Here are some of the TCP/IP commands and their functions described briefly. Some of the commands are used to configure and diagnose your network. Keep in mind while writing from the command swift you can only write one command on each line and press the “Enter” button after each command to implement it. Arp, ipconfig, nslookup, ping, etc.| IPConfig.in – What is My IP Address?
It’s difficult to describe in one post what thousands of books have been written about in a thousand pages, but today we’ll try to quickly review the basics of how hosts communicate on a network. First, let’s talk about the OSI and TCP/IP models, then about packet structure and connection establishment, and finally, we’ll… Read More » The post TCP/IP: OSI and TCP/IP models, TCP packets, Linux sockets and ports first appeared on RTFM: Linux, DevOps, and system administration.| RTFM: Linux, DevOps, and system administration
Sample page from Mongoose Web server Mongoose TCP/IP is comprehensive easy-to-use TCP/IP software stack, produced by Cesanta Software Ltd. In its simplest form, you just include 2 library files in …| Lean2
| Anonymous Proxies – Surfing Anonymously
If you've played with networking at all, you should be familiar with 127.0.0.1 being localhost. If you look closely at the network settings, you'll see that this is on a loopback device, and it's configured as a /8 network, not just that one IP address. That means any IP address in the range of 127.0.0.0 through 127.255.255.255 goes to the loopback device. Typically your hosts file only uses one of those addresses, namely the aforementioned localhost.| Mad Man with a Compiler
If you use BIND as your domain name server, it shows by default the installed version. There is a possibility to suppress this bad behaviour| www.unixfu.ch
Understand why WebSphere sometimes seems to have problems reopening TCP ports after a restart and what to do about it.| Andreas Veithen's blog
This article gives an in-depth description how TCP backlog works in Linux and in particular what happens when the accept queue is full. Includes references to the relevant kernel sources.| Andreas Veithen's blog
Learn how to correctly parse host parameters passed on the command line or read from a configuration file such that IPv6 addresses with zone IDs are recognized.| Andreas Veithen's blog
This article presents a tool to determine the socket options for TCP sockets created by processes on Linux.| Andreas Veithen's blog
Using built in tools on the Mac gives you a list with all applications listening on network ports.| www.unixfu.ch
Telnet was used for a very long time to debug network connections. Since telnet is not available on Apple anymore, netcat is a true alternative| www.unixfu.ch
