遠離塵世の方舟

Why is Yum Replaced by DNF?

摘要： Yum Package Manager has been replaced by DNF Package Manager since many long-standing issues in Yum remain unresolved. These problems include poor per 阅读全文

posted @ 2020-09-05 19:06 遠離塵世の方舟阅读(388) 评论(0) 推荐(0)

检查Linux服务器是否被攻击的常用命令及方法

摘要： 1. 使用last命令查看登录服务器的用户记录。 [root@centos8 ~]# last rusking pts/2 192.168.1.102 Sun Aug 23 18:38 still logged in rusking pts/2 192.168.1.102 Sun Aug 23 18 阅读全文

posted @ 2020-08-23 23:03 遠離塵世の方舟阅读(2119) 评论(0) 推荐(1)

DNF Package Management-CentOS 8

摘要： 1. The syntax of the DNF command 语法dnf [Option] [Command] [Package_Name] 2. Location of the DNF Configuration Files 相关配置文件 Main Configuration: /etc/dn 阅读全文

posted @ 2020-08-08 23:20 遠離塵世の方舟阅读(986) 评论(0) 推荐(0)

Change the HostName of CentOS 8

摘要： There are three classes of hostname: static, pretty, and transient.static - The traditional hostname. It is stored in the /etc/hostname file and can b 阅读全文

posted @ 2020-08-06 22:11 遠離塵世の方舟阅读(517) 评论(0) 推荐(0)

CentOS8 修改SSH端口，禁用root登录，修改SSH协议

摘要： [root@centos8 ~]# cat /etc/redhat-release CentOS Linux release 8.2.2004 (Core) 1. Create Test SUDO user and add to wheel group.[root@centos8 ~]# usera 阅读全文

posted @ 2020-08-06 21:30 遠離塵世の方舟阅读(4874) 评论(0) 推荐(0)

CentOS8 Disable IPV6 and Selinux

摘要： #ifconfig -a | grep inet6#ip addr show | grep net6 #vi /etc/default/grubGRUB_CMDLINE_LINUX 该行增加ipv6.disable=1 [root@centos8 ~]# grep CMDLINE /etc/defa 阅读全文

posted @ 2020-08-06 15:35 遠離塵世の方舟阅读(698) 评论(0) 推荐(0)

Ubuntu 20.04 Install SSH, Change SSH Port, Enable root

摘要： 1. Install SSH service $ sudo apt install openssh-server$ systemctl status sshd$ sudo systemctl restart ssh$ sudo ufw allow ssh$ sudo systemctl enable 阅读全文

posted @ 2020-08-02 18:40 遠離塵世の方舟阅读(455) 评论(0) 推荐(0)

ubuntu 20.04 重启网卡服务

摘要： 1. 图形界面 Turn Off，之后重新Connect 2. The first and recommended command to restart your network is: $ sudo netplan apply 3. Network restart for networkd man 阅读全文

posted @ 2020-08-02 15:00 遠離塵世の方舟阅读(14938) 评论(0) 推荐(0)

Ubuntu 20.04 Install Guest Additions for VirtualBox

摘要： Ubuntu 20.04 Install Guest Additions for VirtualBox时有报错： This system is currently not set up to build kernel modules.Please install the gcc make perl 阅读全文

posted @ 2020-07-26 20:28 遠離塵世の方舟阅读(2463) 评论(1) 推荐(1)

Mysql-show processlist

摘要： mysql> show processlist; Analyzing线程对MyISAM 表的统计信息做分析(例如, ANALYZE TABLE )。checking permissions线程检查服务器是否具有所需的权限来执行该语句。Checking table线程正在执行表检查操作。cleanin 阅读全文

posted @ 2020-07-19 03:03 遠離塵世の方舟阅读(249) 评论(0) 推荐(0)