我的环境：
# cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.3 (Maipo) # docker --version Docker version 1.12.3, build 9858ec7 # 任何时候我尝试运行容器使用-p标志，我最终以下错误：
# docker run -p 8080:80 -d drupal cb0a0e6b9b3c582e28e4c0c44bc8360e81d08b480a451a0821649c4363ade528 /usr/bin/docker-latest: Error response from daemon: driver failed programming external connectivity on endpoint reverent_newton (88f66e815eb12c5949965e9434c94855205b5705f07b8ffaa54b065f91a86712): Error starting userland proxy:. #
netstat ：
# netstat -nat | grep LISTEN tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN tcp6 0 0 :::22 :::* LISTEN tcp6 0 0 ::1:25 :::* LISTEN #
/var/log/messages ：
# grep dockerd-latest: /var/log/messages | tail -5 Jan 17 11:58:01 X dockerd-latest: time="2017-01-17T11:58:01.494743371-05:00" level=info msg="{Action=create, Username=root, LoginUID=0, PID=17125}" Jan 17 11:58:01 X dockerd-latest: time="2017-01-17T11:58:01.718468575-05:00" level=info msg="{Action=start, Username=root, LoginUID=0, PID=17125}" Jan 17 11:58:01 X dockerd-latest: time="2017-01-17T11:58:01.815703456-05:00" level=warning msg="Failed to allocate and map port 8080-8080: Error starting userland proxy: " Jan 17 11:58:01 X dockerd-latest: time="2017-01-17T11:58:01.882581058-05:00" level=error msg="Handler for POST /v1.24/containers/c1eb945fbb9ea3021e2e2c25b220bf2fbecce1c84dda465d84dd9a8093508063/start returned error: driver failed programming external connectivity on endpoint mad_darwin (699b8a6c9d618a12e62bb68de6cbc8871e9edf754fc1e1f1e862d93fd6b5f58c): Error starting userland proxy: " Jan 17 11:58:01 X dockerd-latest: time="2017-01-17T11:58:01.882631763-05:00" level=error msg="Handler for POST /v1.24/containers/c1eb945fbb9ea3021e2e2c25b220bf2fbecce1c84dda465d84dd9a8093508063/start returned error: driver failed programming external connectivity on endpoint mad_darwin (699b8a6c9d618a12e62bb68de6cbc8871e9edf754fc1e1f1e862d93fd6b5f58c): Error starting userland proxy: " #
SELinux ：
# getenforce Enforcing # setenforce 0 # getenforce Permissive #
请指教。