Telnet does not pass port 11211

Problem Description:

1 follow the official website steps to install and start the memcached in the virtual machine . 2 the virtual machine itself telnet11211 port can be connected, 3 Use the XMANAGER22 port to connect to a virtual machine, but always telnet to a different 11211 port

Problem reason: request is blocked by firewall

Workaround: Turn off the firewall

There was a problem shutting down the firewall:

Failed to restart Iptables.service:Unit iptables.service Failed to load:no such file or directory.

Workaround:

Firewall configuration after performing service iptables save appears "Failed to restart Iptables.service:Unit iptables.service Failed to Load:no Such file or directory. " error, in CentOS 7 or Rhel 7 or fedora The firewall is managed by FIREWALLD, of course you can restore the traditional management mode. or use the new command to manage it.

Telnet does not pass port 11211