
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