Today on HakTip we’re learning about the terminal environment and customizations ——————————- Shop: http://www.hakshop.com Support: http://www.patreon.com/threatwire Subscribe: http://www.youtube.com/hak5 Our Site: http://www.hak5.org Contact Us: http://www.twitter.com/hak5 —————————— Commands you’ll need to know: printenv printenv USER set alias Learn about the Alias command from this episode of HakTip! – https://youtu.be/4-IngQNj0rQ?list=PLW5y1tjAOzI2ZYTlMdGzCV8AJuoqW5lKB ls -a nano .bashrc umask 0002 export HISTCONTROL=ignoredups […]

Read more

Did we like Pcapr, the online social networking site for packet captures? Watch this episode of HakTip to find out! http://www.pcapr.net/home ——————————- Shop: http://www.hakshop.com Support: http://www.patreon.com/threatwire Subscribe: http://www.youtube.com/hak5 Our Site: http://www.hak5.org Contact Us: http://www.twitter.com/hak5 ——————————

Read more

Today on HakTip we’re checking out a tool specifically made for sharing and collaborating with pcap files online. ——————————- Shop: http://www.hakshop.com Support: http://www.patreon.com/threatwire Subscribe: http://www.youtube.com/hak5 Our Site: http://www.hak5.org Contact Us: http://www.twitter.com/hak5 —————————— http://hat.t2t2.eu to vote for Hak5! https://www.cloudshark.org/ CloudShark is best for collaboration and sharing of packet capture files from Wireshark. But is it a […]

Read more

Today on HakTip we’re using some popular commands in TCPDump, PLUS: Filters! ——————————- Shop: http://www.hakshop.com Support: http://www.patreon.com/threatwire Subscribe: http://www.youtube.com/hak5 Our Site: http://www.hak5.wpengine.com Contact Us: http://www.twitter.com/hak5 —————————— http://www.tcpdump.org/ http://www.hashtoolkit.com http://alumni.cs.ucr.edu/~marios/ethereal-tcpdump.pdf

Read more

Today on HakTip we’re setting up TCPDump in Linux! ——————————- Shop: http://www.hakshop.com Support: http://www.patreon.com/threatwire Subscribe: http://www.youtube.com/hak5 Our Site: http://www.hak5.wpengine.com Contact Us: http://www.twitter.com/hak5 —————————— http://www.tcpdump.org/

Read more

——————————- Shop: http://www.hakshop.com Support: http://www.patreon.com/threatwire Subscribe: http://www.youtube.com/hak5 Our Site: http://www.hak5.wpengine.com Contact Us: http://www.twitter.com/hak5 —————————— Today on Haktip we’re checking out your feedback and tips for Wireshark. Øyvind Nesland writes: I have a tip for how I’ve used Wireshark in my job as a network admin. We had a problem with IP-phones and our DHCP-server, and […]

Read more

——————————- Shop: http://www.hakshop.com Support: http://www.patreon.com/threatwire Subscribe: http://www.youtube.com/hak5 Our Site: http://www.hak5.wpengine.com Contact Us: http://www.twitter.com/hak5 —————————— Today we’re checking out Wireshark and wireless packet captures. Links: http://wiki.wireshark.org/Wi-Fi https://www.wireshark.org/docs/dfref/w/wlan.html https://www.wireshark.org/docs/dfref/w/wlan_mgt.html https://www.wireshark.org/docs/dfref/w/wlan_aggregate.html http://www.chrissanders.org/captures/ http://www.win10pcap.org/download/

Read more

Shannon demos a wireless network packet header in Wireshark and explains the 6 modes of wireless in this week’s episode of HakTip. Download HD | Download MP4 Wireless works a bit differently than wired networks. The physical layer of a wireless spectrum has 11 channels in the US. Your network data and traffic will show […]

Read more

This week on HakTip, Shannon pinpoints an exploitation using Wireshark. Download HD | Download MP4 Working on the shoulders of last week’s episode, this week we’ll discuss what exploits look like in Wireshark. The example I’m sharing is from Practical Packet Analysis, a book by Chris Sanders about Wireshark. Our example packet shows what happens […]

Read more

Today on HakTip, Shannon explains how to view an attack on your network and how to discover your vulnerable network ports. Download HD | Download MP4 If you are working at a business, you may find that an attacker wants to get into your network. The attacker would start by collecting publicly available information- like […]

Read more

Today on HakTip, Shannon explains high and low latency, and how to determine which machine is causing the latency via Wireshark. Download HD | Download MP4 We have discussed high latency a bit in my previous HakTip, but I wanted to go into it with some more detail. As you look at packets in a […]

Read more

Today on HakTip, Shannon explains window size in packets and how TCP controls flow of data. Download HD | Download MP4 When sending TCP packets you can run into problems in which the outcome would be retransmissions and duplicates. There is a way to keep packet loss from happening too. This is called a ‘sliding […]

Read more

Today on HakTip, Shannon explains how to fix a network or connection problem based on the information you receive from Wireshark. Download HD | Download MP4 How to tell if a website is down via Wireshark: This is a pretty common problem, and sometimes the issue can be within your network, sometimes outside it. If […]

Read more

Today on HakTip, Shannon explains TCP Retransmissions and TCP Duplicate Acknowledgments in reference to Wireshark. Download HD | Download MP4 Oftentimes you’ll find yourself faced with a really slow network. You may have trouble connecting or a site takes WAY too long to load. When a network is running slow, the communication has something called […]

Read more

Today on HakTip, Shannon tests HipChat via Wireshark to see if her data is sent encrypted or plain text. Download HD | Download MP4 HipChat is encrypted via SSL so you can work with your team on your network, and I want to make sure that information is for sure secure. In my case, I […]

Read more

Today on HakTip, Shannon explains how to tell in Wireshark if a site is transmitting your username and password in plain text when you log in. Download HD | Download MP4 When I log into twitter, everything is supposed to go through SSL HTTPS encryption. If this is so, then I shouldn’t see any plain […]

Read more

Today on HakTip, Shannon explains Hypertext Transfer Protocol and packet headers in Wireshark. Download HD  |   Download MP4 HTTP stands for Hypertext Transfer Protocol. This is another common upper layer protocol that you’ll run into from time to time in Wireshark. Specifically, HTTP can be found in Layer 7 of the OSI model. HTTP […]

Read more

Today on HakTip, Shannon explains the DNS protocol, or Domain Name System, and how it pertains to use in Wireshark. Download HD | Download MP4 DNS (Domain Name System) is the reason why when you type in a website like google.com, it goes to their IP address. This way you don’t have to memorize a […]

Read more

Today on HakTip, Shannon explains DHCP and how it relates to Wireshark. Download HD | Download MP4 DCHP stands for Dynamic Host Configuration Protocol, and it’s a common upper-layer protocol. DHCP makes it super easy for devices to get an IP address automatically. DHCP’s goal is to assign address to clients during this thing called […]

Read more

Today on HakTip, Shannon Morse explains the User Datagram Protocol and the Internet Control Message Protocol with Wireshark. Download HD  |   Download MP4 UDP stands for User Datagram Protocol. This is another layer 4 protocol, commonly called a ‘connectionless protocol’, that is used on lots of modern networks to make the transmission of data […]

Read more

This week on HakTip, Shannon Morse explains the Transmission Control Protocol (or TCP) within Wireshark. Download HD | Download MP4 Today we are breaking down the Transmission Control Protocol or TCP for short, which runs in Layer 4 of the OSI model and runs on top of IP. TCP basically makes sure your data gets […]

Read more

This week on HakTip Shannon Morse discusses the Internet Protocol, or IP for short. Download HD  |   Download MP4 While ARP is used with MAC addresses to send data, IP handles most of the traffic for internetwork communication from one device to another. The Internet Protocol is found on Layer 3 of the OSI […]

Read more

Today on HakTip, Shannon Morse breaks down ARP packets – how to distinguish an ARP packet in Wireshark and what each part of the packet means. Download HD  |   Download MP4 Today we’re checking out Wireshark and Address Resolution Protocol. Today we’re going to delve into understanding normal traffic patterns with TCP/IP and ARP […]

Read more

On today’s HakTip, Shannon defines how Wireshark interprets name resolutions, and how to view flow graphs. Download HD  |   Download MP4   Today we’re checking out Wireshark and Name Resolutions! Let’s talk about name resolutions! This is used in several programs to convert one address into another, such as changing a computer’s MAC address […]

Read more

On today’s HakTip, Shannon Morse discusses the Display Filter Box and several options you have for saving filters within Wireshark. Download HD  |   Download MP4   One question I got from last week’s episode was “What happens to the rest of your packets when you use the filter box?”. This box is for Display […]

Read more

On this week’s episode of HakTip, Shannon Morse gives several expression examples that you can use when working within the Display Filter Box. Download HD  |   Download MP4   Today is all about expression examples. It’s a little weird to work within the boundaries of this little text box, and what it’ll accept. Throughout […]

Read more

On this week’s episode of HakTip, Shannon Morse describes TCP Streams and how to decode packets in several formats. Download HD  |   Download MP4 While running a packet capture in Wireshark, you may find that although the packets are all in one nice long list, some of them match up with others. An ex: […]

Read more

Today on HakTip, Shannon Morse describes two useful features in Wireshark: IO Graphs and Expert Info. Download HD  |   Download MP4 Today we’re checking out Wireshark – IO Graphs and Expert Info. One handy part of Wireshark is being able to see all the data you’ve captured in useful ways, such as a graph. […]

Read more