centos7數據庫連接使用127.0.0.1報permission denied，使用localhost報No such file or directory
阿新 • • 發佈：2018-07-14
臨時 pro target lamp環境 processes sele mount sdn -i
安裝lamp環境後，測試數據庫連接。
當host使用127.0.0.1時，報錯：(HY000/2002): Permission denied。
把host換成localhost後，又報錯：SQLSTATE[HY000] [2002] No such file or directory。
最後發現是因為沒有關閉selinux，通常情況下載安裝完CentOS7後，默認情況下SElinux是啟用狀態。
[root@rdo ~]# sestatus SELinux status: enabled SELinuxfs mount: /sys/fs/selinux SELinux root directory: /etc/selinux Loaded policy name: targeted Current mode: enforcing Mode from config file: enforcing Policy MLS status: enabled Policy deny_unknown status: allowed Max kernel policy version: 28
如果要臨時關閉，可以執行：
setenforce 0此時狀態如下：
[root@rdo ~]# sestatus SELinux status: enabled SELinuxfs mount: /sys/fs/selinux SELinux root directory: /etc/selinux Loaded policy name: targeted Current mode: permissive Mode from config file: enforcing Policy MLS status: enabled Policy deny_unknown status: allowed Max kernel policy version: 28
如果要永久關閉，可以修改配置文件/etc/selinux/config，將SELINU置為disabled。
[root@rdo ~]# cat /etc/selinux/config # This file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead of enforcing. # disabled - No SELinux policy is loaded. #SELINUX=enforcing SELINUX=disabled # SELINUXTYPE= can take one of three two values: # targeted - Targeted processes are protected, # minimum - Modification of targeted policy. Only selected processes are protected. # mls - Multi Level Security protection. SELINUXTYPE=targeted
修改該配置文件也可以執行下面的命令來完成：
sed -i ‘/SELINUX/s/enforcing/disabled/‘ /etc/selinux/config
修改完成後，保存重啟，重啟後狀態如下：
[root@rdo ~]# sestatus SELinux status: disabled
文章本人親測有效。
文章轉載：https://blog.csdn.net/eclothy/article/details/48265445
centos7數據庫連接使用127.0.0.1報permission denied，使用localhost報No such file or directory