getpeercon_raw - Linux
Overview
getpeercon_raw retrieves the current raw peer connection state for a specific DIF, net device, or object. It is a powerful tool for diagnosing and troubleshooting network connectivity issues.
Syntax
getpeercon_raw [-h] [-D] [-S] [-a] [-I ADDRESS] [-P PORT] [DIF|DEV|OBJ]
Options/Flags
-h
: Display help information.-D
: Display DIF name instead of IF name.-S
: Display DIF seq name instead of DIF name.-a
: Display all addresses on a DIF/DEV/OBJ.-I ADDRESS
: Display peer connection state for a specific address.-P PORT
: Display peer connection state for a specific port.
Examples
Display raw peer connection state for all interfaces:
getpeercon_raw -a
Display raw peer connection state for a specific DIF:
getpeercon_raw eth0
Display raw peer connection state for a specific address on a DIF:
getpeercon_raw -I 192.168.1.10 eth0
Display raw peer connection state for a specific port on a DIF:
getpeercon_raw -P 80 eth0
Common Issues
- Invalid DIF/DEV/OBJ: Ensure that the specified DIF, net device, or object exists.
- Missing address or port: When using
-I
or-P
, ensure that the specified address or port is valid. - No peer connection: If no peer connection is found, check network connectivity and firewall settings.
Integration
Combine with iproute2 commands: Use getpeercon_raw output with iproute2
commands like ip
and ss
for further analysis.
Integration with scripts: Incorporate getpeercon_raw into scripts for automated network monitoring and troubleshooting.
Related Commands
- ip: Manipulate and display IP addresses and routes.
- ss: List socket and network connections.
- netstat: Display network connections and statistics.
License
GPLv2