How to check the optical module in CentOS 7

Run the following command to view interface configuration and status: show port configuration Add no-refresh to disable automatic screen refresh: show port configuration no-refresh The output includes...

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Mar 08, 2026

How to Check Network Configuration in CentOS

By following these steps, you can check and verify the network configuration for a specific network interface in

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Oct 15, 2025

How to Display System and Hardware Details in CentOS 8

This article will teach you how to get a system or hardware details in CentOS Linux distribution. All the commands

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Jan 03, 2026

How to Check SFP Light Levels Using CLI Commands

To check SFP light levels, use CLI commands such as show interface transceiver details (Cisco), show interfaces

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May 20, 2026

View the Optical Module Status on a Switch through the Command

Once the transceiver and fiber optic cable are plugged in properly in the switch optical module, you should be able to

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Aug 06, 2025

Cisco Command to Check SFP Module Details

Learn Cisco commands like show inventory and show interface transceiver detail to monitor SFP modules, DDM

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Sep 30, 2025

hardware

I need to collect hardware component inventory from physical systems running RHEL (6 and 7) and its derivatives. I

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May 03, 2026

How To View Port Status And Optical Module Information On Extreme

When optical modules are installed on switches, it is necessary to read internal module parameters to monitor

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Jul 18, 2026

How to view the optical module DDM information?

DDM provides detailed information about the optical module''s performance and status, allowing network administrators

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Dec 26, 2025

Linux Find Out Name Of DVD / CD-ROM / Blu-ray Writer Device

Explains how to find out if CDROM / DVD-write / Bly-ray device that was detected by the Linux operating systems

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Feb 07, 2026

Nutanix Support & Insights

Access Nutanix Support & Insights for troubleshooting, maintenance, and hardware details of SFP modules and NICs.

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Oct 23, 2025

View the Optical Module Status on a Switch

Article ID:5508 View the Optical Module Status on a Switch Objective The Cisco Small Business Series Switches

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Oct 25, 2025

Optical Transceiver Manufacturer,How to check optical module

Finally, the networking of Cisco switch needs DAC direct attach cable, AOC active optical cable, optical module and

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Dec 04, 2025

How to display or show information about a Linux Kernel module or

You can load modules automatically during Linux system boot sequence by adding a module name to

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Mar 26, 2026

How to Mount CD/DVD ROM on CentOS / RHEL Linux

Mounting a CD/DVD ROM (or an ISO image) is a common task in Linux systems, whether you need to install software, access data

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Sep 10, 2025

List all available ssl ca certificates

My git client claims error: Peer''s Certificate issuer is not recognized. That means it can not find the corresponding ssl

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Aug 15, 2025

How to see PCI devices info on CentOS and RedHat Enterprise Linux

Explains how to view or see PCI devices info on CentOS 7 and RedHat Enterprise Linux 7 using the lspci and other

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Feb 24, 2026

How to find information about the kernel modules installed on the system

How to see all the kernel modules installed on the system? What are the kernel module utilities in Red Hat Enterprise Linux? Where

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Feb 28, 2026

How to Check CentOS or Rocky Linux Version

A user with sudo privileges. How to Check CentOS or Rocky Linux Version from Command Line Users can obtain

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Sep 21, 2025

How To: Linux Show List Of Network Cards

Explains how to use command line to find and show information about Linux network interface names and list network

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Aug 08, 2025

Finding installed apache module versions in CentOS/RHEL

This returns the installed version and the one available via Yum, however, if I use httpd -M it lists the names like:

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Oct 25, 2025

How to list or check installed Linux kernels using CLI

This page explains how to list or check installed Linux Kernels on various Linux distributions using the various

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Dec 12, 2025

How To View Optical Transceiver Information On Network

Special commands are applied to check transceiver data on switches, and Linux systems also support reading

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Nov 07, 2025

How to check and list installed packages in CentOS Linux

How to check installed packages in CentOS The procedure is as follows to list installed packages: Open the terminal

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Aug 20, 2025

How to check the physical connection of a network card in CentOS 7

Run one of the following commands to check the physical connection status of the network interface: Use the command ip link show.

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Mar 06, 2026

How to check Fibre Channel HBAs in Linux?

If the drivers are not offered by your Linux distribution, you must manually install them and load the modules in the

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Jan 31, 2026

How to Find Version of Installed Packages on CentOS & RedHat

Every now and then, there arises the necessity for Linux administrators to find out what version of a particular package is running on

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Jan 24, 2026

Monitoring Interfaces and Transceivers Using ethtool

The ethtool command enables you to query or control the network driver and hardware settings. It takes the device name (like swp1)

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Nov 06, 2025

How to check SFP Module transceiver, Vendor name & power check

To check the details of an SFP module in Red Hat Enterprise Linux (RHEL), you can use the ethtool command. Use the following

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