From _ at thomaslevine.com Thu Mar 1 12:55:58 2018 From: _ at thomaslevine.com (Thomas Levine) Date: Thu, 01 Mar 2018 17:55:58 +0000 Subject: [talk] Using separate users for different programs In-Reply-To: <20180224051819.E48F67E12E@mailuser.nyi.internal> References: <20180222201701.477C07E3C5@mailuser.nyi.internal> <20180224051819.E48F67E12E@mailuser.nyi.internal> Message-ID: <20180301175559.7B0A07E4AA@mailuser.nyi.internal> Thomas Levine writes: > Then I suppose I will write my own. > Maybe I'll report in a few months if I wind up using it. > https://thomaslevine.com/scm/subdo I surprisingly find myself using it after just a few days. I have already ported the most worrysome of the softwares that I use often, and the ports have all been very short. I see no future talks scheduled; would anyone like to hear about this in April? John C. Vernaleo, Ph.D. writes: > Sounds like you are about halfway to the solution Qubes OS uses where you > have seperate VMs for differrent tasks. I have long held the view that file modes, environment variables, users, and groups provide more than enough separation for almost all situations where people presently tend to use virtual machines. There is also a practical issue: I am unwilling to sacrifice usability for security, and since OpenBSD is the easiest operating system I have ever used, Qubes suffers from the very significant disadvantage of not being OpenBSD. But the paradigms are indeed quite similar in concept. From _ at thomaslevine.com Thu Mar 1 16:55:46 2018 From: _ at thomaslevine.com (Thomas Levine) Date: Thu, 01 Mar 2018 21:55:46 +0000 Subject: [talk] Using separate users for different programs In-Reply-To: References: <20180222201701.477C07E3C5@mailuser.nyi.internal> <20180224051819.E48F67E12E@mailuser.nyi.internal> <20180301175559.7B0A07E4AA@mailuser.nyi.internal> Message-ID: <20180301215547.C753A7E321@mailuser.nyi.internal> Well that would be neat. But I still don't understand why to use virtual machines rather than ordinary Unix permissions. The only purposes I see would be to run entirely different operating systems or maybe to set up very complex networking. What am I missing? From john at netpurgatory.com Thu Mar 1 13:02:52 2018 From: john at netpurgatory.com (John C. Vernaleo) Date: Thu, 1 Mar 2018 13:02:52 -0500 (EST) Subject: [talk] Using separate users for different programs In-Reply-To: <20180301175559.7B0A07E4AA@mailuser.nyi.internal> References: <20180222201701.477C07E3C5@mailuser.nyi.internal> <20180224051819.E48F67E12E@mailuser.nyi.internal> <20180301175559.7B0A07E4AA@mailuser.nyi.internal> Message-ID: On Thu, 1 Mar 2018, Thomas Levine wrote: > There is also a practical issue: I am unwilling to sacrifice usability > for security, and since OpenBSD is the easiest operating system I have > ever used, Qubes suffers from the very significant disadvantage of not > being OpenBSD. At one point someone from Bitrig was working to try and get Bitrig or OpenBSD as a fully functional Qubes VM in an attempt to start replaces parts of Qubes with OpenBSD. Unfortunately they gave up after deciding the scope of the work was just too much. From kmsujit at gmail.com Fri Mar 2 01:20:41 2018 From: kmsujit at gmail.com (Sujit K M) Date: Fri, 2 Mar 2018 11:50:41 +0530 Subject: [talk] Using separate users for different programs In-Reply-To: References: <20180222201701.477C07E3C5@mailuser.nyi.internal> <20180224051819.E48F67E12E@mailuser.nyi.internal> <20180301175559.7B0A07E4AA@mailuser.nyi.internal> Message-ID: On Mar 2, 2018 11:35 AM, "John C. Vernaleo" wrote: On Thu, 1 Mar 2018, Thomas Levine wrote: There is also a practical issue: I am unwilling to sacrifice usability > for security, and since OpenBSD is the easiest operating system I have > ever used, Qubes suffers from the very significant disadvantage of not > being OpenBSD. > At one point someone from Bitrig was working to try and get Bitrig or OpenBSD as a fully functional Qubes VM in an attempt to start replaces parts of Qubes with OpenBSD. Unfortunately they gave up after deciding the scope of the work was just too much. _______________________________________________ talk mailing list talk at lists.nycbug.org http://lists.nycbug.org/mailman/listinfo/talk Simplest implementation is to use cron. Might be I am way off target. -------------- next part -------------- An HTML attachment was scrubbed... URL: From edlinuxguru at gmail.com Fri Mar 2 01:25:23 2018 From: edlinuxguru at gmail.com (Edward Capriolo) Date: Fri, 2 Mar 2018 01:25:23 -0500 Subject: [talk] Using separate users for different programs In-Reply-To: References: <20180222201701.477C07E3C5@mailuser.nyi.internal> <20180224051819.E48F67E12E@mailuser.nyi.internal> <20180301175559.7B0A07E4AA@mailuser.nyi.internal> Message-ID: On Thu, Mar 1, 2018 at 1:02 PM, John C. Vernaleo wrote: > On Thu, 1 Mar 2018, Thomas Levine wrote: > > There is also a practical issue: I am unwilling to sacrifice usability >> for security, and since OpenBSD is the easiest operating system I have >> ever used, Qubes suffers from the very significant disadvantage of not >> being OpenBSD. >> > > At one point someone from Bitrig was working to try and get Bitrig or > OpenBSD as a fully functional Qubes VM in an attempt to start replaces > parts of Qubes with OpenBSD. Unfortunately they gave up after deciding the > scope of the work was just too much. > > _______________________________________________ > talk mailing list > talk at lists.nycbug.org > http://lists.nycbug.org/mailman/listinfo/talk > https://en.wikipedia.org/wiki/FreeBSD_jail or chroot? I was also a fan of http://0install.net/ for a while. -------------- next part -------------- An HTML attachment was scrubbed... URL: From john at netpurgatory.com Thu Mar 1 17:01:40 2018 From: john at netpurgatory.com (John C. Vernaleo) Date: Thu, 1 Mar 2018 17:01:40 -0500 (EST) Subject: [talk] Using separate users for different programs In-Reply-To: <20180301215547.C753A7E321@mailuser.nyi.internal> References: <20180222201701.477C07E3C5@mailuser.nyi.internal> <20180224051819.E48F67E12E@mailuser.nyi.internal> <20180301175559.7B0A07E4AA@mailuser.nyi.internal> <20180301215547.C753A7E321@mailuser.nyi.internal> Message-ID: On Thu, 1 Mar 2018, Thomas Levine wrote: > Well that would be neat. > > But I still don't understand why to use virtual machines rather than > ordinary Unix permissions. The only purposes I see would be to run > entirely different operating systems or maybe to set up very complex > networking. What am I missing? > Personally, I'm with you. I think the VM solution just adds way more code (and more code means more bugs) for questionable benefits in most cases but clearly we are in a bit of a minority. From jkeenan at pobox.com Mon Mar 5 09:18:40 2018 From: jkeenan at pobox.com (James E Keenan) Date: Mon, 5 Mar 2018 09:18:40 -0500 Subject: [talk] Social meeting Wed Mar 07? Message-ID: Since it appears that we don't have a technical meeting lined up for the first Wednesday of this month, I'd like to suggest that anyone who wants join us for dinner/drinks at Suspenders at 6:30 pm on Wednesday. Suspenders 108 Greenwich St (north of Rector St; south of WTC) #1, R, W to Rector St; #4, 5 to Wall ST Thank you very much. Jim Keenan From george at ceetonetechnology.com Mon Mar 5 15:47:00 2018 From: george at ceetonetechnology.com (George Rosamond) Date: Mon, 05 Mar 2018 20:47:00 +0000 Subject: [talk] Social meeting Wed Mar 07? In-Reply-To: References: Message-ID: <03bd7a13-5e30-f991-e07c-3ef434820376@ceetonetechnology.com> James E Keenan: > Since it appears that we don't have a technical meeting lined up for the > first Wednesday of this month, I'd like to suggest that anyone who wants > join us for dinner/drinks at Suspenders at 6:30 pm on Wednesday. > > Suspenders > 108 Greenwich St > (north of Rector St; south of WTC) > #1, R, W to Rector St; #4, 5 to Wall ST > Go for it. I can't make it. g From george at ceetonetechnology.com Mon Mar 5 15:50:00 2018 From: george at ceetonetechnology.com (George Rosamond) Date: Mon, 05 Mar 2018 20:50:00 +0000 Subject: [talk] Fwd: [bsdcan-announce] BSDCan 2018 - selected talks In-Reply-To: References: Message-ID: >From bsdcan-announce. Selected talks for BSDCan 2018. -------- Forwarded Message -------- Subject: [bsdcan-announce] BSDCan 2018 - selected talks Date: Mon, 5 Mar 2018 12:30:02 -0500 Hello, Here are the talks selected for BSDCan 2018. The full schedule will be published soon. 100x Faster Clone Deletion for ZFS: Sara Hartse A Public-Key Trust Infrastructure for FreeBSD: Eric McCorkle Adding verification to FreeBSD loader: Simon Gerraty Adventures in OpenBSD pledge: Bob Beck All along the dwatch tower: Devin Teske BGP for non-experts: Peter Hessler BSD from scratch: Sevan Janiyan devmatch -- matching devices to modules: Warner Losh eBPF Implementation for FreeBSD: Yutaro Hayakawa Fighting Spam at the Frontline: Aaron Poffenberger Forget reusability, aim for perfection: Ingo Schwarze FreeBSD ARM32/ARM64 : Porting to a new board: Emmanuel Vadot How to bootstrap a BSD conference: Li-Wen Hsu Implementing ZSTD in OpenZFS on FreeBSD: Allan Jude Imprisoning software with libiocage: Stefan Gr?nke Improving netdump hardware support and performance with iflib: Sam Gwydir Institutionalizing FreeBSD Isolated and Virtualized Hosts Using bsdinstall(8), zfs(8) and nfsd(8): Michael Dexter Introducing FreeBSD in new environment: the good, the bad, the ugly: Baptiste Daroussin Introducing FreeBSD/VPC: Sean Chittenden IT automation with Puppet: Romain Tarti?re Leveraging Jails for a FaaS System: Brian Downs Making your own console server using OpenBSD: Kurt Mosiejczuk Managing BSD Systems with Ansible: Benedict Reuschling Mininet on OpenBSD: Ayaka Koshibe Oh, a new Unix shell: Michael MacInnis OpenBSD/x-ray: Henning Brauer PASTE: Fast End System Networking with netmap: Michio Honda PF and networking tutorial with OpenBSD: Peter Hansteen Plumbing the Internet, BSD-style: Thomas Johnson Preparing your home router(s) for the future: Massimiliano Stucchi Profiling the FreeBSD kernel boot: Colin Percival Replacing Traditional Backup Systems with ZFS: Calvin Hendryx-Parker RoCE as a performance accelerator: Slava Shwartsman Running Linux applications on FreeBSD: Chuck Tuffli slaacd(8): Florian Obser SSH Key Management: Michael W. Lucas The Evolution of FreeBSD Governance: Kirk McKusick The Tragedy of systemd: Benno Rice The TrueOS Difference: Ken Moore Vagrant for OpenBSD make installations by the busloads easy: Philipp Buehler Want to add a disk to OpenZFS' RAID-Z?: Matt Ahrens Why did my application crash?: Ali Mashtizadeh Writing TLS secured client and server programs using the libtls API from libressl: Bob Beck ZFS send and receive, performance issues and improvements: Rodney W. Grimes zrepl - ZFS replication: Christian Schwarz Thanks to our sponsors Tarsnap - http: //www.tarsnap.com/ The FreeBSD Foundation - https: //www.freebsdfoundation.org/ Verisign/vBSDCon - https: //www.vbsdcon.com/ vBSDCon - http: //www.vbsdcon.com/ Mellanox - http: //www.mellanox.com/ HardenedBSD - https: //hardenedbsd.org/ Follow us: Google+: https: //plus.google.com/u/0/b/101572035005283336149/ Facebook: http: //www.facebook.com/group.php?gid=272755641371 Twitter: http: //www.twitter.com/bsdcan -- Dan Langille - BSDCan / PGCon dan at langille.org _______________________________________________ bsdcan-announce mailing list bsdcan-announce at lists.bsdcan.org https://lists.bsdcan.org/mailman/listinfo/bsdcan-announce From espen at tagestad.no Mon Mar 5 16:01:55 2018 From: espen at tagestad.no (Espen Tagestad) Date: Mon, 5 Mar 2018 16:01:55 -0500 Subject: [talk] Social meeting Wed Mar 07? In-Reply-To: References: Message-ID: <20180305210155.GA45056@tagestad.no> On Mon, Mar 05, 2018 at 09:18:40AM -0500, James E Keenan wrote: > Since it appears that we don't have a technical meeting lined up for the > first Wednesday of this month, I'd like to suggest that anyone who wants > join us for dinner/drinks at Suspenders at 6:30 pm on Wednesday. Cool. I'll pop by for an hour or two. br. Espen From venture37 at geeklan.co.uk Mon Mar 19 19:45:04 2018 From: venture37 at geeklan.co.uk (Sevan Janiyan) Date: Mon, 19 Mar 2018 23:45:04 +0000 Subject: [talk] packages for NetBSD/hpcmips and other mipsel based systems Message-ID: <94cca73a-7df0-b529-d9ff-99c20ece2f24@geeklan.co.uk> Hello, I've uploaded a tiny number of packages which I built on a Cobalt Qube2, these packages should work on systems under the mipsel family, that includes the PDAs such as the workpad running NetBSD/hpcmips & Cobalt appliances (obviously, since it was built on there). There's doom, pkgin, stunnel, gpg2, mutt, tcsh, zsh, bash, lynx and others, most importantly perl5 which you'll need if you want to take a stab at cross compiling packages. There will be more packages hopefully when the next run finishes, Qube is currently building Python. The packages are for NetBSD 8.0 which is currently beta. You can grab a latest build here: http://nycdn.netbsd.org/pub/NetBSD-daily/netbsd-8/ Packages are available at: http://cdn.netbsd.org/pub/pkgsrc/packages/NetBSD/cobalt/8.0-current/ Regards, Sevan From rambiusparkisanius at gmail.com Sun Mar 25 16:33:02 2018 From: rambiusparkisanius at gmail.com (Ivan "Rambius" Ivanov) Date: Sun, 25 Mar 2018 16:33:02 -0400 Subject: [talk] Measuring Internet Speed Message-ID: Hello, Spectrum / TWC are constantly offering me internet service speed upgrades for my home. How can I measure their internet speed and compare the old and new services? Regards Ivan -- Tangra Mega Rock: http://www.radiotangra.com From mirimir at riseup.net Sun Mar 25 20:34:55 2018 From: mirimir at riseup.net (Mirimir) Date: Sun, 25 Mar 2018 13:34:55 -1100 Subject: [talk] Measuring Internet Speed In-Reply-To: References: Message-ID: <275ec594-2bb7-644f-a91d-78dec5d1ba50@riseup.net> On 03/25/2018 09:33 AM, Ivan "Rambius" Ivanov wrote: > Hello, > > Spectrum / TWC are constantly offering me internet service speed > upgrades for my home. How can I measure their internet speed and > compare the old and new services? > > Regards > Ivan Typical speedtest sites can give misleading results. If you're willing to take the time, you can lease VPS in various DCs with gigabit connectivity. And use bbcp to transfer ~1GB files from /dev/urandom. From chsnyder at gmail.com Mon Mar 26 10:59:51 2018 From: chsnyder at gmail.com (Chris Snyder) Date: Mon, 26 Mar 2018 10:59:51 -0400 Subject: [talk] Measuring Internet Speed In-Reply-To: References: Message-ID: On Sun, Mar 25, 2018 at 4:33 PM, Ivan "Rambius" Ivanov < rambiusparkisanius at gmail.com> wrote: > > Spectrum / TWC are constantly offering me internet service speed > upgrades for my home. How can I measure their internet speed and > compare the old and new services? > > Measurement Lab is is a consortium of research, industry and public-interest partners dedicated to: - Providing an open, verifiable measurement platform for global network performance - Hosting the largest open Internet performance dataset on the planet - Creating visualizations and tools to help people make sense of Internet performance https://www.measurementlab.net/tests/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From sjt.kar at gmail.com Tue Mar 27 07:57:47 2018 From: sjt.kar at gmail.com (Sujit K M) Date: Tue, 27 Mar 2018 17:27:47 +0530 Subject: [talk] Measuring Internet Speed In-Reply-To: References: Message-ID: On Mon, Mar 26, 2018 at 8:29 PM, Chris Snyder wrote: > On Sun, Mar 25, 2018 at 4:33 PM, Ivan "Rambius" Ivanov > wrote: >> >> >> Spectrum / TWC are constantly offering me internet service speed >> upgrades for my home. How can I measure their internet speed and >> compare the old and new services? >> > > Measurement Lab is is a consortium of research, industry and public-interest > partners dedicated to: > > - Providing an open, verifiable measurement platform for global network > performance > - Hosting the largest open Internet performance dataset on the planet > - Creating visualizations and tools to help people make sense of Internet > performance > > https://www.measurementlab.net/tests/ Don't know exact details looks in US This site does some measurements. http://www.bandwidthplace.com/ It won't be difficult to come from scratch a program in Python to be written. -- -- Sujit K M blog(http://kmsujit.blogspot.com/) From ike at blackskyresearch.net Tue Mar 27 09:26:48 2018 From: ike at blackskyresearch.net (Isaac (.ike) Levy) Date: Tue, 27 Mar 2018 09:26:48 -0400 Subject: [talk] Measuring Internet Speed In-Reply-To: References: Message-ID: <1522157208.920540.1317625264.19F9C8CA@webmail.messagingengine.com> On Sun, Mar 25, 2018, at 4:33 PM, Ivan Rambius Ivanov wrote: > Hello, > > Spectrum / TWC are constantly offering me internet service speed > upgrades for my home. How can I measure their internet speed and > compare the old and new services? > > Regards > Ivan IMO, deep network performance testing gets into some existential meditations based on "what is network speed"? If you have access to a stable second host on the internet with adequate bandwidth for your tests: netperf (personal go-to) iperf (awesome features too) Along with their man pages, there are tons of one-liner how-to's online for these classic tools. Measuring network speed has so many variables, that there are infinite ways to go about this depending on what you're measuring. These tools are purpose-built for testing many aspects of a line. Depending on the machines you're using to test, simply piping data from /dev/zero to nc or something may run into bottlenecks in your hosts respective TCP buffering, as well as various internal control buffers in programs which may throttle you from various network tools (scp, etc...). While netperf and iperf are designed explicitly not to have such test-influencing bottlenecks, your OS network stack may be tuned in ways which can greatly affect the test- so if you're doing really hardcore line-speed testing, simply prepare to read and flip a *ton* of sysctls, to eliminate variables in testing (changes which will make your internet use from that machine surprisingly unusable on the network :) Additionally, to *really* test a new line, concurrent connections are a big deal depending on the connectivity technology you have, (DOCSIS/CABLE vs. FIBER vs. ATM/DSL, etc...) - even full-duplex connectivity gets really interestingly weird with some of these link-layer technologies. Tools like netperf and iperf themselves have parallel/concurrency type features, so you can test behavior of how you wish to use your line- (e.g. at home: watching a movie, while someone else in house is scp-ing files, or checking mail, or etc... All this traffic is so different in what constitutes "fast".) -- Folks have listed some good online measurment tools already, I'd also say that Google currently has a shockingly good browser-based measurment tool, (as they collect your stats on inet performance...). I stumbled into it when I was curious about internet performance from my phone. Best, .ike From jkeenan at pobox.com Tue Mar 27 10:46:38 2018 From: jkeenan at pobox.com (James E Keenan) Date: Tue, 27 Mar 2018 10:46:38 -0400 Subject: [talk] A NYCBUG-related presentation that's not at NYCBUG Message-ID: Tomorrow night, Wednesday, March 28, I'll be speaking at a New York Perlmongers technical meeting on the impact of Perl 5 development work on the viability of CPAN libraries. Now, I suspect that that description puts some of you to sleep right away, but ... There's a NYCBUG angle to this. For a couple of months I've been discussing with NYCBUG admin concerning the possibility of doing more testing of open-source projects on the BSDs. Ask yourself: Does your favorite open-source project test extensively on platforms other than L___x? I'll touch upon these questions in the Wednesday presentation. This will be held at: MongoDB 229 West 43 St (btw. 7th and 8th Aves -- former NY Times building) 6:30 pm You'll have to register on meetup to attend, but the meeting is otherwise free and open. https://www.meetup.com/The-New-York-Perl-Meetup-Group/events/248536785/ Thank you very much. Jim Keenan From spork at bway.net Tue Mar 27 13:20:18 2018 From: spork at bway.net (Charles Sprickman) Date: Tue, 27 Mar 2018 13:20:18 -0400 Subject: [talk] Measuring Internet Speed In-Reply-To: <1522157208.920540.1317625264.19F9C8CA@webmail.messagingengine.com> References: <1522157208.920540.1317625264.19F9C8CA@webmail.messagingengine.com> Message-ID: <15A9CBB0-6599-4EAC-B964-282C14CBE692@bway.net> > On Mar 27, 2018, at 9:26 AM, Isaac (.ike) Levy wrote: > > On Sun, Mar 25, 2018, at 4:33 PM, Ivan Rambius Ivanov wrote: >> Hello, >> >> Spectrum / TWC are constantly offering me internet service speed >> upgrades for my home. How can I measure their internet speed and >> compare the old and new services? >> >> Regards >> Ivan > > IMO, deep network performance testing gets into some existential meditations based on "what is network speed"? > > If you have access to a stable second host on the internet with adequate bandwidth for your tests: > > netperf (personal go-to) > iperf (awesome features too) > > Along with their man pages, there are tons of one-liner how-to's online for these classic tools. Measuring network speed has so many variables, that there are infinite ways to go about this depending on what you're measuring. These tools are purpose-built for testing many aspects of a line. > Depending on the machines you're using to test, simply piping data from /dev/zero to nc or something may run into bottlenecks in your hosts respective TCP buffering, as well as various internal control buffers in programs which may throttle you from various network tools (scp, etc...). While netperf and iperf are designed explicitly not to have such test-influencing bottlenecks, your OS network stack may be tuned in ways which can greatly affect the test- so if you're doing really hardcore line-speed testing, simply prepare to read and flip a *ton* of sysctls, to eliminate variables in testing (changes which will make your internet use from that machine surprisingly unusable on the network :) You can also find iperf in really weird places. Lots of embedded devices already have it (for example, all Ubiquiti airmax gear has an iperf binary installed). I even found an ethernet switch recently that had iperf available. It lurks in some strange places. Be aware of the iperf2/iperf3 incompatibility - they don?t talk to each other. Also if you?re using browser-based tests, you really have to cycle through the list of servers if you?re trying to measure beyond 100Mb/s or so. When I got FiOS Gig service at home it became really clear most test sites simply don?t have the bandwidth - even sites that were well-peered with UUNet/VZ would sometimes run out of juice beyond a few hundred Mb/s. You can tell they?re shuffling you off to a hosting facility with a very asymmetric usage pattern when you see something like 200 down, 900 up. :) For web-based you can also host your own - this one is not perfect, but it does not require flash or java: https://github.com/adolfintel/speedtest > > Additionally, to *really* test a new line, concurrent connections are a big deal depending on the connectivity technology you have, (DOCSIS/CABLE vs. FIBER vs. ATM/DSL, etc...) - even full-duplex connectivity gets really interestingly weird with some of these link-layer technologies. Tools like netperf and iperf themselves have parallel/concurrency type features, so you can test behavior of how you wish to use your line- (e.g. at home: watching a movie, while someone else in house is scp-ing files, or checking mail, or etc... All this traffic is so different in what constitutes "fast?.) Funny thing, when I upgraded at home, I just turned all QoS off. FiOS seems pretty legit as far as being able to saturate the link (at least out here, I suspect NYC is a different story). Pulling 32 streams of usenet ?news? at 80MB/s is the norm, and that?s without really trying any tweaking or trying to get two providers pulling simulataneously. But at 1Gb/s I cannot find much that will impact ssh sessions or voip. When it goes out and I fall back to 3.0/768 DSL, wowzers? I?ll also state the obvious - at high speeds, users really tend to test over their local wifi network and then freak out when they don?t see line speed (?my AP looks like a spaceship and says GIGABIT on it! Why is the internet slow!?). Charles > -- > Folks have listed some good online measurment tools already, I'd also say that Google currently has a shockingly good browser-based measurment tool, (as they collect your stats on inet performance...). I stumbled into it when I was curious about internet performance from my phone. > > Best, > .ike > > _______________________________________________ > talk mailing list > talk at lists.nycbug.org > http://lists.nycbug.org/mailman/listinfo/talk -------------- next part -------------- An HTML attachment was scrubbed... URL: From ahpook at mitnal.com Tue Mar 27 14:43:36 2018 From: ahpook at mitnal.com (Ah Pook) Date: Tue, 27 Mar 2018 14:43:36 -0400 Subject: [talk] Measuring Internet Speed In-Reply-To: <15A9CBB0-6599-4EAC-B964-282C14CBE692@bway.net> References: <1522157208.920540.1317625264.19F9C8CA@webmail.messagingengine.com> <15A9CBB0-6599-4EAC-B964-282C14CBE692@bway.net> Message-ID: On 03/27/2018 01:20 PM, Charles Sprickman wrote: > Funny thing, when I upgraded at home, I just turned all QoS off. ?FiOS > seems pretty legit as far as being able to saturate the link (at least > out here, I suspect NYC is a different story). Seems ok in Brooklyn. :) http://www.speedtest.net/result/6490165433 Agreed on the rest; I'd add that torrents can (and do) saturate the line, so it is real-world speed. From wcblawoffices at gmail.com Wed Mar 28 15:01:31 2018 From: wcblawoffices at gmail.com (William Brown) Date: Wed, 28 Mar 2018 15:01:31 -0400 Subject: [talk] talk Digest, Vol 170, Issue 7 In-Reply-To: References: Message-ID: <42C2394D-4AB3-4D07-B2BC-1CE868DC8C90@gmail.com> Hi, I agree on the NYC Bug presentation idea. I will make a submission. Thanks. Bill - manager w: Shmanagement.org > On Mar 27, 2018, at 12:00 PM, talk-request at lists.nycbug.org wrote: > > Send talk mailing list submissions to > talk at lists.nycbug.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.nycbug.org/mailman/listinfo/talk > or, via email, send a message with subject or body 'help' to > talk-request at lists.nycbug.org > > You can reach the person managing the list at > talk-owner at lists.nycbug.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of talk digest..." > > > Today's Topics: > > 1. Re: Measuring Internet Speed (Sujit K M) > 2. Re: Measuring Internet Speed (Isaac (.ike) Levy) > 3. A NYCBUG-related presentation that's not at NYCBUG > (James E Keenan) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 27 Mar 2018 17:27:47 +0530 > From: Sujit K M > To: NYCBUG List > Subject: Re: [talk] Measuring Internet Speed > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > >> On Mon, Mar 26, 2018 at 8:29 PM, Chris Snyder wrote: >> On Sun, Mar 25, 2018 at 4:33 PM, Ivan "Rambius" Ivanov >> wrote: >>> >>> >>> Spectrum / TWC are constantly offering me internet service speed >>> upgrades for my home. How can I measure their internet speed and >>> compare the old and new services? >> >> Measurement Lab is is a consortium of research, industry and public-interest >> partners dedicated to: >> >> - Providing an open, verifiable measurement platform for global network >> performance >> - Hosting the largest open Internet performance dataset on the planet >> - Creating visualizations and tools to help people make sense of Internet >> performance >> >> https://www.measurementlab.net/tests/ > > Don't know exact details looks in US This site does some measurements. > > http://www.bandwidthplace.com/ > > It won't be difficult to come from scratch a program in Python to be written. > > -- > -- Sujit K M > > blog(http://kmsujit.blogspot.com/) > > > > ------------------------------ > > Message: 2 > Date: Tue, 27 Mar 2018 09:26:48 -0400 > From: "Isaac (.ike) Levy" > To: talk at lists.nycbug.org > Subject: Re: [talk] Measuring Internet Speed > Message-ID: > <1522157208.920540.1317625264.19F9C8CA at webmail.messagingengine.com> > Content-Type: text/plain; charset="utf-8" > >> On Sun, Mar 25, 2018, at 4:33 PM, Ivan Rambius Ivanov wrote: >> Hello, >> >> Spectrum / TWC are constantly offering me internet service speed >> upgrades for my home. How can I measure their internet speed and >> compare the old and new services? >> >> Regards >> Ivan > > IMO, deep network performance testing gets into some existential meditations based on "what is network speed"? > > If you have access to a stable second host on the internet with adequate bandwidth for your tests: > > netperf (personal go-to) > iperf (awesome features too) > > Along with their man pages, there are tons of one-liner how-to's online for these classic tools. Measuring network speed has so many variables, that there are infinite ways to go about this depending on what you're measuring. These tools are purpose-built for testing many aspects of a line. > Depending on the machines you're using to test, simply piping data from /dev/zero to nc or something may run into bottlenecks in your hosts respective TCP buffering, as well as various internal control buffers in programs which may throttle you from various network tools (scp, etc...). While netperf and iperf are designed explicitly not to have such test-influencing bottlenecks, your OS network stack may be tuned in ways which can greatly affect the test- so if you're doing really hardcore line-speed testing, simply prepare to read and flip a *ton* of sysctls, to eliminate variables in testing (changes which will make your internet use from that machine surprisingly unusable on the network :) > > Additionally, to *really* test a new line, concurrent connections are a big deal depending on the connectivity technology you have, (DOCSIS/CABLE vs. FIBER vs. ATM/DSL, etc...) - even full-duplex connectivity gets really interestingly weird with some of these link-layer technologies. Tools like netperf and iperf themselves have parallel/concurrency type features, so you can test behavior of how you wish to use your line- (e.g. at home: watching a movie, while someone else in house is scp-ing files, or checking mail, or etc... All this traffic is so different in what constitutes "fast".) > > -- > Folks have listed some good online measurment tools already, I'd also say that Google currently has a shockingly good browser-based measurment tool, (as they collect your stats on inet performance...). I stumbled into it when I was curious about internet performance from my phone. > > Best, > .ike > > > > ------------------------------ > > Message: 3 > Date: Tue, 27 Mar 2018 10:46:38 -0400 > From: James E Keenan > To: talk at lists.nycbug.org > Subject: [talk] A NYCBUG-related presentation that's not at NYCBUG > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > Tomorrow night, Wednesday, March 28, I'll be speaking at a New York > Perlmongers technical meeting on the impact of Perl 5 development work > on the viability of CPAN libraries. > > Now, I suspect that that description puts some of you to sleep right > away, but ... > > There's a NYCBUG angle to this. > > For a couple of months I've been discussing with NYCBUG admin concerning > the possibility of doing more testing of open-source projects on the > BSDs. Ask yourself: Does your favorite open-source project test > extensively on platforms other than L___x? > > I'll touch upon these questions in the Wednesday presentation. This > will be held at: > > MongoDB > 229 West 43 St (btw. 7th and 8th Aves -- former NY Times building) > 6:30 pm > > You'll have to register on meetup to attend, but the meeting is > otherwise free and open. > > https://www.meetup.com/The-New-York-Perl-Meetup-Group/events/248536785/ > > Thank you very much. > Jim Keenan > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > talk mailing list > talk at lists.nycbug.org > http://lists.nycbug.org/mailman/listinfo/talk > > > ------------------------------ > > End of talk Digest, Vol 170, Issue 7 > ************************************ From kmsujit at gmail.com Fri Mar 30 10:45:31 2018 From: kmsujit at gmail.com (Sujit K M) Date: Fri, 30 Mar 2018 20:15:31 +0530 Subject: [talk] IP Addressing Message-ID: I had a use case for discussion. If I was in a network of a ISP A and run Youtube with a video. How much time Will it take for the Same Youtube application switch, I have two ISPs Connection at home, when I move to an ISP B. It is taking unbelievable less time for me make any sense. From okan at demirmen.com Fri Mar 30 11:17:59 2018 From: okan at demirmen.com (Okan Demirmen) Date: Fri, 30 Mar 2018 11:17:59 -0400 Subject: [talk] IP Addressing In-Reply-To: References: Message-ID: I do not understand the question at all. Can you restate it? On Fri, Mar 30, 2018 at 10:45 AM, Sujit K M wrote: > I had a use case for discussion. If I was in a network of a ISP A and > run Youtube with a video. How much time Will it take for the Same > Youtube application switch, I have two ISPs Connection at home, when > I move to an ISP B. It is taking unbelievable less time for me make any sense. > > _______________________________________________ > talk mailing list > talk at lists.nycbug.org > http://lists.nycbug.org/mailman/listinfo/talk From kmsujit at gmail.com Fri Mar 30 11:26:52 2018 From: kmsujit at gmail.com (Sujit K M) Date: Fri, 30 Mar 2018 20:56:52 +0530 Subject: [talk] IP Addressing In-Reply-To: References: Message-ID: On Fri, Mar 30, 2018 at 8:47 PM, Okan Demirmen wrote: > I do not understand the question at all. Can you restate it? Horizontal Lines Represent You Tube Video Playing. Horizontal dots represent pause in video. Vertical Lines represent ISP Provider Change. ___Youtube Video ___________.............................____________________________ | | Paused Video(Looks like taking only 2 seconds) ISP A ISP B My question is when a Youtube Video is played and there is an ISP change it is taking only two seconds while it is paused. Even a IP Reassignment takes 2 secs in a LAN let it to be for external network. From kmsujit at gmail.com Fri Mar 30 11:48:50 2018 From: kmsujit at gmail.com (Sujit K M) Date: Fri, 30 Mar 2018 21:18:50 +0530 Subject: [talk] IP Addressing In-Reply-To: References: Message-ID: On Fri, Mar 30, 2018 at 8:15 PM, Sujit K M wrote: > I had a use case for discussion. If I was in a network of a ISP A and > run Youtube with a video. How much time Will it take for the Same > Youtube application switch, I have two ISPs Connection at home, when > I move to an ISP B. It is taking unbelievable less time for me make any sense. Although agreed Youtube does Buffer Video and That might be reducing the apparent delay. The other angle with it is that Since IP is reassigned to ISP B, Isn't it a security issue which fooled a lame user into believing a external user can always replicate the session on an malicious computer and do in this case watch a video. From njt at ayvali.org Fri Mar 30 14:12:37 2018 From: njt at ayvali.org (N.J. Thomas) Date: Fri, 30 Mar 2018 11:12:37 -0700 Subject: [talk] IP Addressing In-Reply-To: References: Message-ID: <20180330181237.GL61112@ayvali.org> * Sujit K M [2018-03-30 20:15:31+0530]: > If I was in a network of a ISP A and run Youtube with a video. How > much time Will it take for the Same Youtube application switch, I have > two ISPs Connection at home, when I move to an ISP B. It is taking > unbelievable less time for me make any sense. If I understood correctly: - you have two ISP connections at home - you ran some random Youtube video (https://www.youtube.com/watch?v=dQw4w9WgXcQ) - this video took X seconds to start playing - you switched to the other ISP, and ran the same video - this video took Y seconds to start playing - apparently, Y is much smaller than X And you are wondering why Y takes less time than X? I would bet you that there is some caching going on there, probably at more than one level. Thomas From bobleigh at twomeeps.com Fri Mar 30 15:40:50 2018 From: bobleigh at twomeeps.com (Bob Leigh) Date: Fri, 30 Mar 2018 15:40:50 -0400 Subject: [talk] IP Addressing In-Reply-To: <20180330181237.GL61112@ayvali.org> References: <20180330181237.GL61112@ayvali.org> Message-ID: On Fri, Mar 30, 2018 at 2:12 PM, N.J. Thomas wrote: > - you ran some random Youtube video (https://www.youtube.com/ > watch?v=dQw4w9WgXcQ) > Hey! None of that! Bob who saw "Rick Astley" in Gmail's preview before clicking. does that count as being rick-rolled? -------------- next part -------------- An HTML attachment was scrubbed... URL: From _ at thomaslevine.com Fri Mar 30 16:05:51 2018 From: _ at thomaslevine.com (Thomas Levine) Date: Fri, 30 Mar 2018 20:05:51 +0000 Subject: [talk] Using separate users for different programs In-Reply-To: <20180301175559.7B0A07E4AA@mailuser.nyi.internal> References: <20180222201701.477C07E3C5@mailuser.nyi.internal> <20180224051819.E48F67E12E@mailuser.nyi.internal> <20180301175559.7B0A07E4AA@mailuser.nyi.internal> Message-ID: <20180330200551.8D291E5092@mailuser.nyi.internal> Thomas Levine writes: > Thomas Levine writes: > > Then I suppose I will write my own. > > Maybe I'll report in a few months if I wind up using it. > > https://thomaslevine.com/scm/subdo > > I surprisingly find myself using it after just a few days. I hav > e > already ported the most worrysome of the softwares that I use of > ten, > and the ports have all been very short. > > I see no future talks scheduled; would anyone like to hear about > this > in April? Since we still don't have an April meeting, I reiterate my proposal to discuss my privilege separation methodology.