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Peter N. M. HansteenYes, The Book of PF, 4th Edition Is Coming Soon <a href="https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html" rel="nofollow noopener" translate="no" target="_blank">https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html</a> Long rumored and eagerly anticipated by some, the fourth edition of The Book of PF is now available for preorder <a href="https://nostarch.com/book-of-pf-4th-edition" rel="nofollow noopener" translate="no" target="_blank">https://nostarch.com/book-of-pf-4th-edition</a> <a href="https://mastodon.social/tags/openbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#openbsd</a> <a href="https://mastodon.social/tags/pf" class="mention hashtag" rel="nofollow noopener" target="_blank">#pf</a> <a href="https://mastodon.social/tags/packetfilter" class="mention hashtag" rel="nofollow noopener" target="_blank">#packetfilter</a> <a href="https://mastodon.social/tags/freebsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#freebsd</a> <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#networking</a> <a href="https://mastodon.social/tags/security" class="mention hashtag" rel="nofollow noopener" target="_blank">#security</a> <a href="https://mastodon.social/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://mastodon.social/tags/ipv6" class="mention hashtag" rel="nofollow noopener" target="_blank">#ipv6</a> <a href="https://mastodon.social/tags/ipv4" class="mention hashtag" rel="nofollow noopener" target="_blank">#ipv4</a> <a href="https://mastodon.social/tags/bookofpf" class="mention hashtag" rel="nofollow noopener" target="_blank">#bookofpf</a>... and of course somebody had to ask, "when can we expect a fifth edition", to which the answer was "let's get this one out the door first"That said, watch this space for further announcements!

mkjDo I have anyone within my reach who would be willing to help me debug a DNAT issue on OPNsense?I can sincerely say that it's *probably* trivial, and I am *probably* just missing something obvious; but it's not obvious when you're not quite sure what you're looking for. Reading the documentation, browsing the forum and searching the web has not led me to find a solution.Boosts appreciated.<a href="https://social.mkj.earth/tags/OPNsense" class="mention hashtag" rel="nofollow noopener" target="_blank">#OPNsense</a> <a href="https://social.mkj.earth/tags/NAT" class="mention hashtag" rel="nofollow noopener" target="_blank">#NAT</a> <a href="https://social.mkj.earth/tags/DNAT" class="mention hashtag" rel="nofollow noopener" target="_blank">#DNAT</a> <a href="https://social.mkj.earth/tags/network" class="mention hashtag" rel="nofollow noopener" target="_blank">#network</a> <a href="https://social.mkj.earth/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#networking</a> <a href="https://social.mkj.earth/tags/TCPIP" class="mention hashtag" rel="nofollow noopener" target="_blank">#TCPIP</a>

Peter N. M. Hansteendhcpd(8): use UDP sockets instead of BPF <a href="https://www.undeadly.org/cgi?action=article;sid=20250613111800" rel="nofollow noopener" translate="no" target="_blank">https://www.undeadly.org/cgi?action=article;sid=20250613111800</a> <a href="https://mastodon.social/tags/openbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#openbsd</a> <a href="https://mastodon.social/tags/dhcpd" class="mention hashtag" rel="nofollow noopener" target="_blank">#dhcpd</a> <a href="https://mastodon.social/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#networking</a> <a href="https://mastodon.social/tags/udp" class="mention hashtag" rel="nofollow noopener" target="_blank">#udp</a> <a href="https://mastodon.social/tags/bpf" class="mention hashtag" rel="nofollow noopener" target="_blank">#bpf</a> <a href="https://mastodon.social/tags/development" class="mention hashtag" rel="nofollow noopener" target="_blank">#development</a> <a href="https://mastodon.social/tags/newfeature" class="mention hashtag" rel="nofollow noopener" target="_blank">#newfeature</a> <a href="https://mastodon.social/tags/testing" class="mention hashtag" rel="nofollow noopener" target="_blank">#testing</a> <a href="https://mastodon.social/tags/freesoftware" class="mention hashtag" rel="nofollow noopener" target="_blank">#freesoftware</a> <a href="https://mastodon.social/tags/libresoftware" class="mention hashtag" rel="nofollow noopener" target="_blank">#libresoftware</a>

Phanuel<a href="https://fosstodon.org/@goldfishlaser" class="u-url mention" rel="nofollow noopener" target="_blank">@goldfishlaser</a> thanks! I am always on the lookout for any decentralizing technologies. This <a href="https://mastodon.social/tags/meshtastic" class="mention hashtag" rel="nofollow noopener" target="_blank">#meshtastic</a> looks good, but I'm primarily interested in such platforms or networks which can handle <a href="https://mastodon.social/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> or <a href="https://mastodon.social/tags/ipfs" class="mention hashtag" rel="nofollow noopener" target="_blank">#ipfs</a> .

Peter N. M. Hansteen<a href="https://wetdry.world/@nonfedimemes" class="u-url mention" rel="nofollow noopener" target="_blank">@nonfedimemes</a> Seeing the mention of carrier pigeons has me think that sure, any step towards an independent, interoperable RFC1149 implementation would be welcome (see <a href="https://www.bsdly.net/~peter/rfc1149_ten_years_of_in-flight_internet.html" rel="nofollow noopener" translate="no" target="_blank">https://www.bsdly.net/~peter/rfc1149_ten_years_of_in-flight_internet.html</a> for some relevant links), but that would perhaps run the risk of being somewhat distruptive in a school or at least classroom environment <a href="https://mastodon.social/tags/rfc1149" class="mention hashtag" rel="nofollow noopener" target="_blank">#rfc1149</a> <a href="https://mastodon.social/tags/pigeons" class="mention hashtag" rel="nofollow noopener" target="_blank">#pigeons</a> <a href="https://mastodon.social/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://mastodon.social/tags/cpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#cpip</a>

Joaquim HomrighausenIf you're not running your own DNS resolver, and/or not running PiHole, changing your DNS from 8.8.8.8 to 9.9.9.9 is a good first step 😉 <a href="https://mastodon.online/tags/dns" class="mention hashtag" rel="nofollow noopener" target="_blank">#dns</a> <a href="https://mastodon.online/tags/infrastructure" class="mention hashtag" rel="nofollow noopener" target="_blank">#infrastructure</a> <a href="https://mastodon.online/tags/devops" class="mention hashtag" rel="nofollow noopener" target="_blank">#devops</a> <a href="https://mastodon.online/tags/quad9" class="mention hashtag" rel="nofollow noopener" target="_blank">#quad9</a> <a href="https://mastodon.online/tags/google" class="mention hashtag" rel="nofollow noopener" target="_blank">#google</a> <a href="https://mastodon.online/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://mastodon.online/tags/internet" class="mention hashtag" rel="nofollow noopener" target="_blank">#internet</a> <a href="https://mastodon.online/tags/cybersec" class="mention hashtag" rel="nofollow noopener" target="_blank">#cybersec</a> <a href="https://mastodon.online/tags/infosec" class="mention hashtag" rel="nofollow noopener" target="_blank">#infosec</a> <a href="https://mastodon.online/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#cybersecurity</a> <a href="https://mastodon.online/tags/pihole" class="mention hashtag" rel="nofollow noopener" target="_blank">#pihole</a>

SQLAllFatherBlast from the past: I digitized and uploaded a 1993 VHS video tape that was included with my trainer kit for teaching Internetworking with Microsoft Windows NT 3.5. I assume the audience for this one is pretty niche, but for me it provided a welcome dose of healthy nostalgia.<a href="https://www.youtube.com/watch?v=dGiPQBoSSpM" rel="nofollow noopener" translate="no" target="_blank">https://www.youtube.com/watch?v=dGiPQBoSSpM</a><a href="https://techhub.social/tags/TCPIP" class="mention hashtag" rel="nofollow noopener" target="_blank">#TCPIP</a> <a href="https://techhub.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#RetroComputing</a> <a href="https://techhub.social/tags/Retro" class="mention hashtag" rel="nofollow noopener" target="_blank">#Retro</a> <a href="https://techhub.social/tags/VHSRip" class="mention hashtag" rel="nofollow noopener" target="_blank">#VHSRip</a> <a href="https://techhub.social/tags/Microsoft" class="mention hashtag" rel="nofollow noopener" target="_blank">#Microsoft</a>

Peter N. M. HansteenThere was a "Network Management with the OpenBSD Packet Filter Toolset" tutorial session at <a href="https://bsd.network/@EuroBSDCon" class="u-url mention" rel="nofollow noopener" target="_blank">@EuroBSDCon</a> 2024, here are the updated slides: <a href="https://nxdomain.no/~peter/pf_fullday.pdf" rel="nofollow noopener" translate="no" target="_blank">https://nxdomain.no/~peter/pf_fullday.pdf</a> <a href="https://mastodon.social/tags/openbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#openbsd</a> <a href="https://mastodon.social/tags/pf" class="mention hashtag" rel="nofollow noopener" target="_blank">#pf</a> <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#networking</a> <a href="https://mastodon.social/tags/security" class="mention hashtag" rel="nofollow noopener" target="_blank">#security</a> <a href="https://mastodon.social/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://mastodon.social/tags/ipv6" class="mention hashtag" rel="nofollow noopener" target="_blank">#ipv6</a> <a href="https://mastodon.social/tags/ipv4" class="mention hashtag" rel="nofollow noopener" target="_blank">#ipv4</a> <a href="https://mastodon.social/tags/ssh" class="mention hashtag" rel="nofollow noopener" target="_blank">#ssh</a> <a href="https://mastodon.social/tags/spam" class="mention hashtag" rel="nofollow noopener" target="_blank">#spam</a> <a href="https://mastodon.social/tags/packetfilter" class="mention hashtag" rel="nofollow noopener" target="_blank">#packetfilter</a> <a href="https://mastodon.social/tags/eurobsdcon" class="mention hashtag" rel="nofollow noopener" target="_blank">#eurobsdcon</a>

Kevin Karhan :verified:<a href="https://rubber.social/@dragonarchitect" class="u-url mention" rel="nofollow noopener" target="_blank">@dragonarchitect</a> <a href="https://mstdn.social/@DeltaWye" class="u-url mention" rel="nofollow noopener" target="_blank">@DeltaWye</a> <a href="https://mastodon.social/@torproject" class="u-url mention" rel="nofollow noopener" target="_blank">@torproject</a> But yeah, to offer even simpler <a href="https://rubber.social/@dragonarchitect/112934155131696885" rel="nofollow noopener" target="_blank">analogies</a> for and "<a href="https://infosec.space/tags/TechIlliterates" class="mention hashtag" rel="nofollow noopener" target="_blank">#TechIlliterates</a>": Consider your Internet connection like driveways or drive-in with in-going (download) and outgoiung (upload) connections.The wider (faster) the lane (bandwith) the bigger and heavier vehicles can drive in faster to reach the loading bay (device).And data doesn't get mixed up because every data packet - like a real life package - has it's own shipping label that enshures your router and any device using the same internet connection knows this if from/to said device and even application.All one can do is make things slow down due to parallel use - just like when multiple delivery companies arrive at the same house or even same person and they've to stand in line delivering their packages: The Amazon package won't fuse together with the eBay package or Newegg package... They all are comparmentalized to the point that like with an Apartment complex, the tennant on the top floor won't even know that someone rang the bell at the 2nd floor and now someone's getting a fridge delivered: They may only see the "slowdown" in that the delivery will likely occupy the elevator or staircase for a few mins if they happen to use them at the same time.It's like a set of escalators with asymetric speeds being more escalators down (load) than up (load): Worst-case people stand in line to get on the stairs or wheelchair users wait in line for the elevator...And TCP/IP even has automatic measures in place to enshure packages arrive at their desination intact and complete, and if in doubt will resend a package upon request.That's why even *unstable and slow+ internet connections just feel slower, not broken unless they loose the majority of packages.Which is my <a href="https://infosec.space/@kkarhan/112934304628230438" rel="nofollow noopener" target="_blank">mobile networks tend to throttle customers</a> not by negotiating a slower bandwith but merely dropping "excess packets" and <a href="https://en.wikipedia.org/wiki/TCP_congestion_control" rel="nofollow noopener" target="_blank">avoid congestion</a> down to literal <a href="https://en.wikipedia.org/wiki/TCP_congestion_control#Slow_start" rel="nofollow noopener" target="_blank">traffic managment</a>...So yeah, <a href="https://infosec.space/tags/TCPIP" class="mention hashtag" rel="nofollow noopener" target="_blank">#TCPIP</a> is very rugged and stable and designed to handle said speed issues just fine - kinda like a small residential road will merely experience a slowdown when a big truck parks on the roadside to unload a ton of furniture for a move-in: It doesn't result in the bypassers having chairs loged into their widscreens or their passengers end up inside the boxtruck, and unlike the real-life analogy they can't even purposefully attempt that.In fact, most CPEs aka. "Routers" offered by ISPs do even go so far as to prioritize traffic and prevent a single device from occupying all the bandwith, going as far as to actively reduce lower-priority traffic bandwith in favour of VoIP and IPTV streaming: Kinda like intelligent traffic lights or a traffic warden / traffic police officer will deliberately slow down if not stop traffic to let emergency vehicles with lights and sirens pass through...And that all happens transparently in the background: Just like any postal / parcel delivery service will automatically prioritize express / overnight / airmail deliveries and expedite them over regular shipments. Feel free to pick whatever feels the most appropriate analogy, because the Internet isn't like domestic water piping where one shared heater can result in someone flushing the toilet causing the sower to get hot, but instead only reduce the output of water at the showerhead.

Peter N. M. HansteenFriends, I have a problem with the ISP that operates the fiber line to our house. Pretty much every time they need to reconfigure their CGNAT they for some reason kill IPv6 and our autoconfig'd gear end up with "Unique Local" (fc/7) addresses. Is this a common problem, seen elsewhere? I suspect Cisco gear but have no way to check. <a href="https://mastodon.social/tags/ipv6" class="mention hashtag" rel="nofollow noopener" target="_blank">#ipv6</a> <a href="https://mastodon.social/tags/ula" class="mention hashtag" rel="nofollow noopener" target="_blank">#ula</a> <a href="https://mastodon.social/tags/internet" class="mention hashtag" rel="nofollow noopener" target="_blank">#internet</a> <a href="https://mastodon.social/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://mastodon.social/tags/cgnat" class="mention hashtag" rel="nofollow noopener" target="_blank">#cgnat</a>

Peter N. M. HansteenEnable local-to-anchors tables in PF rules <a href="https://www.undeadly.org/cgi?action=article;sid=20240714154257" rel="nofollow noopener" translate="no" target="_blank">https://www.undeadly.org/cgi?action=article;sid=20240714154257</a> <a href="https://mastodon.social/tags/openbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#openbsd</a> <a href="https://mastodon.social/tags/pf" class="mention hashtag" rel="nofollow noopener" target="_blank">#pf</a> <a href="https://mastodon.social/tags/packetfilter" class="mention hashtag" rel="nofollow noopener" target="_blank">#packetfilter</a> <a href="https://mastodon.social/tags/anchors" class="mention hashtag" rel="nofollow noopener" target="_blank">#anchors</a> <a href="https://mastodon.social/tags/tables" class="mention hashtag" rel="nofollow noopener" target="_blank">#tables</a> <a href="https://mastodon.social/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://mastodon.social/tags/filtering" class="mention hashtag" rel="nofollow noopener" target="_blank">#filtering</a> <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#networking</a>

🏁⚡Omar Two Tone⚡🏁:verified:<a href="https://ioc.exchange/tags/LOL" class="mention hashtag" rel="nofollow noopener" target="_blank">#LOL</a> 😂 🤪 🤓<a href="https://ioc.exchange/tags/networks" class="mention hashtag" rel="nofollow noopener" target="_blank">#networks</a> <a href="https://ioc.exchange/tags/IT" class="mention hashtag" rel="nofollow noopener" target="_blank">#IT</a> <a href="https://ioc.exchange/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://ioc.exchange/tags/osi" class="mention hashtag" rel="nofollow noopener" target="_blank">#osi</a>

Interpeer ProjectInterpeer Architecture Part 1: The Internet/Web Stack<a href="https://makertube.net/videos/watch/1662e120-b86a-4040-a230-dc6ad5f658ce" rel="nofollow noopener" translate="no" target="_blank">https://makertube.net/videos/watch/1662e120-b86a-4040-a230-dc6ad5f658ce</a>

Peter N. M. Hansteenpfctl(8) and systat(8) to display fragment reassembly statistics <a href="https://www.undeadly.org/cgi?action=article;sid=20240423052538" rel="nofollow noopener" translate="no" target="_blank">https://www.undeadly.org/cgi?action=article;sid=20240423052538</a> <a href="https://mastodon.social/tags/openbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#openbsd</a> <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#networking</a> <a href="https://mastodon.social/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://mastodon.social/tags/fragments" class="mention hashtag" rel="nofollow noopener" target="_blank">#fragments</a> <a href="https://mastodon.social/tags/reassembly" class="mention hashtag" rel="nofollow noopener" target="_blank">#reassembly</a> <a href="https://mastodon.social/tags/pfctl" class="mention hashtag" rel="nofollow noopener" target="_blank">#pfctl</a> <a href="https://mastodon.social/tags/systat" class="mention hashtag" rel="nofollow noopener" target="_blank">#systat</a>

jordanA VM I spun up grabbed an IP of 192.168.251.0. I dunno why but I was shocked that it ended in a zero. Totally forgot that they can end in zero.<a href="https://mastodon.jordanwages.com/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#networking</a> <a href="https://mastodon.jordanwages.com/tags/it" class="mention hashtag" rel="nofollow noopener" target="_blank">#it</a> <a href="https://mastodon.jordanwages.com/tags/admin" class="mention hashtag" rel="nofollow noopener" target="_blank">#admin</a> <a href="https://mastodon.jordanwages.com/tags/vm" class="mention hashtag" rel="nofollow noopener" target="_blank">#vm</a> <a href="https://mastodon.jordanwages.com/tags/virtualmachine" class="mention hashtag" rel="nofollow noopener" target="_blank">#virtualmachine</a> <a href="https://mastodon.jordanwages.com/tags/tcp" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcp</a> <a href="https://mastodon.jordanwages.com/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a>

Soh Kam Yung"IEEE Life Fellow Robert E. Kahn, widely known as one of the “fathers of the Internet,” is the recipient of the 2024 IEEE Medal of Honor. He is being recognized for “pioneering technical and leadership contributions in packet communication technologies and foundations of the Internet.”"<a href="https://spectrum.ieee.org/medal-of-honor-bob-kahn" rel="nofollow noopener" translate="no" target="_blank">https://spectrum.ieee.org/medal-of-honor-bob-kahn</a><a href="https://mstdn.io/tags/IEEEMedalOfHonor" class="mention hashtag" rel="nofollow noopener" target="_blank">#IEEEMedalOfHonor</a> <a href="https://mstdn.io/tags/BobKahn" class="mention hashtag" rel="nofollow noopener" target="_blank">#BobKahn</a> <a href="https://mstdn.io/tags/Internet" class="mention hashtag" rel="nofollow noopener" target="_blank">#Internet</a> <a href="https://mstdn.io/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#Networking</a> <a href="https://mstdn.io/tags/TCPIP" class="mention hashtag" rel="nofollow noopener" target="_blank">#TCPIP</a> <a href="https://mstdn.io/tags/Protocols" class="mention hashtag" rel="nofollow noopener" target="_blank">#Protocols</a> <a href="https://mstdn.io/tags/Technology" class="mention hashtag" rel="nofollow noopener" target="_blank">#Technology</a>

Peter N. M. HansteenCall For Testing: Add TSO support for em(4) <a href="https://www.undeadly.org/cgi?action=article;sid=20231227141831" rel="nofollow noopener" translate="no" target="_blank">https://www.undeadly.org/cgi?action=article;sid=20231227141831</a> <a href="https://mastodon.social/tags/openbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#openbsd</a> <a href="https://mastodon.social/tags/networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#networking</a> <a href="https://mastodon.social/tags/em" class="mention hashtag" rel="nofollow noopener" target="_blank">#em</a> <a href="https://mastodon.social/tags/performance" class="mention hashtag" rel="nofollow noopener" target="_blank">#performance</a> <a href="https://mastodon.social/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://mastodon.social/tags/testing" class="mention hashtag" rel="nofollow noopener" target="_blank">#testing</a> <a href="https://mastodon.social/tags/cft" class="mention hashtag" rel="nofollow noopener" target="_blank">#cft</a>

mkbTCP/IP is 50 years old!“TCP/IP was born in this day 50 years ago when the editors of IEEE Transactions on Communications received a manuscript from Vint Cerf and Bob Kahn which described a method for sending packets across networks.”<a href="https://mastodon.social/tags/tcpip" class="mention hashtag" rel="nofollow noopener" target="_blank">#tcpip</a> <a href="https://www.epanorama.net/newepa/2023/11/04/tcpip-is-50-years-old/" rel="nofollow noopener" translate="no" target="_blank">https://www.epanorama.net/newepa/2023/11/04/tcpip-is-50-years-old/</a>

Andrew DentonShowing off my nice looking <a href="https://fosstodon.org/tags/Books" class="mention hashtag" rel="nofollow noopener" target="_blank">#Books</a> <a href="https://fosstodon.org/tags/WordPress" class="mention hashtag" rel="nofollow noopener" target="_blank">#WordPress</a> <a href="https://fosstodon.org/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linux</a> <a href="https://fosstodon.org/tags/Windows" class="mention hashtag" rel="nofollow noopener" target="_blank">#Windows</a> <a href="https://fosstodon.org/tags/Windows10" class="mention hashtag" rel="nofollow noopener" target="_blank">#Windows10</a> <a href="https://fosstodon.org/tags/Unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#Unix</a> <a href="https://fosstodon.org/tags/Comptia" class="mention hashtag" rel="nofollow noopener" target="_blank">#Comptia</a> <a href="https://fosstodon.org/tags/Hacking" class="mention hashtag" rel="nofollow noopener" target="_blank">#Hacking</a> <a href="https://fosstodon.org/tags/Blender" class="mention hashtag" rel="nofollow noopener" target="_blank">#Blender</a> <a href="https://fosstodon.org/tags/Networking" class="mention hashtag" rel="nofollow noopener" target="_blank">#Networking</a> <a href="https://fosstodon.org/tags/Cybersecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#Cybersecurity</a> <a href="https://fosstodon.org/tags/KevinMitnick" class="mention hashtag" rel="nofollow noopener" target="_blank">#KevinMitnick</a> <a href="https://fosstodon.org/tags/TCPIP" class="mention hashtag" rel="nofollow noopener" target="_blank">#TCPIP</a> <a href="https://fosstodon.org/tags/SteveJobs" class="mention hashtag" rel="nofollow noopener" target="_blank">#SteveJobs</a>

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