- WLUG - wlug.mailman3.com

Notebooks...

by Wesley T Allen

Hi gang, Well, with the 0% financianing out there I'm seriously considering dumping my current notebook and taking all my Christmas cash to get a machine that works better with linux. I'm sick of this HP buggy BIOS that won't let linux read the thermal or battery data, even with acpi, so this'll go back to winXP for my wife, we'll dump the desktop completely, and I'll get the new machine. My question is, what's known to work with Linux. Are Toshiba's friendly? I'm not touching a compaq with a 10 foot pole, and does anyone have an HP laptop that is fully functional with linux? What about the latest Dells? Or even, gasp GATEWAY???? I checked out linux on laptops, but most of the models weren't even close so I figured I'd ask all of you... Wes

Dec. 30, 2002

No conflicts??

by Gregory Avedissian

Both my video card and the onboard sound card are assigned to IRQ11, in both windows and linux. Device Manager and KDE Control Center say that there's no conflict. Does this make sense? Thanks in advance, Greg

Dec. 27, 2002

Re: [Wlug] Color matching scanned photos vs. printed output

by Karl Hiramoto

On Fri, 27 Dec 2002, Andy Stewart wrote: > Is there any good way, other than trial and error, to fix this? Would > generating some simple test patterns help in making the proper adjustments? Trial and Error is what I've used with linux. Under Microshaft Windowz there are some Calibration tools that have come with my printer that U can use to calibrate the screen with the printer output. I've also had problems when using different types of paper. Ex. the picutre looks ok, using the el cheapo paper. Then i switch to the expensive glossy paper, and the colors look different. Is there any printer color calibration tool for linux out there? Good luck. -- ¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø Karl Hiramoto <karl(a)hiramoto.org> Work: 978-425-2090 ext 25 Cell: 508-517-4819 Personal web page: http://karl.hiramoto.org/ Freedom: http://www.technojihad.com/ Zoop Productions: http://www.zoop.org/ KTEQ Rapid City: http://www.kteq.org/ AOL IM ID = KarlH420 Yahoo_IM = karl_hiramoto ¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø It does not do to leave a live dragon out of your calculations.

Dec. 27, 2002

Color matching scanned photos vs. printed output

by Andy Stewart

Hi Everybody, I've been playing with my new toy, an Epson 1660 Photo scanner, which works very nicely with Linux. I have noticed that photos that I scan in and then print don't look the same as the original. I am using Xsane, Gimp-Print, and CUPS. If it matters, the photo is 4x6 inches, scanned at 400 DPI, and printed in 1440x720 high quallity mode. The photo was originally printed from my 3 Mpixel digital camera (2160x1440 pixels), so I believe I've used a more than sufficient DPI when scanning. I suspect the problem is that neither the scanner nor the printer is perfect, and that the cumulative effects of the transfer functions (scanner to computer to monitor to computer to printer) are causing this. Its actually worse if I let Xsane compensate for me with its automatic adjustments of gamma, brightness, and contrast. Adjusting the image on my monitor screen probably isn't going to help much since my monitor isn't perfect, nor is there any guarantee that I have it properly adjusted. Is there any good way, other than trial and error, to fix this? Would generating some simple test patterns help in making the proper adjustments? Thanks, Andy -- Andy Stewart, Founder Worcester Linux Users' Group Worcester, MA USA http://www.wlug.org

Dec. 27, 2002

Re: [Wlug] vpn behind firewall

by Michael Long

Thanks Charles, Resolving the issue in part 1 concerning my wifes vpn was resolved by upgrading the linksys firmware. After the upgrade IPSec passthrough was turned off and everything works well. The next step is to get the vpn to my office working. Mike > Well, my editor ate that one... Let's try this again. > > On Tue, Dec 24, 2002 at 05:58:15PM -0500, Michael Long wrote: > mlong> it if anyone could give me some clues or at least some intelligent > mlong> questions to ask so that I might make this thing work. It is sometimes > mlong> necessary to "help" the help desk in order that they can help you. :) > > "VPN" can mean many things... but usually it means a PPTP or IPsec > encrypted tunnel. IPsec uses port 500/udp for ISAKMP key exchange, and > IP Protocol number 50/51 for ESP/AH encryption/authentication (i.e., not > TCP or UDP). > > IPsec wasn't designed to work with the hack that is NAT (Network Address > Translation, Internet Connection Sharing), so if you are sharing one > real IP address to multiple computers with a Linksys, you can run into > issues. Basically, vendors like Linksys have hacked around the IPsec > limitation to make it sort of work through the NAT. Make sure you have > turned on the "IPsec passthrough" features of your router (NOT IPsec/VPN > endpoint). You should also look for an upgrade to the Linksys firmware > to see if it addresses your issue... It is hit-or-miss often times with > these SOHO routers. Good luck. > > mlong> Part 2: I am planning to fire up a vpn connection to my employer on > mlong> Thursday for the first time. Are there any issues running 2 vpn > mlong> connections behind a firewall. > > The IPsec through NAT hack I mentioned above usually only works with ONE > IPsec session at a time, so if both VPN's use IPsec, you may be out of > luck unless you take turns using the VPN software. On the other hand, > some vendors have figured out a way to allow multiple IPsec sessions to > work through NAT at once... > > It could be that one or both VPN's are using a technology other than > IPsec, in which case, the issues are completely different. PPTP usually > works fine through NAT, for example. There are other protocols as well, > which may or may not work through NAT. > > In addition, if they are using IPsec with a Nortel Networks Contivity > VPN switch on their end, it may have a feature called "NAT Traversal" > which wraps the entire IPsec flow in UDP packets (the administrator > chooses the port number, but Nortel recommends 10001/udp). If this is > the case, it might make sense to turn OFF any IPsec-passthrough features > of your router, so that the NAT Traversal kicks in. > > -- > Charles R. Anderson <cra(a)wpi.edu> / http://angus.ind.wpi.edu/~cra/ > PGP Key ID: 49BB5886 > Fingerprint: EBA3 A106 7C93 FA07 8E15 3AC2 C367 A0F9 49BB 5886 > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > > >

Dec. 26, 2002

Re: [Wlug] vpn behind firewall

by Charles R. Anderson

Well, my editor ate that one... Let's try this again. On Tue, Dec 24, 2002 at 05:58:15PM -0500, Michael Long wrote: mlong> it if anyone could give me some clues or at least some intelligent mlong> questions to ask so that I might make this thing work. It is sometimes mlong> necessary to "help" the help desk in order that they can help you. :) "VPN" can mean many things... but usually it means a PPTP or IPsec encrypted tunnel. IPsec uses port 500/udp for ISAKMP key exchange, and IP Protocol number 50/51 for ESP/AH encryption/authentication (i.e., not TCP or UDP). IPsec wasn't designed to work with the hack that is NAT (Network Address Translation, Internet Connection Sharing), so if you are sharing one real IP address to multiple computers with a Linksys, you can run into issues. Basically, vendors like Linksys have hacked around the IPsec limitation to make it sort of work through the NAT. Make sure you have turned on the "IPsec passthrough" features of your router (NOT IPsec/VPN endpoint). You should also look for an upgrade to the Linksys firmware to see if it addresses your issue... It is hit-or-miss often times with these SOHO routers. Good luck. mlong> Part 2: I am planning to fire up a vpn connection to my employer on mlong> Thursday for the first time. Are there any issues running 2 vpn mlong> connections behind a firewall. The IPsec through NAT hack I mentioned above usually only works with ONE IPsec session at a time, so if both VPN's use IPsec, you may be out of luck unless you take turns using the VPN software. On the other hand, some vendors have figured out a way to allow multiple IPsec sessions to work through NAT at once... It could be that one or both VPN's are using a technology other than IPsec, in which case, the issues are completely different. PPTP usually works fine through NAT, for example. There are other protocols as well, which may or may not work through NAT. In addition, if they are using IPsec with a Nortel Networks Contivity VPN switch on their end, it may have a feature called "NAT Traversal" which wraps the entire IPsec flow in UDP packets (the administrator chooses the port number, but Nortel recommends 10001/udp). If this is the case, it might make sense to turn OFF any IPsec-passthrough features of your router, so that the NAT Traversal kicks in. -- Charles R. Anderson <cra(a)wpi.edu> / http://angus.ind.wpi.edu/~cra/ PGP Key ID: 49BB5886 Fingerprint: EBA3 A106 7C93 FA07 8E15 3AC2 C367 A0F9 49BB 5886

Dec. 25, 2002

Re: [Wlug] vpn behind firewall

by Charles R. Anderson

On Tue, Dec 24, 2002 at 05:58:15PM -0500, Michael Long wrote: mlong> it if anyone could give me some clues or at least some intelligent mlong> questions to ask so that I might make this thing work. It is sometimes mlong> necessary to "help" the help desk in order that they can help you. :) "VPN" can mean many things... but usually it means a PPTP or IPsec encrypted tunnel. IPsec wasn't designed to work with the hack that is NAT (Network Address Translation, Internet Connection Sharing), so if you are sharing one real IP address with a Linksys o mlong> mlong> Part 2: I am planning to fire up a vpn connection to my employer on mlong> Thursday for the first time. Are there any issues running 2 vpn mlong> connections behind a firewall. mlong> mlong> Thanks, mlong> Mike mlong> mlong> _______________________________________________ mlong> Wlug mailing list mlong> Wlug(a)mail.wlug.org mlong> http://mail.wlug.org/mailman/listinfo/wlug -- Charles R. Anderson <cra(a)wpi.edu> / http://angus.ind.wpi.edu/~cra/ PGP Key ID: 49BB5886 Fingerprint: EBA3 A106 7C93 FA07 8E15 3AC2 C367 A0F9 49BB 5886

Dec. 25, 2002

vpn behind firewall

by Michael Long

Happy Holidays to all, I have a 2 part question concerning my particular use of vpns. I have a home network behind a Linksys firewall/router and am technically incompetent when it comes to vpn's. Part 1: The company my wife works for has upgraded her vpn software and it no longer plays well with firewalls at the client end. I have an appointment with her tech support Thursday morning but would appreciate it if anyone could give me some clues or at least some intelligent questions to ask so that I might make this thing work. It is sometimes necessary to "help" the help desk in order that they can help you. :) Part 2: I am planning to fire up a vpn connection to my employer on Thursday for the first time. Are there any issues running 2 vpn connections behind a firewall. Thanks, Mike

Dec. 24, 2002

Re: [Wlug] trusted user?

by Charles R. Anderson

On Tue, Dec 24, 2002 at 03:33:44PM -0500, Frank Sweetser wrote: fs> On Tue, Dec 24, 2002 at 07:49:18AM -0500, Bill Mills-Curran wrote: fs> > How do I control "trusted user" to allow regular user accounts access fs> > to things like the mailq command or reviewing system logs? fs> fs> sudo. It can specify which commands which users are allowed to run with fs> elevated privs. For more complex options, such as reading certain logs, fs> you'll probably want to write scripts/programs that do exactly what you want fs> to allow and allow sudo access to them. For log reading, why not just put the logs in a group? -- Charles R. Anderson <cra(a)wpi.edu> / http://angus.ind.wpi.edu/~cra/ PGP Key ID: 49BB5886 Fingerprint: EBA3 A106 7C93 FA07 8E15 3AC2 C367 A0F9 49BB 5886

Dec. 24, 2002

Re: [Wlug] X-server minutiae - Doh!

by Gregory Avedissian

If you run sax with the --auto option (I did), it wants a value for screen resolution, and it sets the color to 8-bit without asking. I ran it again, manually. 32-bit color looks much better. G. Gregory Avedissian wrote: > Now that I have X working again, some colors are different. The outline > box that appears when opening a window in fvwm2 has changed from yellow > to purple, which is nice because it's easier to see, but my cursor is > very pale gray. Anyone know how to change a cursor color? Am I nuts to > even think about messing with it? > > Greg > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > >

Dec. 24, 2002