Gathering live information about network devices has changed in recent years. Historically, we used the ipconfig and route commands. These commands have been replaced by the iproute2 package. In this video,explore the use of both the legacy tools as well as their replacements to gather information about our network settings.
- [Instructor] Traditionally, Linux used the…net tools commands including ifconfig, netstat, and route.…These commands have mostly been superseded…by the iproute2 suite of tools, including the IP command.…I find the syntax of the Legacy Tools easy to remember,…but in time they may no longer be available,…so it's important to migrate to iproute.…We will install the net tools package in this course…so we have access to the Legacy commands,…as well as the replacements which are installed by default.…To do so in a terminal type sudo yum -y…install net-tools, and hit Enter.…
Then type in your password.…If the net tools packet is already installed,…it'll let you know.…We'll reference both the Legacy commands…and the replacements, so users with prior experience…can migrate to the new commands easier.…To get IP address and network mask information…using the Legacy tools, we'll type in clear,…and then type in ifconfig.…From this output, we can see the IP version four…and IP version six addresses for all network devices.…
Author
Grant McWilliams
Released
12/6/2017- Gathering network information
- Ensuring connectivity with ping
- Querying DNS servers with dig
- Changing hostname, IP address, and more
- Configuring networking
- Connecting to SSH
- Configuring SSH clients
- Authenticating and restricting access with SSH
- Optimizing SSH for speed
Skill Level Appropriate for all
Duration
Views
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Introduction
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Welcome43s
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What you should know1m 4s
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OS installation9m 50s
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Lab setup6m 1s
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Install Guest Additions4m 22s
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1. Linux Networking Overview
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2. Gather Network Information
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Get system hostname1m 46s
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3. Use Network Tools
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Query DNS servers with dig5m 16s
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4. Change Live Network Configuration
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Change DNS server1m 14s
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5. Change Saved Network Configuration
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Edit system hosts file2m 23s
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6. Secure Shell Overview
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SSH overview1m 34s
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7. Configure SSH
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Configure SSH clients2m 42s
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Configure SSH servers2m 2s
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SSH per user client files4m 10s
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8. SSH Security
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9. SSH Tips and Tricks
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Optimize SSH for speed3m 36s
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Conclusion
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Next steps50s
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Video: Get IP address, subnet mask, and default gateway