Lesson5 -Linux Network Configuration

basic tasks

1.ifconfig show ip,networkcard infomation eth0

2.sudo dhclient release renew IP configuration

3.sudo /etc/init.d/neworking restart restart networking servers when you change severs configuration

Configuration files

4. sudo vim /etc/network/interface

auto eth0

iface eth0 inet stadig

address 10.1.10.5

netmask

network 10.1.10.0

broadcast 10.1.10.255

gateway 10.1.10.1 router

auto eth0

ifces eth0 inet dhcp

edit DNS files

sudo vim /etc/resolv.conf

10.1.10.1

hostname

sudo /bin/hostname name change hostname

remember restart

ping

ping 10.1.10.1 router

ping www.com

control+c stop ping

UFW firewall

sudo ufw status show firewall status

sudo ufw default allow

deny

sudo ufw enable turn on your firewall

disable

sudo ufw allow 80 (allow port 80 come in)

deny 80

sudo ufw delete allow 80 (delete rules)

deny

sudo ufw allow from 202.10.10.11

deny (allow IP address)

sudo ufw allow from 202.80.1.108 to 22 (to this particular port)

时间： 2024-10-17 09:22:06

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