在apache中绑定非http标准端口时，一直出现如下的错误提示：
[root@localhost ~]# /etc/init.d/httpd start
Starting httpd: (13)Permission denied: make_sock: could not bind to
address 0.0.0.0:888
no listening sockets available, shutting down
Unable to open logs
[FAILED]
解决方案：
增加selinux中http的端口
semanage port -l|grep http #查看SELinux下http相关端口
semanage port -a -t http_port_t -p tcp 888 #增加这个非标准端口即可
[root@localhost ~]# /etc/init.d/httpd restart 或者 service httpd
start
Stopping httpd: [ OK ]
CentOS下安装semanage
安装：
# yum -y install policycoreutils-python
semanage使用方法：
/usr/sbin/semanage:
semanage [ -S store ] -i [ input_file | - ]
semanage [ -S store ] -o [ output_file | - ]
semanage {boolean|login|user|port|interface|module|node|fcontext} -{l|D|E} [-n]
semanage login -{a|d|m} [-sr] login_name | %groupname
semanage user -{a|d|m} [-LrRP] selinux_name
semanage port -{a|d|m} [-tr] [ -p proto ] port | port_range
semanage interface -{a|d|m} [-tr] interface_spec
semanage module -{a|d|m} [--enable|--disable] module
semanage node -{a|d|m} [-tr] [ -p protocol ] [-M netmask] addr
semanage fcontext -{a|d|m} [-efrst] file_spec
semanage boolean -{d|m} [--on|--off|-1|-0] -F boolean | boolean_file
semanage permissive -{d|a|l} type
semanage dontaudit [ on | off ]
Primary Options:
-a, --add Add a OBJECT record NAME
-d, --delete Delete a OBJECT record NAME
-m, --modify Modify a OBJECT record NAME
-i, --input Input multiple semange commands in a transaction
-o, --output Output current customizations as semange commands
-l, --list List the OBJECTS
-E, --extract extract customizable commands
-C, --locallist List OBJECTS local customizations
-D, --deleteall Remove all OBJECTS local customizations
-h, --help Display this message
-n, --noheading Do not print heading when listing OBJECTS
-S, --store Select and alternate SELinux store to manage
Object-specific Options (see above):
-f, --ftype File Type of OBJECT
"" (all files)
-- (regular file)
-d (directory)
-c (character device)
-b (block device)
-s (socket)
-l (symbolic link)
-p (named pipe)
-F, --file Treat target as an input file for command, change multiple settings
-p, --proto Port protocol (tcp or udp) or internet protocol version of node (ipv4 or ipv6)
-M, --mask Netmask
-e, --equal Substitue source path for dest path when labeling
-P, --prefix Prefix for home directory labeling
-L, --level Default SELinux Level (MLS/MCS Systems only)
-R, --roles SELinux Roles (ex: "sysadm_r staff_r")
-s, --seuser SELinux User Name
-t, --type SELinux Type for the object
-r, --range MLS/MCS Security Range (MLS/MCS Systems only)
--enable Enable a module
--disable Disable a module