启动配置
重置root用户密码
rd.break
mount -o remount,rw /sysroot chroot /sysroot passwd touch /.autorelabel exit reboot
配置网卡信息
[root@localhost ~]# ifconfig [root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-eno16777728 BOOTPROTO=none ONBOOT=yes IPADDR0=192.168.10.10 [root@localhost ~]# systemctl restart network [root@localhost ~]# ifconfig [root@localhost ~]# nm-connection-editor [root@localhost ~]# nmtui [root@localhost ~]# ifconfig
挂载光盘
[root@localhost ~]# mkdir -p /media/cdrom [root@localhost ~]# mount /dev/cdrom /media/cdrom [root@localhost ~]# df -h [root@localhost ~]# vim /etc/fstab /dev/cdrom /media/cdrom iso9660 defaults 0 0 [root@localhost ~]# mount -a [root@localhost ~]# blkid [root@localhost ~]# lsblk
配置本地Yum仓库
[root@localhost ~]# vim /etc/yum.repos.d/rhcsa.repo [rhcsa] name=rhcsa baseurl=file:///media/cdrom enabled=1 gpgcheck=0
配置网络Yum仓库
下载对应版本 repo 文件, 放入 /etc/yum.repos.d/ (操作前请做好相应备份)
- CentOS5 ：http://mirrors.163.com/.help/CentOS5-Base-163.repo
- CentOS6 ：http://mirrors.163.com/.help/CentOS6-Base-163.repo
- CentOS7 ：http://mirrors.163.com/.help/CentOS7-Base-163.repo
[root@linuxprobe yum.repos.d]# wget http://mirrors.163.com/.help/CentOS7-Base-163.repo [root@linuxprobe yum.repos.d]# mv CentOS7-Base-163.repo CentOS-Base.repo [root@linuxprobe yum.repos.d]# vim CentOS-Base.repo 12 [base] 13 name=CentOS-$7 - Base - 163.com 14 #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch &repo=os 15 baseurl=http://mirrors.163.com/centos/7/os/$basearch/ 16 gpgcheck=1 17 gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7 18 19 #released updates 20 [updates] 21 name=CentOS-$7 - Updates - 163.com 22 #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch &repo=updates 23 baseurl=http://mirrors.163.com/centos/7/updates/$basearch/ 24 gpgcheck=1 25 gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7 26 27 #additional packages that may be useful 28 [extras] 29 name=CentOS-$7 - Extras - 163.com 30 #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch &repo=extras 31 baseurl=http://mirrors.163.com/centos/7/extras/$basearch/ 32 gpgcheck=1 33 gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7 34 35 #additional packages that extend functionality of existing packages 36 [centosplus] 37 name=CentOS-$7 - Plus - 163.com 38 baseurl=http://mirrors.163.com/centos/7/centosplus/$basearch/ 39 gpgcheck=1 40 enabled=0 41 gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7
普通用户添加sudo权限
[root@linuxprobe ~]# ll /etc/sudoers
-r--r-----. 1 root root 4000 Jan 15 2014 /etc/sudoers
[root@linuxprobe ~]# chmod u+w /etc/sudoers
[root@linuxprobe ~]# ll /etc/sudoers -rw-r-----. 1 root root 4000 Jan 15 2014 /etc/sudoers
[root@linuxprobe ~]# vim /etc/sudoers 99 linuxprobe ALL=(ALL) ALL
[root@linuxprobe ~]# chmod u-w /etc/sudoers
[root@linuxprobe ~]# ll /etc/sudoers -r--r-----. 1 root root 4028 Jan 11 13:27 /etc/sudoers
