解决阿里云CentOS 7重启后网站无法访问的问题

摘要

每次阿里云主机重启后,总是无法访问网站。查看进程也发现了 mysqld、php、nginx等都也启动了,ping 也没问题,但就是无法访问。经过一番排查,这是 CentOS 7 最新的 firewalld 防火墙引起的问题。

参考解决方案

用iptables-services来替代 firewalld

yum -y install iptables-services
systemctl mask firewalld
systemctl enable iptables
systemctl stop firewalld
systemctl start iptables

然后再修改 iptables 的防火墙规则。修改文件 /etc/sysconfig/iptables,将 80 和 443等 端口放行,问题解决

完整内容如下:

# sample configuration for iptables service
# you can edit this manually or use system-config-firewall
# please do not ask us to add additional ports/services to this default configuration
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
标签:Centos 发布于:2019-11-04 12:55:18