• 进到系统etc目录下
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Last login: Fri Dec 13 22:02:18 2019 from 192.168.124.19
[root@localhost ~]# cd /etc
[root@localhost etc]# ls
adjtime                  chkconfig.d   dbus-1                   favicon.png    gshadow      issue.net      login.defs                my.cnf             pki             rc0.d           rsyslog.conf   skel            sysctl.d            xinetd.d
aliases                  chrony.conf   default                  filesystems    gshadow-     kdump.conf     logrotate.conf            my.cnf.d           plymouth        rc1.d           rsyslog.d      ssh             systemd             yum
aliases.db               chrony.keys   depmod.d                 firewalld      gss          kernel         logrotate.d               NetworkManager     pm              rc2.d           rwtab          ssl             system-release      yum.conf
alternatives             cron.d        dhcp                     fstab          host.conf    krb5.conf      lvm                       networks           polkit-1        rc3.d           rwtab.d        statetab        system-release-cpe  yum.repos.d
anacrontab               cron.daily    DIR_COLORS               gcrypt         hostname     krb5.conf.d    machine-id                nsswitch.conf      popt.d          rc4.d           sasl2          statetab.d      terminfo
asound.conf              cron.deny     DIR_COLORS.256color      gnupg          hosts        ld.so.cache    magic                     nsswitch.conf.bak  postfix         rc5.d           securetty      subgid          tmpfiles.d
audisp                   cron.hourly   DIR_COLORS.lightbgcolor  GREP_COLORS    hosts.allow  ld.so.conf     makedumpfile.conf.sample  openldap           ppp             rc6.d           security       subuid          tuned
audit                    cron.monthly  dracut.conf              groff          hosts.deny   ld.so.conf.d   man_db.conf               opt                prelink.conf.d  rc.d            selinux        sudo.conf       udev
bash_completion.d        crontab       dracut.conf.d            group          init.d       libaudit.conf  mke2fs.conf               os-release         printcap        rc.local        services       sudoers         vconsole.conf
bashrc                   cron.weekly   e2fsck.conf              group-         inittab      libnl          modprobe.d                pam.d              profile         redhat-release  sestatus.conf  sudoers.d       virc
binfmt.d                 crypttab      environment              grub2.cfg      inputrc      libuser.conf   modules-load.d            passwd             profile.d       resolv.conf     shadow         sudo-ldap.conf  wpa_supplicant
centos-release           csh.cshrc     ethertypes               grub2-efi.cfg  iproute2     locale.conf    motd                      passwd-            protocols       rpc             shadow-        sysconfig       X11
centos-release-upstream  csh.login     exports                  grub.d         issue        localtime      mtab                      pkcs11             python          rpm             shells         sysctl.conf     xdg
  • 修改hostname文件
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[root@localhost etc]# vim hostname
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localhost.localdomain
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"hostname"

修改为自己的

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chobon
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:wq

wq保存

检查下是否修改成功

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[root@localhost etc]# cat hostname
chobon
[root@localhost etc]#
  • 重启系统
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[root@localhost etc]# reboot

等系统重启后

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Last login: Fri Dec 13 22:49:08 2019 from 192.168.124.19
[root@chobon ~]#