November 2002 - WLUG - wlug.mailman3.com

RE: [Wlug] Newbie to mailing list- Issue with the generation of graphs in redhat 6.2
by Sudhaker P 04 Nov '02

04 Nov '02

Hi Tim, Thanks for the reply. The version of JDK differ the version I'm having issues with is 1.3.1_01 and the ones the code is running successfully is 1.3.0_02, however the graphs were being produced before. The following is the Weblogic log which I'd appreciate if you can look at and tell what could be the issue in your view: java.lang.NoClassDefFoundError at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:120) at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:58) at java.awt.Window.<init>(Window.java:189) at java.awt.Frame.<init>(Frame.java:315) at java.awt.Frame.<init>(Frame.java:262) at com.rivenet.graphingaction.Graphit.runGraph2D(Unknown Source) at com.rivenet.reporting.InformalFundingComparisonGraph.makeGraph(Unknown Source) at jsp_servlet._plan._Model_controller._jspService(_Model_controller.java:356) at weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:123) at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:761) at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:708) at weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:252) at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:346) at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:246) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:135) I've done some reading and feel that awt uses X-windows and I think that might be broken. I'd appreciate your comments and suggestions. Thanks, Peram >From: "Keller, Tim" <Tim.Keller(a)stratus.com> >Reply-To: wlug(a)mail.wlug.org >To: "'wlug(a)mail.wlug.org'" <wlug(a)mail.wlug.org> >Subject: RE: [Wlug] Newbie to mailing list- Issue with the generation of >graphs in redhat 6.2 >Date: Tue, 29 Oct 2002 14:45:42 -0500 > >Peram, > >I'll ask an obvious question... You've verified that both machines running >the same version of the java run time environment? > >Also, does the entire applet fail or does it just fail to display the >graph. >If so, you might have to insert some code to catch exceptions... Possibly >some library has gotten mangled... > >Hope that helps, >Tim. > >-----Original Message----- >From: Sudhaker P [mailto:perams27@hotmail.com] >Sent: Tuesday, October 29, 2002 14:35 PM >To: wlug(a)mail.wlug.org >Subject: [Wlug] Newbie to mailing list- Issue with the generation of >graphs in redhat 6.2 > > >Hi , >I've a program that generates graphs with Java 1.3.1_01. The same program >is > >able to generate graphs on a machine with RH 6.2 kernel 2.4.16 but it fails >to generate graphs on a machine with RH 6.2 kernel 2.4.7-10 on which it >used > >to generate before. I've installed KDE and gd thinking that something may >broken in the OS on the jpegs generation part. But that doesn't seem to >help. >I'd appreciate if any of you gurus can guide me in this issue with your >comments and suggestions. > >Thanks, > >Peram > > > > > > >_________________________________________________________________ >Choose an Internet access plan right for you -- try MSN! >http://resourcecenter.msn.com/access/plans/default.asp > > >_______________________________________________ >Wlug mailing list >Wlug(a)mail.wlug.org >http://mail.wlug.org/mailman/listinfo/wlug > >_______________________________________________ >Wlug mailing list >Wlug(a)mail.wlug.org >http://mail.wlug.org/mailman/listinfo/wlug _________________________________________________________________ Internet access plans that fit your lifestyle -- join MSN. http://resourcecenter.msn.com/access/plans/default.asp

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Routing problem -can I believe the ISP tech? #2
by Richard Goodman 03 Nov '02

03 Nov '02

My apologies for the HTML, it was not intentional. I was trying to make part of the email more (not less) readable. I've changed options so hopefully it will never happen again. ======== I just brought up my fourth RH7.3 server Friday afternoon (one of two RH7.0 servers that had been hacked-new hard drive and software). I then went home and spent a couple of hours connected to it with ssh on a workstation connected to my home RH7.3 server. When I went to rerun a slightly modified (open ports for ftp and internal dhcp twiddling) ipchains firewall I lost the connection, and, more than 16 hours later, don't have it back. Other relevant details. (let's call the servers Home and EFO) Home was the other hacked server, and was formatted and rebuilt last weekend. Home and EFO are on the same ISP and each has a block of 4 static IPs. The blocks share the first 18 bits of their IP#s. Home could connect to EFO last night Home now cannot connect to EFO via ssh, or access its web site. Pings are disabled on all my servers - so I can't do that test. EFO network workstations can browse the web; I can ping out from the EFO linux box or workstations, and can ping EFO's Cisco 678 router from its Linux box EFO workstations cannot access Home websites (but I had not tried this before since rebuilding EFO Linux box Home Cisco 678 cannot be pinged from Home Linux box (!) or EFO (Linux or workstation), but can be pinged from my office (Linux box on other ISP). >From my office workstation I can also ssh to EFO and access EFO website (which in fact I uploaded to the new server from my office today). Does this discount the possibility of a firewall issue? I spent countless hours talking to the ISP (Qwest) tech support, and over an hour with a senior tech who had some Linux knowledge, and he claims that it must be a configuration issue on one or both of my Home and EFO Linux boxes, since: He can login to both my Cisco routers and ping the other router - he claims this proves its not a Qwest routing problem. If he's right I'm still puzzled by two things: a) Why could I connect from Home to EFO for two hours last night, no problems? b) Why can't the Home Linux box ping the Cisco 678 directly connected to it? I knew nothing about routing before today - here's the Home routing table: route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface xxx.yyy.28.48 0.0.0.0 255.255.255.248 U 0 0 0 eth0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 xxx.yyy.28.54 0.0.0.0 UG 0 0 0 eth0 I tried the following but still could not access EFO (added just the EFO IP#, not the network block: #route add -host xxx.yyy.26.57 dev eth0 # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface xxx.yyy.26.57 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xxx.yyy.28.48 0.0.0.0 255.255.255.248 U 0 0 0 eth0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 xxx.yyy.28.54 0.0.0.0 UG 0 0 0 eth0 Is this enough if to decide if the tech is right or crazy? Any suggestions - I still can't access Home from/to EFO. Dick

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RE: [Wlug] Looking for networking information
by Daniel Chen 03 Nov '02

03 Nov '02

I found that http://www.practicallynetworked.com/ as a good site with review on DSL/Cable routers and home wireless equipment. www.homepna.org was another good site for home networks. But if you were looking at basic information such as installing NIC card and Ethernet Basics. Microsoft Press has a Network book; Cisco Press has a Network book. Both book are the basis for each's Cert Exam Curriculum. Daniel -----Original Message----- From: Pierce Barnard [mailto:pcbarnard@earthlink.net] Sent: Sunday, October 27, 2002 8:46 AM To: wlug(a)mail.wlug.org Subject: [Wlug] Looking for networking information Hi, I recently acquired another pc and I want to incorporate it into my home network. Does anyone know of a website that has information on how to install and operate a windows based pc on a network? And I am looking for more information on networking in general.

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ticked at netgear
by Wes Allen 03 Nov '02

03 Nov '02

Hi gang, I've got a ma401 card from netgear. It worked beautifully under linux (better than in windows even). Today I switch on my laptop, and I no longer get a link to my network with the card. I figure I must've had a power glitch and my firewall isn't giving out dhcp address, so I restart it. Still no link. I check the settings of my wireless router, all good. I boot my desktop to see if my usb wireless card works, it does. None of my settings on my laptop have changed, I checked. I tweak with iwconfig until my hands are sore, no luck. So I finally call netgear because I figure that it is a hardware issue and I need to send in the card to have at least the antenna replaced. Tech support says, "I'm sorry but we can only trouble-shoot on windows so we can't help you." I tell them, "It's not a software issue, nothing has changed with my software from last night, everything is the same, the card is not picking up the link from the router, it's not functioning, it's a hardware issue..." They say, "But we need to troubleshoot in windows." I say, "Look, I've turned encryption on and off, I've tried different modes, I've tried different channels, I've turned rts and frag on and off [note: now it's not accepting values, another clue that this is a hardware problem]. Nothing works, your card is broken and I want to send it in." I'm told to hold. "I'm sorry, we cannot help you. We need to troubleshoot in windows." I slam the phone on the reciever so hard I think I nearly break it. Now I am pissed, and I still have a broken card. Does anyone else have any history with wireless antennas not working all of the sudden? This card hasn't even been out of the house, I leave it here when I go out for crying out loud! My next attempt will to disable encryption and go back to wvlan_cs to see if that jogs this thing. But I truly think it's hardware; nothing, NOTHING, on my laptop changed, I didn't even turn it on this morning! Wes -- ------ This message may be signed using GPG, for my public key please send me a message with "Key Request" in the subject line.

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Routing problem -can I believe the ISP tech?
by Richard Goodman 02 Nov '02

02 Nov '02

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2 goddamn megabyte message
by Keith Wright 02 Nov '02

02 Nov '02

Somebody just sent a 2 Megabyte message to this mailing list, I think. I don't even know who sent it, because I got tired of watching it download and telnet'ed into my pop server to delete it totally unread. Since I don't know who you are you are safe (from me at least) if you never do anything like that again. Can the mailing list software be configured to throw any message more than, say, a generous 200K, into /dev/null and reply to the sender with a polite message about his mother and a baboon? Thank you very much. -- Keith

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DNS Resolve from the Internet
by jose sanchez 02 Nov '02

02 Nov '02

Hello: Please help me get this straight. I am confused. I have a dnscache running at home on a DMZ network. I would like to know if I can have friends on other networks (in the Internet) to use my server as their resolver server? I have a firewall in place but, I'm directing all the udp traffic to port 53 to my dns-server; also my dnscache server is accepting connections from those networks ip's. Can I do this or do I need to register ($$$$$) a the dns-server? Thanks in advance for your help.... ===== "An ounce of gold cannot buy an ounce of time." - Anonymous www.whmicro.com __________________________________________________ Do you Yahoo!? HotJobs - Search new jobs daily now http://hotjobs.yahoo.com/

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Enterprise Linux Forum - Special Offer for Linux User Groups
by Andy Stewart 02 Nov '02

02 Nov '02

Hi Everybody, On Dec. 3 and 4, 2002, the Enterprise Linux Forum will be held at the Boston Marriot (Copley Place) in Boston, MA. We have been offered a $200 discount for WLUG members who attend the event. If you want more information, read below that which was sent to me. If you wish to go and can't read the attachments, send me e-mail. Later, Andy ---------- Forwarded Message ---------- Subject: Enterprise Linux Forum - Special Offer for Linux User Groups Date: Thu, 31 Oct 2002 12:27:15 -0500 From: Juliet Sigmann <jsigmann(a)jupitermedia.com> To: andystewart(a)attbi.com Andy, I hope you do not think it too forward of me to send you this e-mail, but I came across Worcester Linux Users Group while researching Linux associations and user group sites. My company, Jupitermedia, has developed a conference that I believe will be of interest to you and other members of Worcester Linux Users Group . The name of the event is Enterprise Linux Forum Conference & Expo. For complete details on this event, visit http://www.enterpriselinuxforum.com I would like to offer Worcester Linux Users Group members a $200 discount to attend the Enterprise Linux Forum. Registrations processed by November 19th save an additional $100 off the regular conference price. The conference offers 1-Day, 2-Day, and Expo Pass (free) passes to the event. This e-mail is not a "sales call", but is a win-win business proposition. We are seeking to drive attendance at this first time (albeit world-class) event. We can offer you and other Worcester Linux Users Group members a world class event that touches on a number of subjects via 4 comprehensive tracks that I believe would be of interest to your group such as Linux in the Datacenter; Clustered and Distributed Computing; Operations, Management and Infrastructure; and Application, Storage and Information Management. Scroll below for the complete line-up of speakers and topics to be highlighted at this event. As the conference brochure (attached in PDF format) relates, this event is set to run December 3-4, 2002 at the Boston Marriott Copley Place in Boston, MA. Currently, the event is sponsored by Red Hat (Premier Sponsor), BMC Software, Computer Associates, Dell, Egenera, IBM, NeTraverse, Oracle, Sun Microsystems, SuSE Linux, Ximian, and more. Additional supporters of the event include: Illuminata (Premier Analyst Sponsor) and association sponsors Free Standards Group, GNOME Foundation, Linux International, and Open Source Development Lab. Media sponsors include, Capterra, HostingTech, IT Toolbox, Linux Journal, and OutsourcingCentral.com. Visit the event web site at www.enterpriselinuxforum.com for the most up-to-date listing of speakers, session descriptions, sponsors, and exhibitors. Again, I would like to offer Worcester Linux Users Group members a $200 discount to attend the Enterprise Linux Forum. As you can see from the number and quality of sponsors and speakers, this is a first rate event. I have attached with this e-mail a fax back registration form with the $200 discount as well as some copy that you could include in an email newsletter to you members or your web site. In order for your members to take advantage of this $200 discount, they will need to use the priority code assigned in the fax back form or attached copy. Please call me directly if you have any comments or questions. Sincerely, Juliet Sigmann Marketing Manager Jupitermedia Corporation (formerly INT Media Group) 30 Lyman Street, Suite 8 Westboro, MA 01581 T: 508-870-5858 x119 F: 508-870-6521 eFax: 801-761-9698 jsigmann(a)jupitermedia.com www.jupitermedia.com **************************************************************************** *************** Keynotes and Sessions Click on http://www.jupiterevents.com/elf/fall02/glance.html for the complete agenda Keynote 1: The Inevitable Linux Momentum - Matthew J. Szulik, Chairman, CEO and President, Red Hat Keynote 2: Linux in Prime Time: Open Source Meets Enterprise Requirements - Jonathan Eunice, President and Principal Analyst, Illuminata Keynote 3: IBM Enterprise Solutions for Linux - Steven C. Solazzo, General Manager, Linux, IBM Keynote 4: Unbreakable Linux - Rene Bonvanie, VP of Oracle9i Marketing, Oracle Corporation Session 1: The Changing Face of Linux - David Niemi, Director of Systems Engineering, Adeptech Systems, Inc. Session 2: Linux High Availability Cluster Selection - Tim Burke, Advanced Server Technical Project Leader, Red Hat Session 3: VPN Enterprise Implementation at Rochester Midland - Tony Karakashian, Network Manager, Rochester Midland Corporation Session 4: Linux as Embedded Operating System - Rob Lembree, Technical Director, Metro Link, Inc. Session 5: How Sitel Worldwide Runs Call Centers Utilizing Linux - Scott Clark, Director of Systems Engineering, Sitel Corporation Session 6: PANEL: Server Consolidation Strategies Using Linux - Moderator: Brian Proffitt, Managing Editor, LinuxToday.com Session 7: The Enterprise Linux Desktop: Addressing Corporate Needs - Nat Friedman, Co-founder and Vice President of Product Development, Ximian Session 8: Managing Linux on Datacenter Mainframe Systems - Alex deVries, Principal Solutions Architect, Linuxcare Session 9: The Future of Open Source Software in the Enterprise - Randy Terbush, Managing Partner, Tribal Knowledge Group Session 10: The Future of Datacenter Computing: How the Combination of Storage Area Networks and Processing Area Networks Solves Multiple Pain Points for Enterprise Datacenters Session 11: Apache: An Enterprise-Level Server - Daniel Lopez Ridruejo, Senior Developer, Instant802 Networks Session 12: The Virtual Environment - Where Does Linux Fit? - Dan Kusnetzky, Vice President, System Software Research, IDC Session 13: Enterprise-Ready Linux on the Mainframe: The Path to Success - Sam Greenblatt, SVP, Computer Associates Session 14: The Linux Factor: How Linux and Friends will Reshape Application by 2005 - Jasmine Noel, Founder and Principal, JNoel Associates Session 15: Rethinking the Linux Distribution: Linux as Platform, Not Product - Ian Murdock, Progeny Session 16: Linux Clusters and Open Source Software in the Life Sciences - Glenn Otero, Ph.D., Founder and Principal, Linux Prophet Session 17: The Linux Standard Base - Changing Everything You Think About Linux - Scott McNeil, Executive Director, Free Standards Group Session 18: Linux in Business: Answering Fear, Uncertainty and Doubt - Russell Pavlicek, Independent Consultant Session 19: PANEL: Integrating Linux Into the Enterprise - Moderator: Brian Proffitt, Managing Editor, LinuxToday.com Session 20: Open Source Development Lab Data Center Linux (DCL) for OLTP and DSS - Timothy Witham, Lab Director, Open Source Development Lab Session 21: Migrating C/C++ Applications from Unix to Linux - Shel Travis, Vice President of Research, MigraTEC Session 22: Web Services: The Killer Application for Open Source - Christian Gross, Software Engineering Consultant Session 23: Linux Database Clusters for High Performance Computing - Boris C. Bialek, Manager, DB2 Strategic Technologies, IBM Toronto Lab Session 24: High-Performance End-to-End Computing Using Linux - Chris Maresca, Senior Partner, Olliance Group, LLC **************************************************************************** *************** ------------------------------------------------------- -- Andy Stewart, Founder Worcester Linux Users' Group Worcester, MA USA http://www.wlug.org

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