Search Results

Search found 192 results on 8 pages for 'johannes jensen'.

Page 2/8 | < Previous Page | 1 2 3 4 5 6 7 8 | Next Page >

Cannot connect my Ubuntu to TV with HDMI

- by Hannes Johannes

Another problem in my way to Ubuntu world.. Trying to make things work Linux way, day 4, problem #5321: I have a Compaq laptop and Nvidia graphic adapter. I also have Panasonic TV, which I thought I could use as a second screen just like I used to to when I was still using Windows Vista with my laptop. Plug the screen to the comp and voilá, I can watch my videos on big screen. And a boll***s I can, not with ubuntu anyways. Nvidia x server (or whatever it's called) does recognize my tv. It's very badly designed gui as I can never be sure has it saved my changes or not (most often not), but I recon I've got that one sorted out. I haven't found a way to set a primary monitor there, but it does see there are two monitors, my laptop and the tv. So far so good. But then? Ubuntu's own monitor setting only sees the laptop screen. If I reboot (with the HDMI cable connected) I end up having a black screen. Then I have to take the cable away, cut the power off and restart the comp.. Please, help, any help would be appreciated! I would so much love to like this linux more than windows but it surely takes a lot of trying...

Read the article
Why does my MySQL remote-connection fail (VLAN)?

- by Johannes Nielsen

ubuntu-community! Again I have a problem with my special friend MySQL :D I have got two servers - a database-server and a web-server - who are connected via VLAN. Now I want the web-server to have remote access to the database-server's MySQL. So I created the user user in mysql.user. user's Host is xxx.yyy.zzz.9 which is the internal IP-address of the web-server. xxx.yyy.zzz.0 is the network. I also created user with Host % . As long as I use MySQL on the database-server logging in as user, everything works fine. But trying to log in as user from xxx.yyy.zzz.9 using mysql -h xxx.yyy.zzz.8 -u user -p (where xxx.yyy.zzz.8 is the database-server's internal IP), I get ERROR 2003 (HY000): Can't connect to MySQL server on 'xxx.yyy.zzz.8' (110) So I tried to activate Bind-Address in the my.cnf file. Well, if I use xxx.yyy.zzz.8, nothing changes. But if I try xxx.yyy.zzz.9 and try to restart MySQL, I get mysql stop/waiting start: Job failed to start I checked the log files and found - nothing. The database-server's MySQL doesn't even register, that the web-server tries to connect remotely. My idea is, that maybe I didn't configure the VLAN properley, even though I asked someone who actually knows such stuff and he told me, I did everything right. What I wrote into /etc/networking/interfaces is: #The VLAN auto eth1 iface eth1 inet static address xxx.yyy.zzz..8 netmask 255.255.255.0 network xxx.yyy.zzz.0 broadcast xxx.yyy.zzz.255 mtu 1500 ifconfig returns eth1 Link encap:Ethernet HWaddr xxxxxxxxxxxxxx inet addr:xxx.yyy.zzz.8 Bcast:xxx.yyy.zzz.255 Mask:255.255.255.0 inet6 addr: xxxxxxxxxxxxxxx/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:241146 errors:0 dropped:0 overruns:0 frame:0 TX packets:9765 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:17825995 (17.8 MB) TX bytes:566602 (566.6 KB) Memory:fb900000-fb920000 for the eth1, what is, what I configured. (This is for the database-server, the web-server looks similar). ethtool eth1 returns: Settings for eth1: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on MDI-X: Unknown Supports Wake-on: d Wake-on: d Current message level: 0x00000003 (3) drv probe Link detected: yes (This is for the database-server, the web-server looks similar). Actually I think, everything is right, but it still doesn't work. Is there someone with an idea? EDIT: I commented ou Bind-Address in my.cnf after it didn't work.

Read the article
Is INT_MIN-1 an underflow or overflow?

- by Johannes Schaub - litb

I seem to remember that I was reading that underflow means you have a too small magnitude that cannot be presented anymore in a type overflow means you have a too large magnitude that cannot be presented anymore in a type However, in practice I perceive that the terms are used such that underflow means you have a too small value that cannot be presented anymore in a type overflow means you have a too large value that cannot be presented anymore in a type What is the correct meaning to use here? Are the terms defined differently for integer and floating point types?

Read the article
C++ Library API Design

- by johannes

I'm looking for a good resource for learning about good API design for C++ libraries, looking at shared objects/dlls etc. There are many resources on writing nice APIs, nice classes, templates and so on at source level, but barely anything about putting things together in shared libs and executables. Books like Large-Scale C++ Software Design by John Lakos are interesting but massively outdated. What I'm looking for is advice i.e. on handling templates. With templates in my API I often end up with library code in my executable (or other library) so if I fix a bug in there I can't simply roll out the new library but have to recompile and redistribute all clients of that code. (and yes, I know some solutions like trying to instantiate at least the most common versions inside the library etc.) I'm also looking for other caveats and things to mind for keeping binary compatibility while working on C++ libraries. Is there a good website or book on such things?

Read the article
favored keyboard layout keeps being replaced

- by Johannes Bauer

My Ubuntu was installed with only a German keyboard layout configured. I much prefer the English UK (extended WinKeys) layout and therefore added that option. However, the selected keyboard layout kept reverting to German seemingly at random, and so I removed it through the layout indicator's preferences dialog. Strangely that didn't help: every now and then the English keyboard layout is replaced by the German one and that change shows up in the layout indicator. I guess the unwanted layout must still be configured somewhere and I must be hitting some key combination to switch to it. But the preferences dialog for the layout indicator doesn't show any such combination. I'm on Ubuntu 12.04 and I'm using Xfce 4.8. PS: This is similar but not the same as this or this issue: when I log in, the correct layout is usually selected (and only that layout is configured). The layout is changed completely at random while I'm working.

Read the article
Acer Allionone Z5810 Touchscreen Issues 12.04

- by Johannes

I have an Acer Allionone Z5810, and I can't get the touchscreen to work after I install 12.04. Here is the lsusb output: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 003: ID 0596:0508 MicroTouch Systems, Inc. Bus 001 Device 004: ID 04b8:0005 Seiko Epson Corp. Printer Bus 001 Device 005: ID 07ca:1336 AVerMedia Technologies, Inc. Bus 002 Device 003: ID 04ca:0058 Lite-On Technology Corp. Bus 002 Device 004: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Bus 002 Device 005: ID 04f2:b23f Chicony Electronics Co., Ltd xinput --list Virtual core pointer id=2 [master pointer (3)] ? ? Virtual core XTEST pointer id=4 [slave pointer (2)] ? ? Lite-On Technology Corp. Wireless Device id=9 [slave pointer (2)] ? ? Lite-On Technology Corp. Wireless Device id=10 [slave pointer (2)] ? Virtual core keyboard id=3 [master keyboard (2)] ? Virtual core XTEST keyboard id=5 [slave keyboard (3)] ? Power Button id=6 [slave keyboard (3)] ? Power Button id=7 [slave keyboard (3)] ? Lite-On Technology Corp. Wireless Device id=8 [slave keyboard (3)] ? USB 2.0 camera id=11 [slave keyboard (3)] ? AT Translated Set 2 keyboard id=12 [slave keyboard (3)] My xorg.conf contains: nvidia-xconfig: X configuration file generated by nvidia-xconfig nvidia-xconfig: version 304.48 (buildmeister@swio-display x86-rhel47-04.nvidia.com) Sun Sep 9 21:31:39 PDT 2012 Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" InputDevice "TouchScreen" EndSection Section "Files" EndSection Section "InputDevice" Identifier "TouchScreen" Driver "microtouch" Option "Type" "finger" Option "Device" "/dev/ttyS3" Option "ScreenNo" "0" Option "MinX" "0" Option "MaxX" "16383" Option "MinY" "0" Option "MaxY" "16383" Option "SendCoreEvents" "yes" EndSection Section "InputDevice" # generated from default Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/psaux" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection Section "Monitor" Identifier "Monitor0" VendorName "Unknown" ModelName "Unknown" HorizSync 28.0 - 33.0 VertRefresh 43.0 - 72.0 Option "DPMS" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" EndSection Section "Screen" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Depth 24 EndSubSection EndSection

Read the article
Repacked proprietary software keeps updating the same deb

- by Johannes

I repacked a proprietary program delivered as tar file to a deb file for having a company wide repository. I used reprepro to set up a repository and signed it. A unix timestamp is faking a versioning numbering, so I can have different (real) versions installed at the same time. Almost everything works as expected. The deb file looks like this: mysoft8.0v6_1366455181_amd64.deb Only problem on a client machine it tries to install the same deb file over and over again because it thinks its an update. What do I miss: control file in deb package looks like this: Package: mysoft8.0v6 Version: 1366455181 Section: base Priority: optional Architecture: amd64 Installed-Size: 1272572 Depends: Maintainer: me Description: mysoft 8.0v6 dpkg repackaging and the config in the repository: /mirror/mycompany.inc/conf/distributions: Origin: apt.mycompany.inc Label: apt repository Codename: precise Architectures: amd64 i386 Components: main Description: Mycompany debian/ubuntu package repo SignWith: yes Pull: precise Help much appreciated Added guide: This Is the guide I used to create the repository.

Read the article
Problem with deploying simple Spring MVC Portlet to Liferay 5.2.3

- by Johannes Hipp

Hello, I try to deploy a simple spring portlet in ext (I can't use Plugins SDK...) on Liferay 5.2.3 My portlet: ext-impl/src: package: com.ext.portlet.springmvc HelloWorldController.java [code] package com.ext.portlet.springmvc; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.Controller; public class HelloWorldController implements Controller { public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String aMessage = "Hello World MVC!"; ModelAndView modelAndView = new ModelAndView("hello_world"); modelAndView.addObject("message", aMessage); return modelAndView; } } [/code] ext-lib: - jstr.jar - spring-webmvc.jar - spring-webmvc-portlet.jar - spring.jar - standard.jar ext-web/docroot/html/portlet/ext/springmvc/hello_world.jsp [code] <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <html> <body> <p>This is my message: ${message}</p> </body> </html> [/code] ext-web/docroot/html/portlet/ext/springmvc/index.jsp [code] <html> <body> <p>Hi</p> </body> </html> [/code] ext-web/docroot/WEB-INF/springmvc-servlet.xml [code] <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> <bean name="/hello_world.html" class="com.ext.portlet.springmvc.HelloWorldController"/> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> <property name="prefix" value="/jsp/"/> <property name="suffix" value=".jsp"/> </bean> </beans> [/code] ext-web/docroot/WEB-INF/portlet-ext.xml [code] <portlet> <portlet-name>springmvc</portlet-name> <portlet-class>org.springframework.web.portlet.DispatcherPortlet</portlet-class> <supports> <mime-type>text/html</mime-type> <portlet-mode>view</portlet-mode> </supports> <portlet-info> <title>Simple JSP Portlet</title> </portlet-info> <security-role-ref> <role-name>power-user</role-name> </security-role-ref> <security-role-ref> <role-name>user</role-name> </security-role-ref> </portlet> [/code] ext-web/docroot/WEB-INF/web.xml [code] <?xml version="1.0"?> <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4"> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.html</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file> jsp/index.jsp </welcome-file> </welcome-file-list> </web-app> [/code] Are there some mistakes? I get this error, when I try to deploy: [code] Website OC4J 10g (10.1.3) Default Web Site definiert ist. Error creating bean w ith name 'com.liferay.portal.kernel.captcha.CaptchaUtil' defined in class path r esource [META-INF/util-spring.xml]: Cannot create inner bean 'com.liferay.portal .captcha.CaptchaImpl#1424b7b' of type [com.liferay.portal.captcha.CaptchaImpl] w hile setting bean property 'captcha'; nested exception is org.springframework.be ans.factory.BeanCreationException: Error creating bean with name 'com.liferay.po rtal.captcha.CaptchaImpl#1424b7b' defined in class path resource [META-INF/util- spring.xml]: Instantiation of bean failed; nested exception is org.springframewo rk.beans.BeanInstantiationException: Could not instantiate bean class [com.lifer ay.portal.captcha.CaptchaImpl]: Constructor threw exception; nested exception is java.lang.NullPointerException [/code] Hope anybody can help me... Thank you very much. Best regards, Johannes

Read the article
luntbuild + maven + findbugs = OutOfMemoryException

- by Johannes

Hi, I've been trying to get Luntbuild to generate and publish a project site for our project including a Findbugs report. All other reports (Cobertura, Surefire, JavaDoc, Dashboard) work fine, but Findbugs bails out with an OutOfMemoryException. Excluding findbugs from report generation fixes the build --- although obviously without a Findbugs report. The funny thing is that I first encountered this problem locally and solved it by setting MAVEN_OPTS=-Xmx512m. This does not seem to be enough in Luntbuild, however: setting that exact same option as an environment variable of my builder doesn't make a difference. I've found a couple of posts on the 'net stating you should also add -XX:MaxPermSize=512m to MAVEN_OPTS and/or pass -Dmaven.findbugs.jvmargs=-Xmx512m to mvn.bat. None of these (or their combination) seem to help though so any hints would be greatly appreciated! Cheers, Johannes Relevant information: Luntbuild is 1.5.6, Maven is 2.1.0, findbugs-maven-plugin is 2.0.1. This is the Findbugs section of the relevant pom.xml: <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>findbugs-maven-plugin</artifactId> <version>2.0.1</version> </plugin> This is the head of my build log: User "luntbuild" started the build Perform checkout operation for VCS setting: Vcs name: Subversion Repository url base: http://some.repository.com/repo/ Repository layout: multiple Directory for trunk: trunk Directory for branches: branches Directory for tags: tags Username: xxxx Password:xxxx Web interface: ViewVC URL to web interface: http://some.repository.com/repo/ Quiet period: modules: Source path: somepath, Branch: , Label: , Destination path: somewhere Source path: somepath, Branch: somewhere1.0.x, Label: , Destination path: somewhere-1.0.x Source path: somepath, Branch: somewhere1.1.x, Label: , Destination path: somewhere-1.1.x Update url: http://some.repository.com/repo//trunk Duration of the checkout operation: 0 minutes Perform build with builder setting: Builder name: default Builder type: Maven2 builder Command to run Maven2: "C:\maven\apache-maven-2.1.0\bin\mvn.bat" -e -f somewhere\pom.xml -P site -Dmaven.test.skip=false -DbuildDate="Tue Nov 24 11:13:24 CET 2009" -DbuildVersion="site-core138" -Dsvn.username=xxxx -Dsvn.password=xxxx -DstagingSiteURL=file:///C:/luntbuild/core-reports -Dmaven.findbugs.jvmargs=-Xmx512m Directory to run Maven2 in: Goals to build: site:stage site:stage-deploy Build properties: buildVersion="site-core138" artifactsDir="C:\\Program Files\\Luntbuild\\publish\\somewhere\\site-core\\site-core138\\artifacts" buildDate="Tue Nov 24 11:13:24 CET 2009" junitHtmlReportDir="" Environment variables: MAVEN_OPTS="-Xmx512m -XX:MaxPermSize=512m" Build success condition: result==0 and builderLogContainsLine("INFO","BUILD SUCCESSFUL") Execute command: Executing 'C:\maven\apache-maven-2.1.0\bin\mvn.bat' with arguments: '-e' '-f' 'somewhere\pom.xml' '-P' 'site' '-Dmaven.test.skip=false' '-DbuildDate=Tue Nov 24 11:13:24 CET 2009' '-DbuildVersion=site-core138' '-Dsvn.username=xxxxxx' '-Dsvn.password=xxxxxx' '-DstagingSiteURL=file:///C:/luntbuild/reports' '-Dmaven.findbugs.jvmargs=-Xmx512m' '-DbuildVersion=site-core138' '-DartifactsDir=C:\\Program Files\\Luntbuild\\publish\\somewhere\\site-core\\site-core138\\artifacts' '-DbuildDate=Tue Nov 24 11:13:24 CET 2009' '-X' 'site:stage' 'site:stage-deploy' Tail of my build log: Analyzed: C:\luntbuild\somewhere-work\somewhere\...\SomeClass.class ... Analyzed: C:\luntbuild\somewhere-work\somewhere\...\target\classes Aux: C:\luntbuild\somewhere-work\somewhere\...\target\classes Aux: c:\maven\local-repo\...\somejar-1.1.1.1-SNAPSHOT.jar Aux: c:\maven\local-repo\commons-lang\commons-lang\2.3\commons-lang-2.3.jar .... Aux: c:\maven\local-repo\org\openoffice\ridl\3.1.0\ridl-3.1.0.jar Aux: c:\maven\local-repo\org\openoffice\unoil\3.1.0\unoil-3.1.0.jar [INFO] ------------------------------------------------------------------------ [ERROR] FATAL ERROR [INFO] ------------------------------------------------------------------------ [INFO] Java heap space [INFO] ------------------------------------------------------------------------ [DEBUG] Trace java.lang.OutOfMemoryError: Java heap space at java.util.HashMap.(HashMap.java:209) at edu.umd.cs.findbugs.ba.type.TypeAnalysis$CachedExceptionSet.(TypeAnalysis.java:114) at edu.umd.cs.findbugs.ba.type.TypeAnalysis.getCachedExceptionSet(TypeAnalysis.java:688) at edu.umd.cs.findbugs.ba.type.TypeAnalysis.computeThrownExceptionTypes(TypeAnalysis.java:439) at edu.umd.cs.findbugs.ba.type.TypeAnalysis.transfer(TypeAnalysis.java:411) at edu.umd.cs.findbugs.ba.type.TypeAnalysis.transfer(TypeAnalysis.java:89) at edu.umd.cs.findbugs.ba.Dataflow.execute(Dataflow.java:356) at edu.umd.cs.findbugs.classfile.engine.bcel.TypeDataflowFactory.analyze(TypeDataflowFactory.java:82) at edu.umd.cs.findbugs.classfile.engine.bcel.TypeDataflowFactory.analyze(TypeDataflowFactory.java:44) at edu.umd.cs.findbugs.classfile.impl.AnalysisCache.analyzeMethod(AnalysisCache.java:331) at edu.umd.cs.findbugs.classfile.impl.AnalysisCache.getMethodAnalysis(AnalysisCache.java:281) at edu.umd.cs.findbugs.classfile.engine.bcel.CFGFactory.analyze(CFGFactory.java:173) at edu.umd.cs.findbugs.classfile.engine.bcel.CFGFactory.analyze(CFGFactory.java:64) at edu.umd.cs.findbugs.classfile.impl.AnalysisCache.analyzeMethod(AnalysisCache.java:331) at edu.umd.cs.findbugs.classfile.impl.AnalysisCache.getMethodAnalysis(AnalysisCache.java:281) at edu.umd.cs.findbugs.ba.ClassContext.getMethodAnalysis(ClassContext.java:937) at edu.umd.cs.findbugs.ba.ClassContext.getMethodAnalysisNoDataflowAnalysisException(ClassContext.java:921) at edu.umd.cs.findbugs.ba.ClassContext.getCFG(ClassContext.java:326) at edu.umd.cs.findbugs.detect.BuildUnconditionalParamDerefDatabase.analyzeMethod(BuildUnconditionalParamDerefDatabase.java:103) at edu.umd.cs.findbugs.detect.BuildUnconditionalParamDerefDatabase.considerMethod(BuildUnconditionalParamDerefDatabase.java:93) at edu.umd.cs.findbugs.detect.BuildUnconditionalParamDerefDatabase.visitClassContext(BuildUnconditionalParamDerefDatabase.java:79) at edu.umd.cs.findbugs.DetectorToDetector2Adapter.visitClass(DetectorToDetector2Adapter.java:68) at edu.umd.cs.findbugs.FindBugs2.analyzeApplication(FindBugs2.java:971) at edu.umd.cs.findbugs.FindBugs2.execute(FindBugs2.java:222) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:230) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:912) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:756) [INFO] ------------------------------------------------------------------------ [INFO] Total time: 17 minutes 16 seconds [INFO] Finished at: Tue Nov 24 11:31:23 CET 2009 [INFO] Final Memory: 70M/127M [INFO] ------------------------------------------------------------------------ Maven2 builder failed: build success condition not met! Note that apparently maven only uses 70MB... but that probably doesn't mean anything since the Findbugs plugin forks its own process.

Read the article
Firefox Start page stay white

- by Jensen

Hi, I'm a Firefox user since several years so I know it but today I had a strange problem. I installed the last stable version of Firefox (3.5.5) on a computer but when I launch the browser the page stay empty (blank). In the settings I set the startpage as Google but nothing to do. When the browser starts in the address bar it is well written google.com but the page remains blank. I must click on the button in the address bar so that the site appears. I've never had this problem with Firefox, it's strange. Thanks

Read the article
Move Firefox user settings to another folder on same machine

- by Jesper Rønn-Jensen

Due to company restrictions where I currently work, My windows users folder %USERPROFILE% is space restricted. I get a warning that I must delete files before I can log off. Because of that, I have moved everything else out of my profile folder (maven repository, IntelliJ configuration & cache). I need to tell Firefox to put userprofiles somewhere else on my machine (like for instance C:\ff_profiles\ ). How do I do that?

Read the article
How can Rackspace beat DigitalOcean's Pricepoint? [on hold]

- by Matt Jensen

I have recently discovered Digital Ocean and I have found it to be a relatively nice experience for small staging servers, and the thought occurred to me, why am I paying $267~ for a server on Rackspace (40GB RAM, 160 GB Drive, 2 vCPUs, 400 Mb/s) when Digital Ocean offers a server for $40 (40 GB RAM, 60GB Drive [storage is not a concern of mine], 2 vCPUs, ?Mb/s)? Does Rackspace offer some kind of obvious advantages in Transfer speed/bandwidth? My applications are small startups that for the immediate future will only have about 200-300 concurrent users at once.

Read the article
Simulate analogue steering wheel input from third party software like xPadder

- by David Jensen

So. I currently have a steering wheel connected to my htpc. Since it wont work / get recognized by all games i play. I use xpadder to play for example Grid 3. As far as i have understood, it simply presses the associated arrow key when i turn the wheel. What i would like, is a software to simulate more and more frequent key presses of the arrow keys the more i turn the wheel. Example: Tilting a little - 100 presses / second Tilting more - 200 presses / second Tilting max - Hold down key Because what i currently do with the wheel is constantly shaking it a bit right, when i just want to turn a little bit right and so on. Os : W8

Read the article
Ruby installed on Ubuntu 10.10 slow on one machine but not other

- by Aaron Jensen

I have a machine that was provisioned several months ago. RVM was used to install ruby 1.9.3-p125 as well as 1.9.3-p125-perf. When I compared raw ruby performance to another identical machine the older machine smoked them. For example: ================================================================================ With in-block needle calculation ================================================================================ Rehearsal ---------------------------------------------- detect 3.790000 0.000000 3.790000 ( 3.800895) each 2.410000 0.000000 2.410000 ( 2.420860) any 3.960000 0.000000 3.960000 ( 3.972099) include 1.440000 0.000000 1.440000 ( 1.442862) ------------------------------------ total: 11.600000sec vs ================================================================================ With in-block needle calculation ================================================================================ Rehearsal ---------------------------------------------- detect 10.740000 0.000000 10.740000 ( 10.769366) each 6.080000 0.010000 6.090000 ( 6.106323) any 10.600000 0.000000 10.600000 ( 10.641606) include 4.160000 0.000000 4.160000 ( 4.171530) ------------------------------------ total: 31.590000sec I attempted to reinstall 1.9.3-p125 with rvm on the fast machine and that ruby is now slow. It's as if something changed in RVM, or I installed some package that made compiled versions of ruby perform significantly worse. I know this is a tough question to answer, but what things should I look into in order to track down why the performance has suffered so much? edit I just attempted to install with ruby-build and the version installed was fast. Something rvm is doing to build it in my environment is slow.

Read the article
Wireless controllers vs wireless usb hub

- by David Jensen

For my htpc i currently only have a steerin wheel as a controller. This is wired and it looks really bad having extended usb wires from the tv to the table. However im thinking of bying some new Gamepads and now comes the question. Should i buy wireless ones or wired and connect them to a wireless usb hub? Having a wireless hub would let me manage my gamepads easily from the couch. A wireless hub also allows me to connect other things that are not input devices from the couch. However im wondering if wireless usb hubs may not be made for input devices in the way that they may not have 100% uptime and probably some delay. Am i right about this?

Read the article
Strange Grub behavior Series 9

- by jothebo

I have got a Samsung Series 9 900x3c with Ubuntu 12.04 on. After installing Ubuntu Grub would not load completely (only parts of the Menu were showing) every time so I launched the Boot repair indicating the use of an UEFI bios. Now Grub always loads completely but I do not seem to be able to launch Ubuntu directly. Instead I have to select Advanced options for Ubuntu and the newest Kernel Version and then the boot starts. Any ideas? Thanks a lot in advance Johannes

Read the article
Java Plugin a huge security risk? How to preseve Java plugin from privilege escalation?

- by Johannes Weiß

Installing a regular Java plugin is IMHO a real security risk for non-IT people. Normally Java applets run in a sandbox and the applet cannot do anything harmful to your computer. If an applet, however, needs to do something like read-only accessing your filesystem e.g. uploading an image, you have to give it more privileges. Usually that's ok but I think not everyone knows that you give the applet the same privileges to your computer as your user has! And that's everything Java asks you: That looks as 'harmful' as a self-signed SSL certificate on a random page where no sensitive data is exchanged. The user will click on Run! You can try that at home using JyConsole, that's Jython (Python on Java)! Simply type in python code, e.g. import os os.system('cat /etc/passwd') or worse DON'T TYPE IN THAT CODE ON YOUR COMPUTER!!! import os os.system('rm -rf ~') ... Does anyone know how you can disable the possibily of privilege escalation? And by the way, does anyone know why SUN displays only a dialog as harmless as the one shown above (the self-signed-SSL-certificate-dialog from Firefox 3 and above is much clearer here!)? Live sample from my computer:

Read the article
Stop Cisco AnyConnect from locking down the NIC

- by Johannes Rössel

Cisco's VPN crapclients (including the AnyConnect one) have the nasty habit of clobbering all NICs on the system you're using them. The old client had a checkbox in the connection options that allowed you to use other network interfaces while being connected while the AnyConnect client doesn't have any options at all, seemingly. But they both lock down the network interface they are using to connect to the VPN. Since I am forced to use AnyConnect to actually have an internet connection and I like to control a second computer at home via RDP (over the same network interface so far) this doesn't quite work out. With the old client IPv6 still worked just fine, though AnyConnect seems to dislike that as well now. Is there any way to still use the same network interface for LAN access? I actually don't really care about any possible security implications (which might be why Cisco does this) as it's my freaking internet connection and not a secure way of working from home. The trade-off is quite different :-)

Read the article
Spurious alleged file corruption on Windows 7

- by Johannes Rössel

Recently my Laptop sometimes warns about corrupted files on the hard drive (Samsung SSD PB22-JS3 TM). This has only happened so far when updating (or checking out) an SVN repository with either TortoiseSVN or the command line Subversion client. The fun thing is that the corrupted file has always been a .svn directory (although the directory entry may contain files in that directory too, if they're small enough?—?which should be the case with SVN). However, when looking into the warned-about directory I notice nothing strange or unusual and don't get any more warnings about it and another try (SVN stops updating once that error occurs?—?TortoiseSVN even with an appropriate error message) of updating the working copy works (well, mostly; sometimes it does it again, albeit with a different directory). Since the laptop is only a few months old I doubt the SSD is failing already—five months of normal usage shouldn't be too surprising. Also it (so far) occurred only with SVN updates on a large repository. Maybe that's too many writes in a short time and some part between the software and the hardware doesn't quite catch up fast enough or so?—?I don't know enough about this to actually make an informed guess here. Anyone knows what's up here? ETA: Note to add: I've run chkdsk (it seems to schedule itself anyway when this happens) and it didn't find anything out of the ordinary.

Read the article
Spurious alleged file corruption with an SSD

- by Johannes Rössel

Recently my Laptop sometimes warns about corrupted files on the hard drive (Samsung SSD PB22-JS3 TM). This has only happened so far when updating (or checking out) an SVN repository with either TortoiseSVN or the command line Subversion client. The fun thing is that the corrupted file has always been a .svn directory (although the directory entry may contain files in that directory too, if they're small enough?—?which should be the case with SVN). However, when looking into the warned-about directory I notice nothing strange or unusual and don't get any more warnings about it and another try (SVN stops updating once that error occurs?—?TortoiseSVN even with an appropriate error message) of updating the working copy works (well, mostly; sometimes it does it again, albeit with a different directory). Since the laptop is only a few months old I doubt the SSD is failing already—five months of normal usage shouldn't be too surprising. Also it (so far) occurred only with SVN updates on a large repository. Maybe that's too many writes in a short time and some part between the software and the hardware doesn't quite catch up fast enough or so?—?I don't know enough about this to actually make an informed guess here. Anyone knows what's up here? ETA: Note to add: I've run chkdsk (it seems to schedule itself anyway when this happens) and it didn't find anything out of the ordinary.

Read the article
mdadm auto grow raid

- by johannes

I have a raid0/1 on lvm logical volumes. I resized the logical volumes. Now I want to resize the raid to use the complete logical volumes. This can be done with mdadm /dev/md? --grow -z newsize But somehow I can't figure out how to calculate the newsize argument. Is there a way to tell mdadm to grow to the biggest possible size? If not, how do I calculate the biggest possible size of the raid to use for the newsize argument?

Read the article
VPN with client-to-client direct connectivity?

- by Johannes Ernst

When setting up a VPN, clients (say client1 and client2) usually authenticate to a server, and together the three constitute the VPN. When client1 wishes to send a packet to client2, this packet usually gets routed by way of server. Are there products / configuration blueprints for products where it is possible to send packets directly from client1 to client2 without going though server? (if the underlying network topology permits it, e.g. no firewalls in the way) If not, is there a way by which client1 can send a packet to client2 by way of server, without the server being able to snoop on the content of the packet? (E.g. because the packet is encrypted with the public key of client2) I just asked in the OpenVPN forum, and the answer I got was "not with OpenVPN". So my question is: are there other products with which this is possible? Open-source preferred ... One use case: client1 and client2, typically in separate offices, find themselves both at headquarters. Do they still need to talk to each other via the public internet? Links appreciated. Thank you.

Read the article
Wikimedia Commons not working properly from IE 8

- by Johannes Rössel

It happens fairly often that a page on Wikimedia Commons doesn't load in IE. This happens to me on both machines I use, each one Windows 7 with IE 8. The page just loads endlessly (or connects—can't really tell) and timeouts after a while. Repeated attempts (trying to load the same page in 5 to 10 tabs) sometimes work, but sometimes it takes a lot more tries. As far as I can tell, no other program is affected—Firefox or PowerShell have no trouble loading the page. Also, when I use Fiddler it seems to load fine on the first try as well. Anyone has an idea what might be going on? I didn't change any settings that I am aware of (and most likely didn't do so in the same way on both machines). Preemptive note: I don't need advice in the form of »Use another browser instead.«.

Read the article
Difference between *:80 and _default_:80 in Apache2

- by Johannes Ernst

I'm trying to understand the difference between the following two terms: *:80 _default_:80 in the Apache configuration file. The documentation here is unclear to me, and the only mailing list conversation that I could find here does not shed any (comprehensible, to me) light on the matter either. I have a bunch of name-based virtual hosts declared like this: <VirtualHost *:80> ServerName example.com ... and I'd like to have an entry that fires when none of those match, i.e. when a request comes in without a virtual host name, or with a virtual host name that has not been declared. Should I use *:80 or default:80?

Read the article
Is there a quick way of undoing a folder change in Far Manager?

- by Johannes Rössel

I love Far Manager. However, it has a feature to quickly go to the root directory of a drive with Ctrl+\. I do sometimes need and use this feature, but more frequently I use Ctrl+? to quickly insert the file name under the cursor into the command line. As it so happens, the ? key is located dangerously close to \ which is why I sometimes erroneously go the root directory (which then is doubly unfortunate since I originally wanted to work with a file in the directory I was in). Now I could probably just redefine Ctrl+\ to do nothing, although I still sometimes need that (can be replicated with a quick cd\, though). But Windows Explorer, in the wake of the WWW, provided us with a handy directory history and two separate ways of navigating backwards: backwards through the history and backwards through the hierarchy. Is there something quick and easy to get back to the folder I were in? This is less of an issue in C:\Users\Me (still nagging) but more so in deeper hierarchies.

Read the article

< Previous Page | 1 2 3 4 5 6 7 8 | Next Page >