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Wireshark Tutorial // Fixing SLOW APPLICATIONS 

Chris Greer
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In a large trace file with lots of connections, how can you find the slow ones? I'd like to show you a trick I use when digging for pain points in the trace. Follow along by downloading the trace below!
Click here: www.cloudshark.org/captures/4...
Like/Share/Subscribe for more Wireshark content.
== More On-Demand Training from Chris ==
▶Getting Started with Wireshark - bit.ly/udemywireshark
▶Getting Started with Nmap - bit.ly/udemynmap
== Live Wireshark Training ==
▶TCP/IP Deep Dive Analysis with Wireshark - bit.ly/virtualwireshark
== Private Wireshark Training ==
Let's get in touch - packetpioneer.com/product/pri...

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13 дек 2020

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Комментарии : 106   
@donniereidjr
@donniereidjr 3 года назад
Your Foundational TCP Analysis With Wireshark course on Pluralsight is amazing sir!
@ChrisGreer
@ChrisGreer 3 года назад
Thanks for the comment Donnie! If anyone else wants to check it out go to bit.ly/wiresharktcp
@punggukbulan8674
@punggukbulan8674 2 года назад
I have watched 90% video created by chris in pluralsight..mastering tcp, visualize tcp, etc..all are amazing..:), and now i am waiting his video about analysis voice/video over apps (whatsapp,etc) in pluralsight...great job chris.!!
@PeterTeehan
@PeterTeehan 2 года назад
@@punggukbulan8674 or Teams? Hummm
@ranjanadissanayaka5390
@ranjanadissanayaka5390 Год назад
amazing video.thanks Chris.
@EzhegAB
@EzhegAB 3 года назад
Thank you for the video! Everything is clearly explained
@ToddMagers
@ToddMagers 3 года назад
Great video Chris!
@MiDeubi
@MiDeubi 3 года назад
Very nice !!! Thanks for sharing ! Awesomely
@Rafael-zc6xy
@Rafael-zc6xy 2 года назад
Your channel has a lot of very useful information. I'm watching all the playlists! Thank you for sharing your knowledge with us, Chirs!
@ChrisGreer
@ChrisGreer 2 года назад
Thank you! Like, please share on social media, and by all means subscribe!
@catbuddycatrescue2081
@catbuddycatrescue2081 5 месяцев назад
Thank you never been able to work out how to do a latency test with W/shark - really helped clear up a lot my confusion.
@hcetc
@hcetc 3 года назад
I love these videos Chris! Thanks man. And keep up the great work.
@ChrisGreer
@ChrisGreer 3 года назад
Glad you like them! Thanks @Samuel.
@amirahmed1404
@amirahmed1404 3 года назад
You’re the MAN, Chris. Thanks a lot for these great tutorials.
@ChrisGreer
@ChrisGreer 3 года назад
Thanks for the comment Amir! I appreciate the positive feedback.
@user-fg6jw5jp5y
@user-fg6jw5jp5y 4 месяца назад
Very useful video, highly appreciated! You've just saved my job! :)
@tonichard6564
@tonichard6564 3 года назад
Wow this is great! This will help so much at work! Thank you for sharing your knowledge!
@ChrisGreer
@ChrisGreer 3 года назад
You're so welcome! Thanks Toni.
@emagenstudios
@emagenstudios 3 года назад
Love it. This helps a lot. Thanks. Keep the videos coming.
@ChrisGreer
@ChrisGreer 3 года назад
Thanks, will do!
@abylaurancecherian4930
@abylaurancecherian4930 3 года назад
Thanks Chris. Wonderful tip :)
@ChrisGreer
@ChrisGreer 3 года назад
Thanks for the comment Aby!
@shervinhariri6821
@shervinhariri6821 Год назад
Thanks for your awesome explain
@skeetabomb
@skeetabomb 5 месяцев назад
Great stuff
@punggukbulan8674
@punggukbulan8674 2 года назад
Thanks Chris...wish u all the best
@ChrisGreer
@ChrisGreer 2 года назад
Thank you!
@Black_Swan68761
@Black_Swan68761 2 года назад
You are Amazing, Chris!
@ChrisGreer
@ChrisGreer 2 года назад
Wow, thank you!
@plautod
@plautod 2 года назад
Great video. I'm sharing this with my network team!
@ChrisGreer
@ChrisGreer 2 года назад
Please do! thanks!
@maitongm
@maitongm 2 года назад
Great video
@JohnnyLeuthard
@JohnnyLeuthard Год назад
I love your videos. Wireshark has always been an overwhelming application. It can feel like you are drinking from a. firehose and there is so much chatter. After just watching a couple videos it has already boosted my confidence and given me some skills to filter out the noise to find the info I want. I will continue on with the rest and i am also working through some of the Pluralsight classes you authored. The best part of these youtube videos, at least for me, is it's broken up into small bite size tasks. If i want to know how to do a particular task. Like this video i can find the one I want and quickly figure out how to get what knowledge I need and want.
@ChrisGreer
@ChrisGreer Год назад
Wow thanks for the feedback! I will keep up the content. Thank you.
@nms9352
@nms9352 3 года назад
Chris! - Always get super excited whenever you upload a new video, this channel is the sole reason I got into Wireshark - you got a way to make it super fun and presentation is top notch! -- Really appreciate all the content and work put into it!
@ChrisGreer
@ChrisGreer 3 года назад
Wow, thanks for the comment! Also for the positive vibes. Helps me think of new content to get out there for you guys. Thank you I appreciate it.
@rajesh_shrestha
@rajesh_shrestha Год назад
same here always waiting for new videos to come out, so that i can learn new things. like this one :)
@senthilchily
@senthilchily 11 месяцев назад
nice video love it
@patmarek1222
@patmarek1222 Год назад
Ah man less than 9 minutes and so much golden knowledge on how to approach this. Actually watched twice to fully understand cause I'm sleepy af this morning :D Thanks, I'm definitely subscribing!
@ChrisGreer
@ChrisGreer Год назад
Thanks and great to have you here!
@realstevelknievel
@realstevelknievel 3 месяца назад
You're the GOAT man! Thanks for all your content!
@ChrisGreer
@ChrisGreer 3 месяца назад
Thank you for the kind comment!
@johnp1
@johnp1 3 года назад
Very good tip!
@ChrisGreer
@ChrisGreer 3 года назад
Glad you think so Duc!
@Be-Kind-Be-Gentle-Be-Just
@Be-Kind-Be-Gentle-Be-Just 10 месяцев назад
Thank you. You have earned my subscription and like. Well done
@ChrisGreer
@ChrisGreer 10 месяцев назад
Awesome, thank you!
@koushikkumarboah2745
@koushikkumarboah2745 3 года назад
Amazing content!
@ChrisGreer
@ChrisGreer 3 года назад
Appreciate it!
@B-Billy
@B-Billy 3 года назад
Hussein Nasser recommended your channel.
@ChrisGreer
@ChrisGreer 3 года назад
Welcome Mehraj - great to have you. Hussein is awesome.
@ericksonjosephsantos1964
@ericksonjosephsantos1964 3 года назад
great stuff!
@ChrisGreer
@ChrisGreer 3 года назад
Thanks!
@brahmadude8955
@brahmadude8955 3 года назад
Master is back😘❤️🙏
@ChrisGreer
@ChrisGreer 3 года назад
I'll keep them coming! Thanks for the comment.
@mohdkhairulezmicheseman2435
@mohdkhairulezmicheseman2435 3 года назад
im always watching your video when bell is pop up..this time not skipped advr
@ChrisGreer
@ChrisGreer 3 года назад
Hmm, not sure what the problem is. Can you give more detail?
@hackebeil20
@hackebeil20 3 года назад
Ha! 30 seconds in and already learned something! I usually filter out one conversation first and then check on the deltas but this way around can help if you don't know where the baddies are at.
@ChrisGreer
@ChrisGreer 3 года назад
nice! yeah I used to do that too until I found this little trick. Now no need to filter on those conversations.
@Joallyson
@Joallyson 3 года назад
Love this Chris, you explain very well! It's gonna help me a lot on my job. I just want know where did you get the 163ms? Thanks
@overtheedge107
@overtheedge107 9 месяцев назад
It comes from the delta column. Time displayed is in seconds. .163 seconds equates to 163 milli seconds.
@alextimmermans5122
@alextimmermans5122 3 года назад
Thank you , Chris , for yet another informative video. You got some more ? ;-)
@ChrisGreer
@ChrisGreer 3 года назад
More to come! Stay tuned @Alex!
@ejeangilles
@ejeangilles 3 года назад
Awesome as usual! Can you also do a video on decrypting traffic in trace file.
@ChrisGreer
@ChrisGreer 3 года назад
Hey Edwin - yes, I have had that one on the docket for a little while. I will get it done soon!
@felipeoliveira895
@felipeoliveira895 3 года назад
Amazing videos and courses! Do you plan to record any sessions or courses on BBR? That would be awesome! Thank you so much!
@ChrisGreer
@ChrisGreer 3 года назад
Hello Felipe, thanks for the comment! I don't plan on any BBR specific content for now. Just because it is such a niche topic - however I do talk about it a bit more in my Virtual Wireshark course. Links in description.
@yohanmeier6061
@yohanmeier6061 3 года назад
Hello Chris is good technical, i use technical last week for timeout application, i difficult tow sessions stream, one session client with load-balancer and second session lb with backend server. Very practice technical ;-)
@ChrisGreer
@ChrisGreer 3 года назад
Awesome Yohan! Keep up the practice.
@yohanmeier6061
@yohanmeier6061 3 года назад
@@ChrisGreer thank you Chris, I work on wireshark every day my job , it's a real passion, because it allows you to learn a lot of things. it's a shame that in France computer studies do not focus on the analysis of network traces with wireshark
@rohityadav992
@rohityadav992 3 года назад
After long time Mr. Packet 😀 again great one👍
@ChrisGreer
@ChrisGreer 3 года назад
I'm back Rohit! Thanks for the comment.
@rohityadav992
@rohityadav992 3 года назад
@@ChrisGreer indeed your content is best in deep analysis...keep it up 🤝
@user-ql1uh8ph8m
@user-ql1uh8ph8m 2 года назад
Hello chris you know about NAGL algo'?
@Comedypandemic
@Comedypandemic 2 года назад
David is the reason I am here
@ChrisGreer
@ChrisGreer 2 года назад
Welcome!
@buzooliibrahim8382
@buzooliibrahim8382 Месяц назад
how do you get the delta column plz explain or provide if u have any related video thx
@cabsandy
@cabsandy 3 года назад
top banana chris-think I'll do a dump off my home router and see if I can find a "slow" server :-). Keep up the good work!
@ChrisGreer
@ChrisGreer 3 года назад
Awesome! Go for it. Report back if you find anything interesting.
@oneyeartomaster5695
@oneyeartomaster5695 2 года назад
is there any way to decrease that TCP Delay ?
@rougearlequin
@rougearlequin 2 года назад
Tcp delta in this stream. Column. Sort.
@b3b3chaud
@b3b3chaud 3 месяца назад
I can't find the right traduction in french for packet head. Lol This is good infos, thank you.
@user-ck8hy8wg8g
@user-ck8hy8wg8g 10 месяцев назад
Hello Chris, TCP delta is fine but how you add delta Kindly help
@misha2082
@misha2082 3 года назад
Why would someone downvote this content? RU-vid should remove that option completely, it brings only negativity.
@ChrisGreer
@ChrisGreer 3 года назад
Thanks for the kind comment Mykhaylo. Yeah not everyone wants to learn how to troubleshoot TCP I guess!
@yellajatinswaroop4905
@yellajatinswaroop4905 3 года назад
Thanks sir ,Great video, it would be helpful for us , if u start making a youtube series on wireshark,just like David Bombal & Network Chuck for CCNA Tq sir
@ChrisGreer
@ChrisGreer 3 года назад
Thanks for the comment Yella - yes that is definitely on my mind to do. A more comprehensive course for Wireshark here on RU-vid. Let me know if that sounds interesting to you all out there!
@alextimmermans5122
@alextimmermans5122 3 года назад
@@ChrisGreer Yes, please !
@nms9352
@nms9352 3 года назад
Echoing Yella, for sure!
@yellajatinswaroop4905
@yellajatinswaroop4905 3 года назад
Plz sir !
@janekmachnicki2593
@janekmachnicki2593 Год назад
Chris you are amazing engineer .Any more courses on Udemy ?
@ChrisGreer
@ChrisGreer Год назад
I have one planned around nmap. Hoping to get it shot and edited in December.
@janekmachnicki2593
@janekmachnicki2593 Год назад
@@ChrisGreer Great !! Always is best to learn from the best .Greetings fom Brum
@amitkoren948
@amitkoren948 2 года назад
Am i wrong saying i can just have a column for 'delta time displayed' and then do 'follow tcp stream' to achieve the same thing?
@ChrisGreer
@ChrisGreer 2 года назад
You could, but when you are working with a multi-threaded application or several TCP connections in parallel, it's harder to find the delays because you have to filter the streams one at a time. A TCP Delta column lets you see the delays in context, without needed to filter the connections one at a time. So in short, in a pcap that only has one or two connections - the delta time displayed would be ok with a connection filter. But any more than that you can speed your analysis with a TCP delta column.
@israelavivi6202
@israelavivi6202 2 года назад
hello how can i download the pcapng file to work on it ? thanks
@ChrisGreer
@ChrisGreer 2 года назад
Click on the link in the description - go to Export - Download File.
@jimmywang100
@jimmywang100 2 года назад
Hi , i just downloaded wireshark 3.6.3, i do not see Delta in my column .. how do i add that delta ?
@ChrisGreer
@ChrisGreer 2 года назад
Hey Jimmy - I walk you through that here - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-OU-A2EmVrKQ.html
@adumule431
@adumule431 3 года назад
hi can we see the user id and key of a website through Wireshark
@ChrisGreer
@ChrisGreer 3 года назад
I think you are referring to user ID's and passwords? Generally no since most of that is encrypted, unless we have stored the session keys and they are exchanged in clear text. Protocols like telnet and FTP still allow you to see them though.
@alugupavankumar5649
@alugupavankumar5649 2 года назад
I don't see a apply as column option when I right click on the packet. Is tht any such new update with wireshark?
@ChrisGreer
@ChrisGreer 2 года назад
Hmm... that is a pretty standard feature. Try right-clicking something in the detail pane and not the summary pane. Like an IP address or a Length field.
@arunRaj-jl1lv
@arunRaj-jl1lv 5 месяцев назад
@@ChrisGreer Same i couldn't see at 4.2 version.
@mmaranta785
@mmaranta785 8 месяцев назад
Packetheads!
@Leafspine
@Leafspine 3 года назад
Кто ещё по рекомендации от Netskills сюда пришел?)
@LightningTrooper
@LightningTrooper 3 года назад
Вот человек удивится наплыву коллег с России.
@sujitharajan6468
@sujitharajan6468 3 месяца назад
@sujitharajan6468 0 seconds ago Hi chris, thank you for this amazon work. At @3:42 around when you add TCP delta and sort you see 19 sec delay packets. You said that this is in consideration with the above TCP packet whereas the before sort gave a 1 second delta. How is it that if two packets has a 19 second delay between them that is not shown while sorting time delta ?
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