Networking

Networking CLI commands Here’s an extensive list of advanced and detailed networking CLI commands, categorized by the systems they are used on: Unix-like systems (including Linux, macOS, and BSD), Windows, and others.

Advanced Networking CLI Commands

Unix-like Systems (Linux, macOS, BSD)

Basic Network Configuration

Display network interfaces:
```
ifconfig
```
(Linux, macOS, BSD)
Display network interfaces (modern replacement):
```
ip a
```
(Linux)
Display routing table:
```
netstat -r
```
(Linux, macOS, BSD)
Display routing table (modern replacement):
```
ip route
```
(Linux)
Display ARP table:
```
arp -a
```
(Linux, macOS, BSD)

Advanced Network Configuration

Assign multiple IP addresses to an interface:

ip addr add IP_ADDRESS1/NETMASK dev INTERFACE
ip addr add IP_ADDRESS2/NETMASK dev INTERFACE

(Linux)

Configure interface with VLAN tagging:

ip link add link INTERFACE name INTERFACE.VLAN_ID type vlan id VLAN_ID
ip addr add IP_ADDRESS/NETMASK dev INTERFACE.VLAN_ID

(Linux)

Set up static routes with metrics:

ip route add DESTINATION_NETWORK/MASK via GATEWAY_IP dev INTERFACE metric METRIC

(Linux)

Configure IP aliases for dynamic IPs:

ip addr add IP_ADDRESS/NETMASK broadcast BROADCAST dev INTERFACE

(Linux)

Add a custom DNS resolver:

echo "nameserver DNS_IP" | sudo tee -a /etc/resolv.conf

(Linux, macOS)

Advanced Network Diagnostics

Perform a traceroute with TCP packets:
```
tcptraceroute HOSTNAME PORT
```
(Linux)
Check for packet loss and jitter:
```
mtr HOSTNAME
```
(Linux, macOS)
Perform a bandwidth test:
```
iperf3 -c SERVER_IP -t TIME
```
(Linux, macOS)
Display detailed network statistics with extended info:
```
netstat -st
```
(Linux, macOS, BSD)
Monitor network traffic in real-time with filters:
```
tcpdump -i INTERFACE -nn -vvv -s0 'tcp port PORT'
```
(Linux, macOS)
Analyze network traffic and create statistics report:
```
wireshark
```
(Linux, macOS)

Advanced Network Security

Configure a firewall with complex rules using iptables:

iptables -A INPUT -p tcp --dport PORT -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A INPUT -p udp --dport PORT -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A INPUT -j DROP

(Linux)

Set up IP filtering rules with nftables:

nft add table ip filter
nft add chain ip filter input { type filter hook input priority 0; }
nft add rule ip filter input ip saddr SOURCE_IP tcp dport PORT accept
nft add rule ip filter input drop

(Linux)

Secure an SSH connection with key-based authentication and specific options:

ssh -i PRIVATE_KEY_FILE -o "StrictHostKeyChecking=yes" -o "UserKnownHostsFile=/path/to/known_hosts" USER@HOSTNAME

(Linux, macOS, BSD)

Configure and manage network security policies with firewalld:

firewall-cmd --zone=public --add-port=PORT/tcp --permanent
firewall-cmd --reload

(Linux)

Implement IPsec VPN tunnels with strongSwan:

ipsec up CONNECTION_NAME
ipsec down CONNECTION_NAME

(Linux)

Advanced Network Monitoring and Management

Set up network traffic shaping with tc:

tc qdisc add dev INTERFACE root handle 1: htb default 12
tc class add dev INTERFACE parent 1: classid 1:1 htb rate 1mbit
tc qdisc add dev INTERFACE parent 1:1 handle 10: pfifo limit 100

(Linux)

Monitor bandwidth usage per interface:
```
vnstat -i INTERFACE
```
(Linux)

Set up network interface bonding for redundancy:

ip link add bond0 type bond
ip link set bond0 up
ip link set INTERFACE1 master bond0
ip link set INTERFACE2 master bond0

(Linux)

Perform network diagnostics with nmap:
```
nmap -sS -p PORTS HOSTNAME
nmap -O HOSTNAME
```
(Linux, macOS)
Analyze network paths and identify latency issues with mtr:
```
mtr -r -c 100 HOSTNAME
```
(Linux, macOS)

Advanced Network Configuration and Troubleshooting

Configure advanced routing with ip route:

ip route add DESTINATION_NETWORK/MASK via GATEWAY_IP dev INTERFACE table 100
ip route add default via GATEWAY_IP table 100

(Linux)

Use traceroute with different protocols and settings:
```
traceroute -T HOSTNAME
traceroute -U HOSTNAME
```
(Linux, macOS)
Display detailed interface statistics and errors:
```
ethtool -S INTERFACE
```
(Linux)
Check for packet drops and errors on interfaces:
```
ifstat INTERFACE
```
(Linux)

Monitor network traffic with detailed tcpdump filters:

tcpdump -i INTERFACE -nn 'tcp[tcpflags] & (tcp-syn|tcp-ack) != 0'

(Linux, macOS)

Advanced Network Security and Penetration Testing

Perform network scans and vulnerability assessments:
```
nmap -A HOSTNAME
nmap --script vuln HOSTNAME
```
(Linux, macOS)
Use netcat for network exploration and diagnostics:
```
nc -l -p PORT
nc -v HOSTNAME PORT
```
(Linux, macOS)
Configure and monitor SNMP with snmpwalk:
```
snmpwalk -v 2c -c COMMUNITY_STRING HOSTNAME
```
(Linux, macOS)
Use tcpflow to capture and analyze network traffic flows:
```
tcpflow -i INTERFACE
```
(Linux, macOS)

Windows

Basic Network Configuration

Display network interfaces:
```
ipconfig /all
```
Display ARP table:
```
arp -a
```
Display routing table:
```
route print
```

Advanced Network Configuration

Add a static route:

route add DESTINATION_NETWORK MASK NETMASK GATEWAY_IP

Delete a static route:
```
route delete DESTINATION_NETWORK
```

Configure DNS settings:

netsh interface ip set dns name="INTERFACE_NAME" static DNS_IP

Advanced Network Diagnostics

Perform a traceroute:
```
tracert HOSTNAME
```
Ping with a specific packet size:
```
ping HOSTNAME -l SIZE
```
Check network performance:
```
pathping HOSTNAME
```

Advanced Network Security

Configure Windows Firewall rules:

netsh advfirewall firewall add rule name="RuleName" protocol=TCP dir=in localport=PORT action=allow

List all active connections and listening ports:
```
netstat -ano
```
Kill a process by PID:
```
taskkill /PID PID_NUMBER /F
```

Advanced Network Monitoring and Management

View network statistics:
```
netsh interface ipv4 show stats
```
Monitor network usage:
```
perfmon
```
Configure VPN settings:
```
rasdial CONNECTION
```

Configure VPN settings:

rasdial CONNECTION_NAME USERNAME PASSWORD

Check current network connections and their state:
```
netstat -b
```
List all network adapters and their configuration:
```
getmac /v /fo list
```
Display detailed TCP connections and listening ports:
```
netstat -anob
```
Monitor network usage over time with Performance Monitor:
```
perfmon /report
```
Display IP configuration for all adapters:
```
ipconfig /all
```
Release and renew DHCP leases:
```
ipconfig /release
ipconfig /renew
```

Advanced Network Security and Penetration Testing

Perform network scan and discover services using nmap:
```
nmap -A -T4 HOSTNAME
```
Use netcat for port scanning and connections:
```
nc -zv HOSTNAME PORT
```
Test network ports and connectivity with telnet:
```
telnet HOSTNAME PORT
```
Perform vulnerability scans with nmap scripts:
```
nmap --script vuln HOSTNAME
```

Network Management on Specific Systems

AWS CLI

List all EC2 instances:
```
aws ec2 describe-instances
```

Describe a specific instance:

aws ec2 describe-instances --instance-ids INSTANCE_ID

Describe security groups:
```
aws ec2 describe-security-groups
```
List all VPCs:
```
aws ec2 describe-vpcs
```

Get VPC peering connections:

aws ec2 describe-vpc-peering-connections

View CloudWatch metrics:
```
aws cloudwatch list-metrics
```
Monitor RDS instances:
```
aws rds describe-db-instances
```

Azure CLI

List all virtual machines:
```
az vm list --output table
```

Show details of a specific VM:

az vm show --name VM_NAME --resource-group RESOURCE_GROUP

List all network interfaces:
```
az network nic list --output table
```

Show details of a specific network interface:

az network nic show --name NIC_NAME --resource-group RESOURCE_GROUP

List all virtual networks:
```
az network vnet list --output table
```

Show details of a specific virtual network:

az network vnet show --name VNET_NAME --resource-group RESOURCE_GROUP

View network security groups:
```
az network nsg list --output table
```

GCP CLI

List all Compute Engine instances:
```
gcloud compute instances list
```

Describe a specific Compute Engine instance:

gcloud compute instances describe INSTANCE_NAME

List all network interfaces:
```
gcloud compute network-interfaces list
```

Describe a specific network interface:

gcloud compute network-interfaces describe INTERFACE_NAME

List all VPC networks:
```
gcloud compute networks list
```

Describe a specific VPC network:

gcloud compute networks describe NETWORK_NAME

View firewall rules:
```
gcloud compute firewall-rules list
```

Android Terminal Commands

Display network interfaces:
```
ifconfig
```
Show detailed IP address information:
```
ip -f inet addr
```
Test network connectivity with ping:
```
ping HOSTNAME
```
Check for open ports with netcat:
```
nc -zv HOSTNAME PORT
```
Display routing table:
```
route -n
```
Perform a traceroute:
```
traceroute HOSTNAME
```
View network statistics:
```
netstat -s
```

macOS Specific Commands

List all network services:
```
networksetup -listallnetworkservices
```
Get details for a specific network service:
```
networksetup -getinfo SERVICE_NAME
```

Change DNS settings:

networksetup -setdnsservers SERVICE_NAME DNS_IP

List all wireless networks:

/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -s

Connect to a wireless network:

networksetup -setairportnetwork INTERFACE SSID PASSWORD

AIX CLI Commands

List all network interfaces:
```
ifconfig -a
```
Show detailed interface configuration:
```
netstat -in
```
Display routing table:
```
netstat -rn
```
Check ARP cache:
```
arp -a
```

Set a static route:

route add net DESTINATION_NETWORK netmask NETMASK gateway GATEWAY_IP

Configure network interface:

ifconfig INTERFACE IP_ADDRESS netmask NETMASK

FreeBSD CLI Commands

Display network interfaces:
```
ifconfig
```
Show detailed network configuration:
```
netstat -r
```
Display ARP table:
```
arp -a
```

Add a static route:

route add -net DESTINATION_NETWORK netmask NETMASK gateway GATEWAY_IP

Configure network interface:

ifconfig INTERFACE inet IP_ADDRESS netmask NETMASK

OpenBSD CLI Commands

List network interfaces:
```
ifconfig
```
Display routing table:
```
netstat -rn
```
Show ARP table:
```
arp -a
```

Add a static route:

route add DESTINATION_NETWORK/NETMASK GATEWAY_IP

Configure network interface:

ifconfig INTERFACE inet IP_ADDRESS netmask NETMASK

This comprehensive list covers advanced networking commands across various systems, providing extensive options for network configuration, diagnostics, security, and management.

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Networking

Advanced Networking CLI Commands

Unix-like Systems (Linux, macOS, BSD)

Basic Network Configuration

Advanced Network Configuration

Advanced Network Diagnostics

Advanced Network Security

Advanced Network Monitoring and Management

Advanced Network Configuration and Troubleshooting

Advanced Network Security and Penetration Testing

Windows

Basic Network Configuration

Advanced Network Configuration

Advanced Network Diagnostics

Advanced Network Security

Advanced Network Monitoring and Management

Advanced Network Security and Penetration Testing

Network Management on Specific Systems

AWS CLI

Azure CLI

GCP CLI

Android Terminal Commands

macOS Specific Commands

AIX CLI Commands

FreeBSD CLI Commands

OpenBSD CLI Commands

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Networking

Advanced Networking CLI Commands

Unix-like Systems (Linux, macOS, BSD)

Basic Network Configuration

Advanced Network Configuration

Advanced Network Diagnostics

Advanced Network Security

Advanced Network Monitoring and Management

Advanced Network Configuration and Troubleshooting

Advanced Network Security and Penetration Testing

Windows

Basic Network Configuration

Advanced Network Configuration

Advanced Network Diagnostics

Advanced Network Security

Advanced Network Monitoring and Management

Advanced Network Security and Penetration Testing

Network Management on Specific Systems

AWS CLI

Azure CLI

GCP CLI

Android Terminal Commands

macOS Specific Commands

AIX CLI Commands

FreeBSD CLI Commands

OpenBSD CLI Commands

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