How to configure files in linux

Linux network configuration file

1. System network device configuration file/etc/sysconfig/network -scripts

]# vim /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0 //Indicates the name of the network card physical device

BOOTPROTO =dhcp //Indicates whether to configure a static or dynamic IP address for the network card (none: indicates no need to start the protocol; bootp: indicates the use of the BOOTP protocol;

dhcp: uses the dhcp protocol to dynamically obtain the IP address; static: indicates manual setting of the static IP address IP address)

ONBOOT=yes //Indicates whether to activate the network card when starting the system, yes means activation, no does not activate

TYPE=Ethernet //Network type

USERCTL= yes

PEERDNS=yes

IPV6INIT=no

PERSISTENT_DHCLIENT=1

HWADDR= //Indicates the MAC address of the network card

GATEWAY = //Indicates the gateway address

NETMASK //Indicates the subnet mask

IPADDR= //Indicates the IP address

]# systemctl restart network (restart service)

2. /etc/resolv.conf domain name resolution configuration file

nameserver: indicates that the host specified by the IP address used to resolve the domain name is the domain name server;

search: Represents DNS search path

3, /etc/hosts host name matches IP address

4, /etc/networks network name and network address Mapping relationship between

]# vim /etc/networks

default 0.0.0.0

loopback 127.0.0.0

link-local 169.254 .0.0

5. /etc/protocols defines the protocols used by the host, as well as related information such as the protocol number of each protocol

]# vim /etc/protocols

6./etc/services defines the names, protocol types, service port numbers and other information of all services in the system. This file is a database file corresponding to the service name and service port number

]# vim /etc/services

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