From swaney.29 at osu.edu Wed Jul 4 19:40:55 2007 From: swaney.29 at osu.edu (BRIAN SWANEY) Date: Wed Jul 4 19:41:13 2007 Subject: [opensource] Helix Player Message-ID: <8c87c78c384e.8c384e8c87c7@osu.edu> Hello all, If anyone is still listening over the summer, I found Helix player on Automatix2 before upgrading to Fiesty (which doesn't seem to support it). Anyway, I shamefully regret my novice assumption in its being open source, and found it copyrighted by my favorite (not!) media company, RealNetworks. Does anyone know if their general rule of including spyware bundles (I imagine so) still applies, and if so, how to remove them if an uninstallation doesn't do the trick? Also, where might I find whatever the unfamiliar name for RealAlternative, or anything else that plays RealMedia? -Brian Swaney From fritts.11 at osu.edu Wed Jul 4 20:47:22 2007 From: fritts.11 at osu.edu (AP Fritts) Date: Wed Jul 4 20:47:43 2007 Subject: [opensource] Helix Player In-Reply-To: <8c87c78c384e.8c384e8c87c7@osu.edu> References: <8c87c78c384e.8c384e8c87c7@osu.edu> Message-ID: <793414560707041747v4ca8e837oc1d1a26ac1a1bcf7@mail.gmail.com> Hi Brian, You can try to use VLC media player. Your spam blocker returned my first message, so I decided to leave out the link. I hope you can read this. AP On 7/4/07, BRIAN SWANEY wrote: > > Hello all, > > If anyone is still listening over the summer, I found Helix player on > Automatix2 before upgrading to Fiesty (which doesn't seem to support it). > Anyway, I shamefully regret my novice assumption in its being open source, > and found it copyrighted by my favorite (not!) media company, RealNetworks. > Does anyone know if their general rule of including spyware bundles (I > imagine so) still applies, and if so, how to remove them if an > uninstallation doesn't do the trick? Also, where might I find whatever the > unfamiliar name for RealAlternative, or anything else that plays RealMedia? > > -Brian Swaney > > _______________________________________________ > Opensource mailing list > Opensource@cse.ohio-state.edu > http://mail.cse.ohio-state.edu/mailman/listinfo/opensource > -- AP Fritts Mobile: 330-730-1404 AIM: apfritts oSTEM at Ohio State, President GLBT Student Leaders, Treasurer HRC@OSU, Treasurer ChallengeX, Member Open Source Club, Member -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.cse.ohio-state.edu/mailman/private/opensource/attachments/20070704/4ed68b5c/attachment.html From wrl at express.org Wed Jul 4 21:12:20 2007 From: wrl at express.org (William R. Lorenz) Date: Wed Jul 4 21:12:40 2007 Subject: [opensource] Helix Player In-Reply-To: <793414560707041747v4ca8e837oc1d1a26ac1a1bcf7@mail.gmail.com> References: <8c87c78c384e.8c384e8c87c7@osu.edu> <793414560707041747v4ca8e837oc1d1a26ac1a1bcf7@mail.gmail.com> Message-ID: Hey, Real Alternative on Windows, too. I also like VLC on Linux. On Wed, 4 Jul 2007, AP Fritts wrote: > Hi Brian, > > You can try to use VLC media player. Your spam blocker returned my first > message, so I decided to leave out the link. I hope you can read this. > > AP > > On 7/4/07, BRIAN SWANEY wrote: >> >> Hello all, >> >> If anyone is still listening over the summer, I found Helix player on >> Automatix2 before upgrading to Fiesty (which doesn't seem to support it). >> Anyway, I shamefully regret my novice assumption in its being open source, >> and found it copyrighted by my favorite (not!) media company, >> RealNetworks. >> Does anyone know if their general rule of including spyware bundles (I >> imagine so) still applies, and if so, how to remove them if an >> uninstallation doesn't do the trick? Also, where might I find whatever the >> unfamiliar name for RealAlternative, or anything else that plays >> RealMedia? >> >> -Brian Swaney >> >> _______________________________________________ >> Opensource mailing list >> Opensource@cse.ohio-state.edu >> http://mail.cse.ohio-state.edu/mailman/listinfo/opensource >> > > > > -- William R. Lorenz From swaney.29 at osu.edu Thu Jul 5 17:39:52 2007 From: swaney.29 at osu.edu (BRIAN SWANEY) Date: Thu Jul 5 17:40:25 2007 Subject: [opensource] Helix Player Message-ID: <14083013c4a4.13c4a4140830@osu.edu> Sorry about that. I have a fail-safe so I can see details about blocked messages if their score is low enough, and if need be, recover them. I don't want to say why publicly, but you should have been accepted. Your unrecognized address from outside school (gmail.com) tripped the filters; they are mostly white/black list and string filters, so a link would have little impact. Anyway, I whitelisted your address so you won't get filtered again (if you do, lavagolemking@aol.com is less strict, so tell me your address there, and I'll exempt it). For future reference, it automatically accepts any address from the school, bypassing all the rules. I don't want to publicly describe it, because that would leave me open to spammers, with little means to block them, so I'll reply personally. As for VLC, yes that is my favorite media player. I try to configure that MediaPlayerConnectivity Firefox plugin to play any media outside the browser and into VLC (doesn't currently work to well, so I just read the source, find out where it's coming from, "wget" it, and play it in VLC). RealMedia is one of the few things VLC will play. It plays protected DVDs, but not RealMedia. That's why I asked about Real Alternative. I was mostly worried about spyware residue, as opposed to playing RealMedia files. I know that some programs with these bundles leave the spyware behind when you uninstall them (in the cases when they can be uninstalled), and I'm worried about if that is the case with Helix, and if anyone knows how to disable it. I made good use out of SpyBot to block RealSpy, as I like to call it, in Windows way back (find and disable the realsched.exe directory in msconfig in safe mode, then block its registry change with TeaTimer.exe to keep it from regenerating), but I don't think that's an option in Linux. -Brian Swaney ----- Original Message ----- From: AP Fritts Date: Wednesday, July 4, 2007 8:47 pm Subject: Re: [opensource] Helix Player > Hi Brian, > > You can try to use VLC media player. Your spam blocker returned my > firstmessage, so I decided to leave out the link. I hope you can > read this. > > AP > > On 7/4/07, BRIAN SWANEY wrote: > > > > Hello all, > > > > If anyone is still listening over the summer, I found Helix > player on > > Automatix2 before upgrading to Fiesty (which doesn't seem to > support it). > > Anyway, I shamefully regret my novice assumption in its being > open source, > > and found it copyrighted by my favorite (not!) media company, > RealNetworks.> Does anyone know if their general rule of including > spyware bundles (I > > imagine so) still applies, and if so, how to remove them if an > > uninstallation doesn't do the trick? Also, where might I find > whatever the > > unfamiliar name for RealAlternative, or anything else that plays > RealMedia?> > > -Brian Swaney > > > > _______________________________________________ > > Opensource mailing list > > Opensource@cse.ohio-state.edu > > http://mail.cse.ohio-state.edu/mailman/listinfo/opensource > > > > > > -- > AP Fritts > Mobile: 330-730-1404 > AIM: apfritts > > oSTEM at Ohio State, President > GLBT Student Leaders, Treasurer > HRC@OSU, Treasurer > ChallengeX, Member > Open Source Club, Member > > > -- > BEGIN-ANTISPAM-VOTING-LINKS > ------------------------------------------------------ > > Teach CanIt if this mail (ID 356212729) is spam: > Spam: > https://antispam.osu.edu/b.php?c=s&i=356212729&m=ee228b08b2e3Not > spam: https://antispam.osu.edu/b.php?c=n&i=356212729&m=ee228b08b2e3 > Forget vote: > https://antispam.osu.edu/b.php?c=f&i=356212729&m=ee228b08b2e3------- > ----------------------------------------------- > END-ANTISPAM-VOTING-LINKS > > From swaney.29 at osu.edu Thu Jul 5 18:10:19 2007 From: swaney.29 at osu.edu (BRIAN SWANEY) Date: Thu Jul 5 18:10:39 2007 Subject: [opensource] FreeDisk to Promote Open Source Group Message-ID: <14e1ff14f526.14f52614e1ff@osu.edu> I have completed the ISO for a collection of Windows open source software. It is in the /home/swaneybr directory, for those who have SSH access to the Open Source lab. When inserted, it will start up the default web browser and list out the categories of programs it has to offer in HTML. I believe this is the final copy I'll need to make, as I searched pretty hard for bad links and whatnot, but if you anything amiss, let me know. I plan on passing out copies of this CD at the involvement fair. If anyone has blank CDs to contribute, I have a fairly fast CD burner. -Brian Swaney From wrl at express.org Sun Jul 8 22:36:24 2007 From: wrl at express.org (William R. Lorenz) Date: Sun Jul 8 22:36:46 2007 Subject: [opensource] Links to Remove from Club's Blog In-Reply-To: <14e1ff14f526.14f52614e1ff@osu.edu> References: <14e1ff14f526.14f52614e1ff@osu.edu> Message-ID: Hey Guys, Someone might want to remove bad comments from the club's blog: http://opensource.cse.ohio-state.edu/?q=linuxfest2006 I was transferring the Ohio LinuxFest domain to the other co-founder (I don't have much involvement anymore) and noticed the linked OSUOSC page. There's probably more of those out there on other entries. CAPTCHA? ;) Anyways, someone might want to take care of that for the group. -- William R. Lorenz lorenz.50@osu.edu From dietz.72 at osu.edu Mon Jul 9 08:21:32 2007 From: dietz.72 at osu.edu (Peter Dietz) Date: Mon Jul 9 08:21:54 2007 Subject: [opensource] Links to Remove from Club's Blog In-Reply-To: <240a31830707082026y6049a1a9v4713c11ce76d3688@mail.gmail.com> References: <14e1ff14f526.14f52614e1ff@osu.edu> <240a31830707082026y6049a1a9v4713c11ce76d3688@mail.gmail.com> Message-ID: <240a31830707090521u52c09bc7u1af99654006a707f@mail.gmail.com> Hey Everyone, I went ahead and disabled the entire commenting system. I'll be the first to say, that I'm glad that someone found a use for our site, but our site isn't here for spam commenting. My proposed method of CAPTCHA, or Completely Automated Public Turing test to tell Computers and Humans Apart, would be to have trivia questions imbedded inside of the images, and then the human has to answer the question, as it should be fairly easy for a person to answer it. Possible questions might be: What is the greatest school in the world? What is the worst school? What is the name of that evil corporation? Which company does no evil? Write the perl script to alphabetically sort unique entries of a set... btw, Luis von Ahn, the deviser of captcha was in this months issue of WIRED magazine, and he is planning on releasing a few "games" this summer that use the processing power of human minds that are very skilled at answering captcha questions or labeling images, and will do the work for free, so long as you can make it entertaining enough for someone to do it. Interesting read Have a great summer On 7/8/07, William R. Lorenz wrote: > > > > Hey Guys, > > > > Someone might want to remove bad comments from the club's blog: > > > > http://opensource.cse.ohio-state.edu/?q=linuxfest2006 > > > > I was transferring the Ohio LinuxFest domain to the other co-founder (I > > don't have much involvement anymore) and noticed the linked OSUOSC page. > > > > There's probably more of those out there on other entries. CAPTCHA? ;) > > > > Anyways, someone might want to take care of that for the group. > > > > -- > > William R. Lorenz > > lorenz.50@osu.edu > > _______________________________________________ > > Opensource mailing list > > Opensource@cse.ohio-state.edu > > http://mail.cse.ohio-state.edu/mailman/listinfo/opensource > > > > > > -- > == > Peter Dietz > 703.391-0305 - office > 440.537-4945 - cell > Intern - Video Capacity Creation - Verizon Telecom > > Computer Science & Engineering -- The Ohio State University -- == Peter Dietz 703.391-0305 - office 440.537-4945 - cell Intern - Video Capacity Creation - Verizon Telecom Computer Science & Engineering -- The Ohio State University -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.cse.ohio-state.edu/mailman/private/opensource/attachments/20070709/d5838f61/attachment.html From swaney.29 at osu.edu Sun Jul 29 01:10:19 2007 From: swaney.29 at osu.edu (BRIAN SWANEY) Date: Sun Jul 29 01:10:42 2007 Subject: [opensource] Trouble loading OSU page in Linux Message-ID: I'm having difficulty loading the financial aide website ( http://sfa.osu.edu ) in Linux (by Firefox). It seems to be mostly isolated to Linux, and because I use a non-Windows/non-Mac machine, the person at OIT refused to help me or even acknowledge that there could be anything wrong with the site. Another friend, who also uses Linux, encountered the same problem. For troubleshooting, I tried loading Windows into a virtual machine and accessing it through Firefox/IE6, and got the same problem, but it loads fine on "pure" Windows machines. My network settings seem ok, and I'm able to load just about any other page with "osu.edu" or "ohio-state.edu" strings in the URL with no difficulty whatsoever. The IT person refused to acknowledge that there could possibly be a problem with the page, and insists that it is the "poorly configured browser and OS I'm using", despite that everything else loads just fine, and that I was able to load the page about a week prior to the issue without any significant changes to my browser settings. Has anyone else experienced this issue or have any advice? I really don't want to have to separately boot another OS whenever I want to see my financial aide statement. For anyone who asks, I'm using Firefox 2.0.0.5, and Ubuntu 7.04. Standard DHCP network configuration, with no proxies or anything. I'm also curious if it's only Ubuntu (which would mean it's an OS problem) or other Linux flavors (meaning it's a server problem). -Brian Swaney From equality72521 at gmail.com Sun Jul 29 01:52:03 2007 From: equality72521 at gmail.com (Sean Carrick) Date: Sun Jul 29 01:52:24 2007 Subject: [opensource] Trouble loading OSU page in Linux In-Reply-To: References: Message-ID: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> This should fix the problem, it is with 2.6.18+'s tcp window scaling not interacting properly with the sfa.osu.edu server or something in between. Vista has the same problem sometimes, it can be fixed by running the following command as root: echo 0 > /proc/sys/net/ipv4/tcp_window_scaling ~Sean Carrick On 7/29/07, BRIAN SWANEY wrote: > I'm having difficulty loading the financial aide website ( http://sfa.osu.edu ) in Linux (by Firefox). It seems to be mostly isolated to Linux, and because I use a non-Windows/non-Mac machine, the person at OIT refused to help me or even acknowledge that there could be anything wrong with the site. Another friend, who also uses Linux, encountered the same problem. > > For troubleshooting, I tried loading Windows into a virtual machine and accessing it through Firefox/IE6, and got the same problem, but it loads fine on "pure" Windows machines. My network settings seem ok, and I'm able to load just about any other page with "osu.edu" or "ohio-state.edu" strings in the URL with no difficulty whatsoever. > > The IT person refused to acknowledge that there could possibly be a problem with the page, and insists that it is the "poorly configured browser and OS I'm using", despite that everything else loads just fine, and that I was able to load the page about a week prior to the issue without any significant changes to my browser settings. Has anyone else experienced this issue or have any advice? I really don't want to have to separately boot another OS whenever I want to see my financial aide statement. For anyone who asks, I'm using Firefox 2.0.0.5, and Ubuntu 7.04. Standard DHCP network configuration, with no proxies or anything. I'm also curious if it's only Ubuntu (which would mean it's an OS problem) or other Linux flavors (meaning it's a server problem). > > > -Brian Swaney > > _______________________________________________ > Opensource mailing list > Opensource@cse.ohio-state.edu > http://mail.cse.ohio-state.edu/mailman/listinfo/opensource > From paul at paulbetts.org Sun Jul 29 05:05:39 2007 From: paul at paulbetts.org (Paul Betts) Date: Sun Jul 29 05:06:23 2007 Subject: [opensource] Trouble loading OSU page in Linux In-Reply-To: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> References: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> Message-ID: <46AC5863.10604@paulbetts.org> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Sean Carrick wrote: > This should fix the problem, it is with 2.6.18+'s tcp window scaling > not interacting properly with the sfa.osu.edu server or something in > between. Vista has the same problem sometimes, it can be fixed by > running the following command as root: > > echo 0 > /proc/sys/net/ipv4/tcp_window_scaling > How in the world did you figure that out - -- Paul Betts -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGrFhjLaH6prIfSccRArILAJ9qwPvQ9OeM57ug5O7xNai8UQxjCwCdGJfu nYjUMnN3DmvcVXlfQUT9+ks= =XLP0 -----END PGP SIGNATURE----- From lee.2817 at osu.edu Sun Jul 29 10:47:04 2007 From: lee.2817 at osu.edu (Sean Lee) Date: Sun Jul 29 10:47:31 2007 Subject: [opensource] Trouble loading OSU page in Linux In-Reply-To: <46AC5863.10604@paulbetts.org> References: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> <46AC5863.10604@paulbetts.org> Message-ID: On 7/29/07, Paul Betts wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Sean Carrick wrote: > > This should fix the problem, it is with 2.6.18+'s tcp window scaling > > not interacting properly with the sfa.osu.edu server or something in > > between. Vista has the same problem sometimes, it can be fixed by > > running the following command as root: > > > > echo 0 > /proc/sys/net/ipv4/tcp_window_scaling > > > > How in the world did you figure that out > > - -- > Paul Betts > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.7 (Darwin) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFGrFhjLaH6prIfSccRArILAJ9qwPvQ9OeM57ug5O7xNai8UQxjCwCdGJfu > nYjUMnN3DmvcVXlfQUT9+ks= > =XLP0 > -----END PGP SIGNATURE----- > _______________________________________________ > Opensource mailing list > Opensource@cse.ohio-state.edu > http://mail.cse.ohio-state.edu/mailman/listinfo/opensource > I can't say how Sean figured that out, but I came to that conclusion after convincing OSU to send me logs for when I was accessing those websites. You would see that your computer just stops responding after its window. -- Thanks, Sean Lee (c) 614-218-4533 lee.2817@osu.edu Chemical and Biomolecular Engineering FEH Student The Ohio State University -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.cse.ohio-state.edu/mailman/private/opensource/attachments/20070729/e8360b51/attachment.html From fritts.11 at osu.edu Sun Jul 29 16:30:58 2007 From: fritts.11 at osu.edu (AP Fritts) Date: Sun Jul 29 16:31:21 2007 Subject: [opensource] Trouble loading OSU page in Linux In-Reply-To: References: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> <46AC5863.10604@paulbetts.org> Message-ID: <793414560707291330t79c24293p495ab7c24004caf9@mail.gmail.com> I have the same problem sometimes...but with the registrar's website. On 7/29/07, Sean Lee wrote: > > > > On 7/29/07, Paul Betts wrote: > > > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > Sean Carrick wrote: > > > This should fix the problem, it is with 2.6.18+'s tcp window scaling > > > not interacting properly with the sfa.osu.edu server or something in > > > between. Vista has the same problem sometimes, it can be fixed by > > > running the following command as root: > > > > > > echo 0 > /proc/sys/net/ipv4/tcp_window_scaling > > > > > > > How in the world did you figure that out > > > > - -- > > Paul Betts > > -----BEGIN PGP SIGNATURE----- > > Version: GnuPG v1.4.7 (Darwin) > > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > > > iD8DBQFGrFhjLaH6prIfSccRArILAJ9qwPvQ9OeM57ug5O7xNai8UQxjCwCdGJfu > > nYjUMnN3DmvcVXlfQUT9+ks= > > =XLP0 > > -----END PGP SIGNATURE----- > > _______________________________________________ > > Opensource mailing list > > Opensource@cse.ohio-state.edu > > http://mail.cse.ohio-state.edu/mailman/listinfo/opensource > > > > I can't say how Sean figured that out, but I came to that conclusion after > convincing OSU to send me logs for when I was accessing those websites. You > would see that your computer just stops responding after its window. > > -- > > Thanks, > > Sean Lee > (c) 614-218-4533 > lee.2817@osu.edu > Chemical and Biomolecular Engineering > FEH Student > The Ohio State University > _______________________________________________ > Opensource mailing list > Opensource@cse.ohio-state.edu > http://mail.cse.ohio-state.edu/mailman/listinfo/opensource > > -- AP Fritts Mobile: 330-730-1404 AIM: apfritts oSTEM at Ohio State, President ChallengeX, Member GLBT Student Leaders, Member HRC@OSU, Member Open Source Club, Member -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.cse.ohio-state.edu/mailman/private/opensource/attachments/20070729/450a5b48/attachment.html From wrl at express.org Sun Jul 29 17:42:16 2007 From: wrl at express.org (William R. Lorenz) Date: Sun Jul 29 17:42:39 2007 Subject: [opensource] Trouble loading OSU page in Linux In-Reply-To: <793414560707291330t79c24293p495ab7c24004caf9@mail.gmail.com> References: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> <46AC5863.10604@paulbetts.org> <793414560707291330t79c24293p495ab7c24004caf9@mail.gmail.com> Message-ID: Hey Guys, See below for an older take on this direct from OIT, although the note I have about it pertains to Vista, in particular. Same basics, though. http://8help.osu.edu/3253.html On Sun, 29 Jul 2007, AP Fritts wrote: > I have the same problem sometimes...but with the registrar's website. >>>> This should fix the problem, it is with 2.6.18+'s tcp window scaling >>>> not interacting properly with the sfa.osu.edu server or something in >>>> between. Vista has the same problem sometimes, it can be fixed by >>>> running the following command as root: >>>> >>>> echo 0 > /proc/sys/net/ipv4/tcp_window_scaling -- William R. Lorenz From wrl at express.org Sun Jul 29 19:58:10 2007 From: wrl at express.org (William R. Lorenz) Date: Sun Jul 29 19:58:33 2007 Subject: [opensource] Trouble loading OSU page in Linux In-Reply-To: <03E8FFDE-2FCB-4A1F-8DEA-9E5BAD7C0687@osu.edu> References: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> <46AC5863.10604@paulbetts.org> <793414560707291330t79c24293p495ab7c24004caf9@mail.gmail.com> <03E8FFDE-2FCB-4A1F-8DEA-9E5BAD7C0687@osu.edu> Message-ID: Hey Seth, Just out of curiosity, is there a solution to while using OpenBSD's pf, or will you guys be using something in place of OpenBSD/pf, instead? I tried to Google for a pf window size fix but didn't see anything immediately. I'm curious if there's a simple pf filter rules adjustment for this? On Sun, 29 Jul 2007, Seth Hall wrote: > The problem is primarily misconfigured firewalls. The firewall that our > group sells is based on OpenBSD and it uses pf which can't track the window > size directly if it doesn't notice the window size that was set during the > syn + syn/ack handshake. We really need to check into all of the firewalls > out there and get them reconfigured, but it's hard to find time sometimes. > > .Seth > > > On Jul 29, 2007, at 5:42 PM, William R. Lorenz wrote: > >> Hey Guys, >> >> See below for an older take on this direct from OIT, although the note I >> have about it pertains to Vista, in particular. Same basics, though. >> >> http://8help.osu.edu/3253.html >> >> On Sun, 29 Jul 2007, AP Fritts wrote: >> >> > I have the same problem sometimes...but with the registrar's website. >> >> > > > > This should fix the problem, it is with 2.6.18+'s tcp window >> > > > > scaling not interacting properly with the sfa.osu.edu server or >> > > > > something in between. Vista has the same problem sometimes, it can >> > > > > be fixed by running the following command as root: >> > > > > >> > > > > echo 0 > /proc/sys/net/ipv4/tcp_window_scaling >> >> -- >> William R. Lorenz >> _______________________________________________ >> Opensource mailing list >> Opensource@cse.ohio-state.edu >> http://mail.cse.ohio-state.edu/mailman/listinfo/opensource > > --- > Seth Hall > Network Security - Office of the CIO > The Ohio State University > Phone: 614-292-9721 > > > -- William R. Lorenz From seth at net.ohio-state.edu Sun Jul 29 20:01:40 2007 From: seth at net.ohio-state.edu (Seth Hall) Date: Sun Jul 29 20:02:08 2007 Subject: [opensource] Trouble loading OSU page in Linux In-Reply-To: References: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> <46AC5863.10604@paulbetts.org> <793414560707291330t79c24293p495ab7c24004caf9@mail.gmail.com> <03E8FFDE-2FCB-4A1F-8DEA-9E5BAD7C0687@osu.edu> Message-ID: Heh, my stupid message to the list bounced. It's pretty straight forward to get pf to handle window scaling correctly. All you need to do is set 'flags S/SA keep state' on any rule that messes with TCP packets. That will make pf catch the window scaling and pay attention to it when the time comes. .Seth On Jul 29, 2007, at 7:58 PM, William R. Lorenz wrote: > Hey Seth, > > Just out of curiosity, is there a solution to while using OpenBSD's > pf, or will you guys be using something in place of OpenBSD/pf, > instead? I tried to Google for a pf window size fix but didn't see > anything immediately. > > I'm curious if there's a simple pf filter rules adjustment for this? > > On Sun, 29 Jul 2007, Seth Hall wrote: > >> The problem is primarily misconfigured firewalls. The firewall >> that our group sells is based on OpenBSD and it uses pf which >> can't track the window size directly if it doesn't notice the >> window size that was set during the syn + syn/ack handshake. We >> really need to check into all of the firewalls out there and get >> them reconfigured, but it's hard to find time sometimes. >> >> .Seth >> >> >> On Jul 29, 2007, at 5:42 PM, William R. Lorenz wrote: >> >>> Hey Guys, >>> See below for an older take on this direct from OIT, although the >>> note I have about it pertains to Vista, in particular. Same >>> basics, though. >>> >>> http://8help.osu.edu/3253.html >>> On Sun, 29 Jul 2007, AP Fritts wrote: >>> > I have the same problem sometimes...but with the registrar's >>> website. >>> > > > > This should fix the problem, it is with 2.6.18+'s tcp >>> window > > > > scaling not interacting properly with the >>> sfa.osu.edu server or > > > > something in between. Vista has >>> the same problem sometimes, it can > > > > be fixed by running >>> the following command as root: >>> > > > > > > > > echo 0 > /proc/sys/net/ipv4/tcp_window_scaling >>> -- >>> William R. Lorenz >>> _______________________________________________ >>> Opensource mailing list >>> Opensource@cse.ohio-state.edu >>> http://mail.cse.ohio-state.edu/mailman/listinfo/opensource >> >> --- >> Seth Hall >> Network Security - Office of the CIO >> The Ohio State University >> Phone: 614-292-9721 >> >> >> > > -- > William R. Lorenz From kremit at wrpn.net Sun Jul 29 21:36:26 2007 From: kremit at wrpn.net (Wesley Haines) Date: Sun Jul 29 21:36:57 2007 Subject: [opensource] Trouble loading OSU page in Linux In-Reply-To: References: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> <46AC5863.10604@paulbetts.org> <793414560707291330t79c24293p495ab7c24004caf9@mail.gmail.com> <03E8FFDE-2FCB-4A1F-8DEA-9E5BAD7C0687@osu.edu> Message-ID: <1185759386.15594.16.camel@Kremit> On Sun, 2007-07-29 at 20:01 -0400, Seth Hall wrote: > Heh, my stupid message to the list bounced. > > It's pretty straight forward to get pf to handle window scaling > correctly. All you need to do is set 'flags S/SA keep state' on any > rule that messes with TCP packets. That will make pf catch the > window scaling and pay attention to it when the time comes. Hey Seth, As far as I know, we've checked and re-checked the 'flags state' on the firewall over at the Byrd Polar Research Center and it hasn't fixed the problem. I remember reading about a window scaling bug in OpenBSD 3.2 or 3.3's network stack, whichever one is currently used on that firewall, so that may apply here. I don't know much about pf though (not as much as iptables), so I'm going to learn more tomorrow and see if Tom and I can look over the rulesets again. I would ask to _please_ make this a high-priority thing to fix. I'm sure there are bigger security issues that take precedence, but within the next month new and returning students will be back on campus. A good chunk are going to have new systems running Vista, and the smaller (but still sizable) desktop Linux crowd is there too. The firewall in front of the Registrar's website is probably the most important one to get fixed, IMHO. Everytime I need to access that site, or the Byrd Center's website from home, I have to make sure to revert my window scaling settings. Thanks! ============================================================ Wesley Haines Network Administrator Webmaster WRPN Internet Services weatherUSA.net http://wrpn.net/ http://www.weatherusa.net/ ============================================================ From jonsafari at ling.ohio-state.edu Mon Jul 30 10:46:46 2007 From: jonsafari at ling.ohio-state.edu (Jon Dehdari) Date: Mon Jul 30 10:47:16 2007 Subject: [opensource] Trouble loading OSU page in Linux In-Reply-To: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> References: <41b976f00707282252u5a3e5557me39b2506480ce727@mail.gmail.com> Message-ID: <20070730144646.GA25173@ling.ohio-state.edu> On Sun, Jul 29, 2007 at 12:52:03AM -0500, Sean Carrick wrote: > This should fix the problem, it is with 2.6.18+'s tcp window scaling > not interacting properly with the sfa.osu.edu server or something in > between. Vista has the same problem sometimes, it can be fixed by > running the following command as root: > > echo 0 > /proc/sys/net/ipv4/tcp_window_scaling An alternative solution is: sudo echo 'net.ipv4.tcp_window_scaling=0' >> /etc/sysctl.conf -Jon D. > On 7/29/07, BRIAN SWANEY wrote: > > I'm having difficulty loading the financial aide website ( http://sfa.osu.edu ) in Linux (by Firefox). It seems to be mostly isolated to Linux, and because I use a non-Windows/non-Mac machine, the person at OIT refused to help me or even acknowledge that there could be anything wrong with the site. Another friend, who also uses Linux, encountered the same problem. > > > > For troubleshooting, I tried loading Windows into a virtual machine and accessing it through Firefox/IE6, and got the same problem, but it loads fine on "pure" Windows machines. My network settings seem ok, and I'm able to load just about any other page with "osu.edu" or "ohio-state.edu" strings in the URL with no difficulty whatsoever. > > > > The IT person refused to acknowledge that there could possibly be a problem with the page, and insists that it is the "poorly configured browser and OS I'm using", despite that everything else loads just fine, and that I was able to load the page about a week prior to the issue without any significant changes to my browser settings. Has anyone else experienced this issue or have any advice? I really don't want to have to separately boot another OS whenever I want to see my financial aide statement. For anyone who asks, I'm using Firefox 2.0.0.5, and Ubuntu 7.04. Standard DHCP network configuration, with no proxies or anything. I'm also curious if it's only Ubuntu (which would mean it's an OS problem) or other Linux flavors (meaning it's a server problem). > > > > > > -Brian Swaney > >