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How-to articles, industry news, opinions, analysis, and career advice for network engineers and anyone else who likes to keep up with the packet zeitgeist.
RSSThe following post is by PingPlotter. We thank PingPlotter for being a sponsor. An internet connection monitoring tool, PingPlotter constantly tests the connection from the end-user’s perspective, provides visual proof…
READ MOREED, HIS TLS COURSE, AND THE FREE OPENSSL CHEATSHEET Twitter @ed_pracnet https://practicalnetworking.net Practical TLS course: https://pracnet.net/tls OpenSSL Cheatsheet: https://pracnet.net/openssl FILES FOR THE CERT/KEY MATCHING EXERCISE: ZIP VERSION: packetpushers-pracnet-openssl.zip https://ln5.sync.com/dl/1f1f63d90/kqztwkp9-hkcz3yvq-tuzx79ke-aewxgaip TAR.GZ…
READ MOREWhen parsing Apache web server logs on Linux, I find it interesting to monitor access requests resulting in HTTP status codes other than 200s. An HTTP status code in the…
READ MOREIf you’re using CLI tool curl to retrieve data from a remote API, you might send forth a command like so. curl -H "Authorization: Bearer access_token_goes_here" \ https://api.provider.com/thing/you_want/index.json That results…
READ MOREYour non-technical boss doesn't pop by your desk and ask you why there are excessive OutDiscards accumulating on Et4/0/36. You get asked why the network is slow, or why the…
READ MORESo last week I was looking at some things around Reliability and I realized how big the Reliability Engineering field is. Then I thought why not share it with others…
READ MOREARP- Address resolution protocol, as name suggests it used to resolve IP address to MAC-address used by data link protocol. As network engineer , its default that you should be aware…
READ MOREIn continuation of Part1, Part 2 of useful show commands will be focusing little bit more related to troubleshooting tools available in JUNOS local on the router. In any case,…
READ MOREWant to be a better engineer? Learn to troubleshoot Since I have been working in IT for many years there are a few traits that generally separate a good engineer…
READ MOREFor over 30 years I’ve been in the playing in the “world of IT” and wow has that world changed a great deal in those years. But through all that…
READ MOREThroughput Throughput is the rate at which data is traversing a link. For example, take a look at the virtual router output below. The throughput rate is 643Kbps in each…
READ MOREFor some time I have had issues while doing captures such as finding the elusive “spare laptop” you can use, multiple trips out to the site to pick up the…
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