Coding Knowledge Center
Networking
dig |
dig <host> - Display DNS records for host.
dig -x <ip> - Display Reverse/PTR DNS records for ip address.
Display DNS records.
hostnamectl |
hostnamectl set-hostname <hostname>
Set hostname for system
netstat |
netstat -nr
Display info about network.
route |
sudo route add default gw <host/ip>
Add default gateway host/ip.
snmpwalk |
snmpwalk -v1 -c <password> <host>
Check if snmp is running on server.
ss |
ss - Show open sockets.
ss -s - Show open sockets statistics.
ss -t4 state estabished - Show tcp4 sockets that are established.
Show open sockets.
tcpdump |
sudo tcpdump -i eth0 udp port 53
Sniff DNS traffic.