在vagrant
Ubuntu 18.04.02 机器上
root@ubuntu-bionic:~# ss -tulanp | grep -i 3306
root@ubuntu-bionic:~# docker run -d --rm -e "MYSQL_ROOT_PASSWORD=root" -p 3306:3306 -v mysql_volume:/var/lib/mysql --name test_mysql mysql:5.7
29401546117d55b5b8d122a225352a6534cf8a9bbb611a195adbbe3ff7341909
root@ubuntu-bionic:~# ss -tulanp | grep -i 3306
tcp LISTEN 0 128 *:3306 *:* users:(("docker-proxy",pid=1986,fd=4))
root@ubuntu-bionic:~# firewall-cmd --list-all
public
target: default
icmp-block-inversion: no
interfaces:
sources:
services: ssh dhcpv6-client
ports: 3306/tcp
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
root@ubuntu-bionic:~# hostname -I
10.0.2.15 192.168.33.10 172.17.0.1
然后在我的主机上:
/home/pkaramol/VirtualBox VMs
$ nc -zv -w 2 192.168.33.10 3306
Connection to 192.168.33.10 3306 port [tcp/mysql] succeeded!
3306
我现在将尝试删除我明确添加的端口:
回到我的vagrant
机器:
root@ubuntu-bionic:~# firewall-cmd --remove-port=3306/tcp --zone=public --permanent
success
root@ubuntu-bionic:~# firewall-cmd --reload
success
root@ubuntu-bionic:~# firewall-cmd --list-all
public
target: default
icmp-block-inversion: no
interfaces:
sources:
services: ssh dhcpv6-client
ports:
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
回到我的主机:
$ nc -zv -w 2 192.168.33.10 3306
Connection to 192.168.33.10 3306 port [tcp/mysql] succeeded!
为什么重新加载不能立即应用新状态?
重新启动机器后问题就消失了vagrant
,在这种情况下我得到
$ nc -zv -w 2 192.168.33.10 3306
nc: connect to 192.168.33.10 port 3306 (tcp) failed: Connection refused
答案1
我还没有遇到过这样的问题。只是猜测,但是如果您尝试(这不是推荐的做法)firewall-cmd --complete-reload
重新加载内核过滤器并且它将终止任何连接,会发生什么