Im not quite sure how to describe this issue. So I'll give it my best shot. We are having an issue on our where certain people are able to access our trouble ticketing system and others arent. To elaborate on that lets say the url to access it is tickets.companyxyz.com, there are certain people on the network who can at times access it and at other times can not, while others can access it just fine all the time. I am unsure what is causing this. I feel that it may be a DNS issue. Most of the systems that are doing this are windows XP pro, the service packs range between 2 and 3, mac OSX Leopard and Snow Leopard. So far the only ones not affected are the linux systems.
Any light that can be shed or any questions to help clarify my issue would be appreciated.
Hi All, I just finished working on Xserver startup on Linux machine along with configuring kernel for that. I hope this would be helpful to guys, who hold less experience in Linux world.
Before I begin, I just want to have some words with you guys that this blog is NOT a step by step guide to do things. It's just a list of my experiments I have done with development board. So this will provide an insight to people who are facing same problems as I did. But they must know some basics of Linux.
Personally I never liked spoon feeding, some answers need to be dig up by yourself.
So let's begin with Xservers. Xservers are most important thing for Linux GUI. In Linux environment, almost all Xclients (any GUI application) request to Xserver for Screen draw and other graphical operations(like Windows, button checkbox draw/movement on screen). The idea behind Xserver and Xclient is to run a light weight server which can process and send request to graphics hardware on Host machine. Now the Xclients can run on same machine or other and request to Xserver for graphical operations.
One can find more details about X system on http://en.wikipedia.org/wiki/X_Window_System.
So Xervers can be said of two types. One is Xorg, full featured Xserver. Second one is Xfbdev, which has some limited functionality as compared to Xorg. It is a generic Xserver, which does not know about the particular hardware and uses framebuffer provided by Linux framebuffer device.
Now let's move on to kernel configuration required for kernel. The linux kernel must have support for framebuffer device and VESA driver support for framebuffer. following options should be enabled in kernel config: CONFIG_FB CONFIG_FB_VESA For Sandy Bridge architecture based boards, enable CONFIG_ACPI option too, to avoid DSDT table error.
After building the kernel, all you need to do is to copy the kernel image under /boot directory with name like 'vmlinuz-' and make relevant entries in grub configuration. In grub entry for the kernel, add 'vga=0x318' (or any other suitable vga mode) in kernel boot option. [0x318 represents standard resolution of 1028x768x32] Now install the modules under /lib directory.
Also u may need to build an initramfs/initrd, required for RHEL/ubuntu file systems. You can use dracut/mkinitramfs utility to build one.
Place it under /boot directory and add it to grub entry.
Under /boot/grub/grub.conf file, remove or comment out the line 'hiddenmenu' and set some time out. Now reboot the system.
Select your custom kernel, and press enter. Kernel should boot and give you log in prompt. I have tried it with custom file system which does not belong to redhat/ubuntu. so i got command prompt. In order to have the same, one can add 'single' in boot option for custom kernel grub entry. Ensure the enumeration of framebuffer device nodes, like /dev/fb* Now execute 'export DISPLAY=:0'. Run 'Xfbdev'. Xserver should start and give you a graphical pattern with a X on it. X represents mouse pointer.
I am starting to dabble in web programming, again, after a long hiatus. I am a Debian/Linux guy, and am hoping some folks that do web development can recommend or share which web development editors and tools they have used, liked or disliked.
I tend to use vi/emacs for programming, but think to do web site development a 'dreamweaver' or other similar tool, that helps organize and edit pages and text files for PHP, HTML, CSS, and JS would probably be better than vi or emacs :)
I am using Mono on Linux, and want to marshal the following unmanaged structure to a native one:
int type
union {
guint32 u
gint32 i
gboolean b
gdouble d
gchar * s
} value
According to Mono's excellent page on native-library interop, the way to deal with unions is to use StructLayoutAttribute with LayoutKind.Explicit and specify a FieldOffsetAttribute that is the same for all union members. So you might do something similar to this:
[StructLayout(LayoutKind.Explicit)]
public struct Rpc {
[FieldOffset(0)] public int type;
[FieldOffset(4)] public uint value_u;
[FieldOffset(4)] public int value_i;
[FieldOffset(4)] public bool value_b;
[FieldOffset(4)] public double value_d;
[FieldOffset(4)] public string value_s;
}
The problem however is this, the Mono runtime crashes when this code is run, complaining that: "you cannot have a reference field that is the same offset as another field" in an [ExplicitLayout] structure. I assume this is referring to the last member of the union which is a pointer. Thing is, I'm not sure how else to do this.
I thought about just having a "public object value;" member of the structure, and then casting this as appropriate in managed code, but the runtime apparently cannot marshal to a vanilla object this way.
I'm involved in migrating an existing, functional JSP/Struts2 app from Windows to Linux.
The former Windows environment was a Tomcat/Struts/Eclipse setup. The new environment is a standalone installation of Tomcat (which is already configured and serving several other applications).
The app in question, "MyJSPWebsite", was copied to the Linux/Tomcat webapps folder and correct permissions assigned. The database (mysql) was also copied over with user permissions established.
The site now opens, but none of the struts enabled content is functioning. For example, a drop-down list of data is not being populated. I'm not seeing any error SQL messages in catalina.out, and the username/password & query work fine from command line.
Are there separate, core struts files that have to be installed outside of those already included in the webapps/MyJSPWebsite folder?
I have not been able to figure out how to display HTML emails or feeds with white text on a black background. Can someone please tell me if there is any way to do this? I have not been able to view HTML emails or Feeds the way i want since Opera 9.27
I suspect this can be fixed by editing mime.css but I don't know how.
I just upgraded to Opera 9.63 browser for Linux, and one thing I am having trouble with is I use black backgrounds for everything and I can't figure out how to specify white text for HTML emails. So unfortunately I keep ending up with black text on black backgrounds in HTML emails, or sometimes dark gray on black. Does anyone have an idea how I can fix that?
I've tried changing all colors in mime.css to white except for the background but this only seems to work for text emails not HTML emails. Any ideas?
Schedge, an Austin based company, is reinventing scheduling.
We are looking for an experienced Lead PHP developer.
Have you developed enterprise scale PHP applications? Have you worked with technologies like AJAX and MVC?
Then this might be the position for you!
You'll be responsible for leading the development efforts of the core application. The position is contract-to-hire with the option of equity in the company.
Key Areas of Responsibility: * PHP Application and database development * Work with Designers and other Developers to build complex user interfaces and data interactions * Write/Update functional specs
Preferred additional experience: * Experience with the CakePHP (or similar) PHP framework * Flash or Action Scripting experience * MySQL clustering * Code development for Linux servers
You'll be a good fit if: * You “get the Web”, and understand it’s full potential. * Work efficiently and get it right, not just "good enough" * Can set and execute priorities individually and in a group * Effectively communicate to people of varying levels of technical expertise
Please note: This is a 100% telecommuting position but the ideal (but not required) candidate would be located in Austin, TX and available for weekly meetings.
If you feel you are a good fit for this position please send your resume and rate per hour to jobs@schedge.com
[cross posted] My apologies if you receive this post more then once.
I started a new project, microXMPP. It's a lightweight implementation of Jabber/XMPP protocol, written in ANSI C. The idea is to make XMPP protocol support applications, not applications support the protocol. Because of this, microXMPP is made as easy to use as possible, and as compatible as it could be. The code can be compiled under both Windows and Linux, and callback-based architecture avoids complex programming. Great for making XMPP bots and other Jabber client stuff!
The microXMPP project web page is http://xmppmicro.110mb.com/. All the sources can be downloaded from that page, along with documentation. In order to make things easier, a minimalist Jabber client is provided as application example. Small updates appear almost every week.
A top Linux security programmer, Matthew Garrett, has discovered Linux in Symantec's Norton Core Router. It appears Symantec has violated the GPL by not releasing its router's source code.
25 years ago, in Bob Young wife's sewing room, the most successful of all Linux and open-source software companies got its start. Young and current Red Hat CEO Jim Whitehurst share their thoughts on Red Hat's journey.
The Linux Foundation has launched the LF Deep Learning Foundation, an umbrella organization for open-source innovation in artificial intelligence, machine learning, and deep learning. Its first project is the Acumos AI Project, an AI/ML platform and open-source framework.
dd, the ubiquitous copy tool of Unix/Linux, now comes in with a decent built-in progress indicator. You can run it by the command-line option: status=progress Example: dd status=progress if=/dev/sda of=/dev/sdb Notice how I didn’t add the bs option and used the default. In my experiences the default works best. Tested on: Ubuntu
The following was observed under Firefox 3.5.8, Fedora Core Linux. While coding a form, I created the following attached CSS rule:
applied against the following (name= is obfuscated):
(text here)
(text here)
(text here)
The result should have been textarea, input, and select elements indented by 6em.
Instead only input and select were indented. When I changed the rule to:
p.explain input,select,textarea
only select and textarea were indented.
It seems that no matter the tag order, the first comma 'd term is not indented.
Questions: Am I just blind? Missing a CSS rule? Not seeing an obvious PEBKAC?
OR Is this a Mozilla.org grade bug (I suck at searching Bugzilla), which should be filed with them, or something I should report to the Fedora project and let them push it upstream? Or pull a fix downstream for that matter?