NFS - Server 配置
1. 安装所需软件;
[root@s1 ~]# yum install nfs-utils
2. 启动服务;
[root@s1 ~]# systemctl enable rpcbind [root@s1 ~]# systemctl restart rpcbind [root@s1 ~]# systemctl enable nfs-server [root@s1 ~]# systemctl restart nfs-server.service
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Linux, RHEL, CentOS, etc.
1. 安装所需软件;
[root@s1 ~]# yum install nfs-utils
2. 启动服务;
[root@s1 ~]# systemctl enable rpcbind [root@s1 ~]# systemctl restart rpcbind [root@s1 ~]# systemctl enable nfs-server [root@s1 ~]# systemctl restart nfs-server.service
Target的IP地址是192.168.122.243
1.安装所需软件;
[root@s1 ~]# yum install targetcli -y
2. 用targetcli进入交互式配置;
[root@s1 ~]# targetcli
https://calomel.org/unbound_dns.html
https://unbound.net/documentation/index.html
[root@s1 ~]# yum install unbound -y [root@s1 ~]# systemctl start unbound.service [root@s1 ~]# systemctl enable unbound.service
[root@s1 ~]# yum group install mariadb mariadb-client -y [root@s1 ~]# systemctl enable mariadb.service [root@s1 ~]# systemctl start mariadb.service [root@s1 ~]# mysql_secure_installation Set root password? [Y/n] Y New password: Re-enter new password: (按默认配置一路回车下去就行) [root@s1 ~]# firewall-cmd --permanent --add-service=mysql [root@s1 ~]# firewall-cmd --reload [root@s1 ~]# ss -tulnp | grep mysql tcp LISTEN 0 50 *:3306 *:* users:(("mysqld",10844,13))
RHEL7上的cron跟RHEL6上基本一致,可以参考https://feichashao.com/rhel6-cron/
直接修改/etc/crontab 可以定义某时以某用户的身份执行某命令。
格式是
* * * * * user-name command to executed
前面的时间是 分,时,日,月,周
继续阅读“RHEL7: 计划任务(cron jobs)”
http://www.ntp.org/rfc.html
http://linux.vbird.org/linux_server/0440ntp.php
[root@rhel7-0 ~]# timedatectl Local time: Wed 2014-12-31 12:47:07 EST Universal time: Wed 2014-12-31 17:47:07 UTC RTC time: Sun 2015-01-04 08:51:13 Timezone: America/New_York (EST, -0500) NTP enabled: n/a NTP synchronized: no RTC in local TZ: no DST active: no Last DST change: DST ended at Sun 2014-11-02 01:59:59 EDT Sun 2014-11-02 01:00:00 EST Next DST change: DST begins (the clock jumps one hour forward) at Sun 2015-03-08 01:59:59 EST Sun 2015-03-08 03:00:00 EDT
http://fedoraproject.org/wiki/Changes/NoDefaultSyslog
http://0pointer.de/blog/projects/journalctl.html
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/s1-Using_the_Journal.html
https://wiki.archlinux.org/index.php/systemd
日志的优先级。
Code | Priority | Severity |
---|---|---|
0 | emerg | System is unusable. |
1 | alert | Action must be taken immediately. |
2 | crit | Critical condition. |
3 | err | Non-critical error condition. |
4 | warning | Warning condition. |
5 | notice | Normal but significant event. |
6 | info | Informational event. |
7 | debug | Debugging-level message. |