/etc/fstab
机自动挂载分区/磁盘，规定哪个分区/设备，挂载到哪里
1 [root@oldboy ~]# cat /etc/fstab 2 3 # 4 # /etc/fstab 5 # Created by anaconda on Sun Aug 12 17:26:53 2018 6 # 7 # Accessible filesystems, by reference, are maintained under '/dev/disk' 8 # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info 9 # 10 UUID=c9b74b1a-41cd-4260-9444-6245ab833dd9 / ext4 defaults 1 1 11 UUID=8880df83-5bf8-40db-bf6f-bf878b7a7e2e /boot ext4 defaults 1 2 12 UUID=3144b92b-c079-4239-9a91-84111d2f1ac1 swap swap defaults 0 0 13 tmpfs /dev/shm tmpfs defaults 0 0 14 devpts /dev/pts devpts gid=5,mode=620 0 0 15 sysfs /sys sysfs defaults 0 0 16 proc /proc proc defaults 0 0
/etc/resolv.conf
DNS临时配置文件
1 [root@oldboy ~]# cat /etc/resolv.conf 2 ; generated by /sbin/dhclient-script 3 search localdomain 4 nameserver 192.168.182.2 5 [root@oldboy ~]# vi /etc/resolv.conf 6 ; generated by /sbin/dhclient-script 7 search localdomain 8 nameserver 192.168.182.2 9 nameserver 8.8.8.8 10 ~ 11 ~ 12 ~ 13 ~ 14 "/etc/resolv.conf" 4L, 100C written 15 [root@oldboy ~]# cat /etc/resolv.conf 16 ; generated by /sbin/dhclient-script 17 search localdomain 18 nameserver 192.168.182.2 19 nameserver 8.8.8.8
/etc/hosts
主机名解析文件
hosts文件里存放ip地址与域名的对应关系
[root@oldboy ~]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6