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Possible sendmail attack?
by Dick Goodman Jan. 12, 2007

Jan. 12, 2007

I have four servers on 3 different DSL lines running RedHat 7.3 with sendmail 8.11.6 I was on vacation at the time, but mid-day (13:00) on January 9th all of them started behaving wierdly. Instead of the occassional email, perhaps 95% of all incoming emails now show in the log as follows: Jan 9 09:41:17 bach sendmail[25179]: NOQUEUE: mail5.schaeffer.com [24.106.95.27] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA Jan 11 00:02:12 bach sendmail[14018]: NOQUEUE: h11009.upc-h.chello.nl [62.194.11.9] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA Jan 11 00:10:44 bach sendmail[14127]: NOQUEUE: bay0-omc2-s35.bay0.hotmail.com [65.54.246.171] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA Jan 11 00:13:23 bach sendmail[14148]: NOQUEUE: root@localhost did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA Jan 11 00:13:50 bach sendmail[14151]: NOQUEUE: 84.95.106.53.cable.012.net.il [84.95.106.53] did notissue MAIL/EXPN/VRFY/ETRN during connection to MTA The first one is legitimate mail, the others appear to be spam Much of the 50K pieces/month of spam I get are being trapped at the server in this manner before even getting to my spam filters (a good thing), but while some legitimate email is getting through, some is being rejected with this kind of message. Does anyone (a) have any idea what's happening here (b) have any idea how to fix it. Need more info? Just ask. Dick

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Re: [Wlug] GIMP Question
by Mike Leo Jan. 12, 2007

Jan. 12, 2007

when anyone asks for help with pictures, i always mention image magic http://www.imagemagick.org/script/index.php if the two parts are different enough, i'm sure imagemagick can seperate them for you. ----- Original Message ---- From: "dulsi(a)identicalsoftware.com" <dulsi(a)identicalsoftware.com> To: wlug(a)mail.wlug.org Sent: Wednesday, January 10, 2007 10:33:38 PM Subject: [Wlug] GIMP Question Any GIMP experts here? Is there a way to extract the differences between two images? I have an image of just a background and an image of item on said background. I'd like to get the image of just the item. It wouldn't be hard to write a program to do it but I figured gimp might already have it. Dennis Payne dulsi(a)identicalsoftware.com _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

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GIMP Question
by dulsi＠identicalsoftware.com Jan. 11, 2007

Jan. 11, 2007

Any GIMP experts here? Is there a way to extract the differences between two images? I have an image of just a background and an image of item on said background. I'd like to get the image of just the item. It wouldn't be hard to write a program to do it but I figured gimp might already have it. Dennis Payne dulsi(a)identicalsoftware.com

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Topic for next Thursday
by Mike Perry Jan. 9, 2007

Jan. 9, 2007

So what's the topic? ~Mike

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REMINDER: Upcoming Meeting Thurs Jan 7, 2007
by Andy Stewart Jan. 9, 2007

Jan. 9, 2007

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 HI Everybody, This is your monthly reminder (hand generated) regarding our upcoming WLUG meeting, to be held on Thursday, January 7th, 2007, at 7:00 PM in the Access Grid Room on the WPI campus in Worcester, MA USA. Many of you have suggested some good topics in our recent email threads. I propose that this meeting be a round table discussion of those and any other topics of interest. I'll bring my new laptop for discussion as well. It is a Linux Certified LC2464T running Kubuntu. However, I hope somebody has a DVI-SVGA adapter which I can borrow for the meeting, since I don't yet have one. Since this is my first experience with a Debian type of distribution, I could offer my first impressions. More info here: http://www.linuxcertified.com/linux-laptop-lc2464t.html If the discussion runs dry, ask me if I passed my Amateur Radio technician exam (which I'm taking on Wednesday). I'm curious to see what I can do with this and Linux. I can also give an update on the kernel device driver that I'm writing for the Delcom USB I/O demo board. I am planning to do a full presentation on this sometime soon, after I get more stuff working. A couple of simple features are working right now. Perhaps I'll do this for either the February or March meeting. More info here: http://www.delcom-eng.com/productdetails.asp?productnum=802004 As always, we'll adjourn to the Tech Pizza Restaurant on Highland Street for some discussion afterwards. All are welcome to attend! See ya later, and Happy New Year! Andy - -- Andy Stewart, Founder Worcester Linux Users' Group Worcester, MA, USA http://www.wlug.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFFowvsHl0iXDssISsRArxgAJoCdu40R3NGK/cVkRPAomzSSZJcCQCfZ7Sx JYMDiYEQjmETv2GfHbbbDqY= =iIYN -----END PGP SIGNATURE-----

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Re: [Wlug] Topic idea for future meeting
by Mike Leo Jan. 7, 2007

Jan. 7, 2007

Yup....and I know Andy is as well.. I love talking about VMWare so i don't mind at all. ----- Original Message ---- From: Doug Chamberlin <dougchamberlin(a)earthlink.net> To: Worcester Linux Users Group <wlug(a)mail.wlug.org> Cc: Worcester Linux Users Group <wlug(a)mail.wlug.org> Sent: Sunday, January 7, 2007 4:01:46 PM Subject: [Wlug] Topic idea for future meeting Anyone using VMWare Workstation hosted on Linux? I'd be interested in an installation how-to with tips and tricks. _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

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Topic idea for future meeting
by Doug Chamberlin Jan. 7, 2007

Jan. 7, 2007

Anyone using VMWare Workstation hosted on Linux? I'd be interested in an installation how-to with tips and tricks.

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Re: [Wlug] Topic for next Thursday
by Mike Jan. 7, 2007

Jan. 7, 2007

I've been interesting in setting up a MythTV box as well. ~Mike <quote who="Adam Keck"> > Hello All, > > What about a MythTV discussion? I want to create a Linux media > management/playback system and would like to hear others' experiences. > > -Adam > > On 1/4/07, Andy Stewart <andystewart(a)comcast.net> wrote: >> >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Mike Perry wrote: >> > So what's the topic? >> > >> > ~Mike >> >> HI Mike, >> >> There isn't one....yet. One person asked me if we could discuss the >> basics of setting up a network. I'm not sure what else folks would like >> to discuss, or more importantly, who wants to lead the discussion. >> >> I'm open to anything - you folks let me know. :-) >> >> Later, >> >> Andy >> >> - -- >> Andy Stewart, Founder >> Worcester Linux Users' Group >> Worcester, MA, USA >> http://www.wlug.org >> >> -----BEGIN PGP SIGNATURE----- >> Version: GnuPG v1.4.2 (GNU/Linux) >> Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org >> >> iD8DBQFFnYzBHl0iXDssISsRAugkAJ4oqIb0K5TXwRzWbTpvkZFkyNoptwCeMWqV >> OPNxcijZoQP8z7eKDrz/OVs= >> =DqBf >> -----END PGP SIGNATURE----- >> _______________________________________________ >> Wlug mailing list >> Wlug(a)mail.wlug.org >> http://mail.wlug.org/mailman/listinfo/wlug >> > > > > -- > -Adam > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > -- They who would give up an essential liberty for temporary security, deserve neither liberty or security --Ben Franklin

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Topic for nextThursday
by Ken Jones Jan. 5, 2007

Jan. 5, 2007

How about RedHat Linux vs RedHat Fedora Core Linux. Is it possible to run a professional installation based on Fedora Core? Must one be a REAL pro? Ken Jones

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Amateur radio exam session at WPI on January 18
by Chuck Anderson Jan. 5, 2007

Jan. 5, 2007

At last WLUG I believe we talked about amateur radio, so perhaps this interests some of you. ----- Forwarded message from Gil Hayes <wk1h(a)charter.net> ----- From: "Gil Hayes" <wk1h(a)charter.net> To: "'Gil Hayes'" <wk1h(a)charter.net> Date: Fri, 5 Jan 2007 00:03:52 -0500 Subject: Amateur radio exam session at WPI on January 18 Hi all, The Worcester Area VE Team will be holding an amateur radio test session for all license classes: Date: Thursday, January 18, 2007 Time: 6:30 PM Place: Salisbury Labs, Room 123, Worcester Polytechnic Institute Please bring: 1. AN ORIGINAL AND A PHOTOCOPY of your current license and any CSCE's or other paperwork you are submitting 2. A basic calculator 3. Two forms of state acceptable ID (one must be a picture ID) 4. $14 exam fee (if check, payable to "ARRL VEC") 5. Pen or pencil The photocopies of your paperwork are very important as we must submit a copy of your records to the ARRL VEC if you are successful. Walk-ins are always accepted but pre-registration is preferred. To preregister email John at n2yhk(a)wpi.edu and/or Gil at wk1h(a)charter.net. Any questions about the session may also be directed to these emails. We will try to provide a talk-in on the 145.310 W1WPI repeater. It is recommended that if you are not familiar with the WPI campus that you print out and bring with you the campus map at http://www.wpi.edu/About/Visitors/Images/walkingmap.pdf. Thanks, Gil Note - To be removed from this mail list or have your email changed, please reply to this email. ----- End forwarded message -----

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