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There are a couple of ways to read a packet capture .cap file from the command line. I’ll show you how! tcpdump The tack r filename option for tcpdump will display a capture file onto . . . → Read More: How to Read a Packet Capture .cap File from Command Line To ignore any ssl certificate warnings with curl, use the tack k option. Here is an example: $ curl -I -k https://scottlinux.com $ curl -I -k https://scottlinux.com HTTP/1.1 200 OK Date: Tue, 14 Feb 2012 20:00:03 GMT . . . → Read More: cURL Ignore SSL Certificate Warnings This account is currently not available If you get this message attempting to ssh in or su’ing as another user, there is no valid shell set for this user. You can quickly inspect this by looking at . . . → Read More: This account is currently not available Q. How can I access my computer or family’s computer remotely without having to open up ports in the firewall? A. Using a [free] third party app is the solution Here are a few free* solutions to . . . → Read More: Remote Access Without Opening Ports
A common question I hear is ‘Why are there so many different versions of Linux?‘ Especially when there is simply ‘Windows’, or ‘OS X’, it seems logical that there could be a single ‘Linux’, but for various . . . → Read More: Which Linux to Use . . . → Read More: Install aircrack-ng on Debian Linux Killing zombie processes in Linux or Unix cannot be done, as they are already dead. :) Often the only solution is to restart your machine. However, it is sometimes possible to kill or restart the parent process . . . → Read More: How to Kill Zombie Processes Ubuntu Server 12.04 will be released on 26 April 2012. Ubuntu 12.04 is supported with security updates until 2017 which makes Ubuntu LTS an attractive choice for use as a server. At the time of this blog . . . → Read More: What’s New in Ubuntu Server 12.04 LTS ssh has a built in debug mode from the client side to provide information in troubleshooting a connection. This will provide information such as mismatch in client/server configuration options, key conflicts, permission problems, and various other useful . . . → Read More: Troubleshoot ssh Authentication Failure netcat can be used to quickly grab a service banner, as well as trusty nmap. I’ll show you some tips! The netcat command is simply: $ nc [target] [port] Add tack v to get more verbosity. . . . → Read More: Banner Grabs with netcat and nmap The particular way an operating system or device sends and receives TCP packets provides a unique fingerprint. TCP header information such as the window size, TTL, overall SYN packet size, MSS, MTU and so forth can help . . . → Read More: TCP/OS Fingerprinting Tools – p0f and nmap In Linux, the command gpasswd can be used to add or remove users from a group. I’ll show you how! To add a user to a group, use tack a: $ sudo gpasswd -a user group The . . . → Read More: Add User to Group in Linux WPScan is a nifty WordPress vulnerability scanner. It can do things such as scan for installed plugins and provide vulnerability information based on results. It is part of Backtrack, which is handy as well! Here’s how . . . → Read More: WPScan WordPress Vulnerability Scanner Instead of pinging the broadcast which may or may not work for various reasons, use namp to identify MAC addresses and ips of computers or devices on your LAN. Here is how it works! The nmap option . . . → Read More: Use nmap to Identify MAC and IP of Machines on LAN |
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