求帮忙查看红帽的解决方案帮助文档

• 資深大佬 : LokiSharp

  注册个开发者账户就能随便看了

• 主 資深大佬 : yuyujulin

  @LokiSharp 注册了一个账号，单估计不是开发者账号，我查查能不能注册开发者账号，现在能帮忙查一下吗？先谢谢了

• 資深大佬 : echo1937

  Resolution
  portmapper on RHEL-5 could be secured by having it listen on localhost only. rpcbind does not offer this option. tcpwrappers and firewall can be used for securing both portmapper and rpcbind.
  To secure rpcbind with tcpwrappers use something like:
  Raw
  # cat /etc/hosts.allow
  rpcbind: 127.0.0.1

  # cat /etc/hosts.deny
  rpcbind: ALL
  Root Cause
  The -h option for rpcbind is not expected to force rpcbind to listen on localhost only. The description from the manual page (man 8 rpcbind):

  Raw
  -h Specify specific IP addresses to bind to for UDP requests. This
  option may be specified multiple times and is typically necessary
  when running on a multi-homed host. If no -h option is speci-
  fied, rpcbind will bind to INADDR_ANY, which could lead to prob-
  lems on a multi-homed host due to rpcbind returning a UDP packet
  from a different IP address than it was sent to. Note that when
  specifying IP addresses with -h, rpcbind will automatically add
  127.0.0.1 and if IPv6 is enabled, ::1 to the list.

• 資深大佬 : LokiSharp

  @yuyujulin #2 https://developers.redhat.com/ 下面有个红色的 Join Red Hat Developer，注册一下就能拿到 Red Hat Developer Subscription

• 主 資深大佬 : yuyujulin

  @echo1937 万分感谢

• 主 資深大佬 : yuyujulin

  @LokiSharp 感谢，感谢