![]() There is a bug report where the patch was mentioned at “Needless” probably doesn’t sound technically weird enough, so in papers about those retransmissions they were labeled “spurious”. ![]() What does “Spurious Retransmission” mean?īasically “Spurious Retransmission” means that data was sent again that the receiver had already acknowledged, which is something that we used to call “needless retransmission” in our own expert system. ![]() The older change was to add an expert message when a segment was seen that was transmitting data older than the last segment that the receiver had requested. It turned out that two changes had been made that explained the screen shot above, one by the Joe from Cloudshark, and one by Sake: ![]() So I fired up my SVN tool to get the latest code revision and took a look at “packet-tcp.c” in the dissector directory. It turned out that Landi didn’t get those expert messages in his version of Wireshark, so I guessed that it had to be something that was changed pretty recently, since I was using the 1.11 developer version (for verifying some bug reports that had been closed) and he was on 1.10 stable. Well, my English is not so bad, but I had no clue what this kind of retransmission was supposed to be (or even what the word “spurious” meant :-)), especially in a SYN packet, which had never been marked as a retransmission before: Tracking the code change So I did, and while we were talking about what the SSL dissector was doing I saw a new TCP expert message I had never seen before: “TCP Spurious Retransmission”. Today, while doing a lot of testing of my trace handling code as well as in preparation for the upcoming Sharkfest 2013, I got a trace sample from Landi that he wanted me to take a look at because he wondered about some SSL decoding stuff. Update: since Wireshark version 1.12 is out, lots of people look for the meaning of “tcp spurious retransmission” info message, so I changed the post a little to make it easier to find what you’re looking for.
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![]() Each one is between 15 – 25 minutes long. If that’s you, you’ll certainly appreciate the solid foundation of knowledge you’ll pick up from the three videos below. These videos were created specifically for anyone who is new to Affinity Designer. ![]() There is an excellent series of tutorials from the YouTube channel Detour Shirts. ![]() Serif also has a more extensive collection of tutorials that cover specific tools and features. I recommend watching this video before moving on to the other tutorials showcased here. It’s less than five minutes long and it provides a solid overview of the user interface so you’ll understand more about how the software works. This video tutorial from Serif is an excellent starting point if you’re new to Affinity Designer. ![]() You’ll find video tutorials, as well as text-based tutorials here, and a wide range of topics, are covered. Let’s take a look at some of the best tutorials that will help you to learn this powerful software in no time. It’s the most comprehensive resource available for anyone who wants to learn the program. This is an official guide created by Serif, the makers of the software. If you’re serious about learning and mastering Affinity Designer, this workbook is an outstanding resource. However, it’s different than both Photoshop and Illustrator, so educational resources can be a big help. Thankfully, Affinity Designer is pretty user-friendly and if you have experience with other design software, you’ll probably pick it up rather quickly. The downside to using new software is the learning curve. A free trial is available if you want to give it a test run. The software is available for a one-time price, and a very low price at that (currently just $49.99). Many designers and creatives would love to get away from their Creative Cloud subscription and avoid recurring payments, and Affinity Designers makes that possible. It doesn’t offer the same photo editing capabilities as Photoshop (they have Affinity Photo for that) but the design tools and capabilities are very impressive. It’s a cross between Illustrator and Photoshop because it allows you to create vector or raster designs. Affinity Designer is a powerful Adobe Illustrator and Photoshop alternative. The answer lies in the amount of data that needs to be transferred. ![]() This allows users to see how their internet speed compares to others and helps them identify any potential issues with their connection. The website also provides a map of the results, allowing users to compare their internet speeds with other users in Ookla Speed Test helps users understand their internet speed by connecting to a nearby server and measuring the amount of data that can be downloaded and uploaded within a certain period of time. The website is free to use and requires no registration, making it easy for anyone to use. 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In particular, it prevents unauthorized changes of antivirus settings, suspension of real-time protection, and disabling of cloud protection. ![]() ![]() Tamper protection provides additional protection for core Microsoft Defender security features. I used to uninstall the older version, restart the browser and download the most recent version and install it. I would appreciate help with updating Flash to the most recent version. Since it is not telling me that there is a more recent version of Flash unless I click "Check Now" should I still do it the way I used to install the latest version of flash? (The way before this icon was added to System Preferences)? Also, there has been 5 "newer versions" available since this icon was installed in System Prefeences, I have only found out about the newer versions when I clicked "Check Now." If I read that with this new way to install the latest Mac version of Flash does not require me to uninstall the previous version of Flash how do I install the most recent version of Flash? Does it come in an email? It says it will install the latest version of Flash without having to remove the previous version, but I have never been told that a newer version is available unless I clcik "check now." although "Check for updates automatically" is checked, I do not know where it tells me a newer version is available. ![]() ![]() ![]() One allows updates to check automatically. Recently Adobe Flash installed an icon in my System Preferences and when I click the icon there are several tabs. |