SELinux

setsebool命令
是selinux的相关设置项

这是SELinux的设置命令.
man setsebool:
NAME
       setsebool – set SELinux boolean value
在不熟悉SELnux前，把SELinux关掉也可以的。有时间研究下SELinux。  
Redhat从FC3开始，就使用了SELinux来增强安全，但是使用起来有时候太繁琐，就想关闭它，但是如果安装服务器的时候开始没有图形界面，还真很难找到地方可以关闭。

正确方法如下：修改/etc/selinux/config文件中的SELINUX=”" 为 disabled ，然后重启。

下面是一些 收集来的 设置命令
===ftp===
//If you want to share files anonymously
chcon -R -t public_content_t /var/ftp
//If you want to setup a directory where you can upload files
chcon -t public_content_rw_t /var/ftp/incoming
You must also turn on the boolean allow_ftpd_anon_write
setsebool -P allow_ftpd_anon_write=1
//If you are setting up this machine as a ftpd server and wish to allow users to access their home directorories
setsebool -P ftp_home_dir 1
//If you want to run ftpd as a daemon
setsebool -P ftpd_is_daemon 1
//You can disable SELinux protection for the ftpd daemon
setsebool -P ftpd_disable_trans 1

===httpd===
//If you want a particular domain to write to the public_content_rw_t domain
setsebool -P allow_httpd_anon_write=1
or
setsebool -P allow_httpd_sys__anon_write=1
//httpd can be setup to allow cgi s to be executed
setsebool -P httpd_enable_cgi 1
//If you want to allow access to users home directories
setsebool -P httpd_enable_homedirs 1
chcon -R -t httpd_sys_content_t ~user/public_html
//httpd is allowed access to the controling terminal
setsebool -P httpd_tty_comm 1
//such that one httpd service can not interfere with another
setsebool -P httpd_unified 0
//loadable modules run under the same context as httpd
setsebool -P httpd_builtin_ing 0
//httpd s are allowed to connect out to the network
setsebool -P httpd_can_network_connect 1
// You can disable suexec transition
setsebool -P httpd_suexec_disable_trans 1
//You can disable SELinux protection for the httpd daemon by executing
setsebool -P httpd_disable_trans 1
service httpd restart

===named===
//If you want to have named update the master zone files
setsebool -P named_write_master_zones 1
//You can disable SELinux protection for the named daemon by executing
setsebool -P named_disable_trans 1
service named restart

===nfs===
//If you want to setup this machine to share nfs partitions read only
setsebool -P nfs_export_all_ro 1
//If you want to share files read/write
setsebool -P nfs_export_all_rw 1
//If you want to use a remote NFS server for the home directories on this machine
setsebool -P use_nfs_home_dirs 1

===samba===
//If you want to share files other than home directorie
chcon -t samba_share_t /directory
//If you want to share files with multiple domains
setsebool -P allow_smbd_anon_write=1
//If you are setting up this machine as a Samba server and wish to share the home directories
setsebool -P samba_enable_home_dirs 1
//If you want to use a remote Samba server for the home directories on this machine
setsebool -P use_samba_home_dirs 1
//You can disable SELinux protection for the samba daemon by executing
setsebool -P smbd_disable_trans 1
service smb restart

===rsync===
//If you want to share files using the rsync daemon
chcon -t public_content_t /directories
//If you want to share files with multiple domains
setsebool -P allow_rsync_anon_write=1
//You can disable SELinux protection for the rsync daemon by executing
setsebool -P rsync_disable_trans 1

===kerberos===
//allow your system to work properly in a Kerberos environment
setsebool -P allow_kerberos 1
//If you are running Kerberos daemons kadmind or krb5kdc
setsebool -P krb5kdc_disable_trans 1
service krb5kdc restart
setsebool -P kadmind_disable_trans 1
service kadmind restart

===nis===
Allow your system to work properly in a NIS environment
setsebool -P allow_ypbind 1