Date: 01/11/10 (IT Professionals)    Keywords: linux

I'm having issues with my network, the environment consists of windows, solaris, linux and mac. The issue seems to be, any machine that is connected to the wireless network is unable to access any other machine on the wireless network.

Wireless machines can communicate with wired machines.
Wired machines can communicate with wired and wireless machines
Wireless machines can not communicate with wireless machines.

I have a Cisco Aironet 130AG Series Access Point handling the wireless traffic and a cisco 2960 48 port switch handling the wired network.

What could cause this lack of communication?

Source: https://itprofessionals.livejournal.com/88835.html

Date: 12/30/09 (IT Professionals)    Keywords: linux

I may have posted about this before, I'm not sure, so please accept my advance apologies...

At home, I currently run two DSL lines. Right now, we just have two separate LANs, one connected to each line, with my wife's devices attached to one, and my devices attached to the other. For a while now, I've been thinking about setting up a load-balancing routing solution to give both of us access to both lines.

I have the opportunity to acquire a refurbed Cisco Catalyst 2960 at a ridiculously low price. I also have access to a (nominally) spare quad-core 64-bit PC with 8GB of RAM. I say "nominally" because I'm thinking about setting it up as a media center / gaming rig connected to the TV in the den. That's largely beside the point, but it bears pointing out that keeping the PC available for my other needs would be a good thing.

So.

Is it going to be a more-effective solution to drop a few bucks on the 2960 and go through the hassle of learning how to set it up (and then setting it up), or would I be better off putting a secured Linux distro (e.g. gentoo-hardened, or something) on the semi-spare PC and running the load-balancing via iproute2 and friends?

Either way, I'm looking at a learning curve, and a good amount of time fannying around getting the damn thing working -- there's a good chance I'd spend almost as much cash on the PC-based solution getting good-quality network cards, and maybe fast HDD tech (though it seems like RAM and cores would be more important than disk IO).

What are your opinions?

Source: https://itprofessionals.livejournal.com/88628.html

Date: 12/17/09 (IT Professionals)    Keywords: software, linux

I have some software that does some translation from UTF-8. In Solaris the product has always run fine, but in OpenSolaris I see an error:

ld.so.1: someprogram: fata: relocation error: file someprogram: symbol_iconv_open: referenced symbol not found

Now, from what I have found out is that Solaris used a system call called: _iconv_open
and most Linux use a similar system call in libc called: iconv_open

But apparently there is a slight difference between Solaris and OpenSolaris, which causes this issue.

Does any have ANY knowledge of this? Somewhere I can look to confirm this hypothesis?

Thanks

Source: https://itprofessionals.livejournal.com/88538.html

Date: 12/03/09 (IT Professionals)    Keywords: web, linux

In my spare time I run two websites and they use joomla as I have a number of users who add content on a regular basis.

So I am looking for a link checking program that identifies 404 links. I use Linux mainly, but would be open to something on Windows. Ideally I would like this to be able to run daily, and send an email, but what ever.

Also, please, don't recommend a Joomla plugin. I have far too many plugins installed already.

Thanks in advance.

Source: https://itprofessionals.livejournal.com/88166.html

Date: 09/23/09 (IT Professionals)    Keywords: linux

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.

Source: https://itprofessionals.livejournal.com/87390.html

Date: 10/12/11 (Web Development)    Keywords: linux

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.

Source: https://webdev.livejournal.com/576507.html

Date: 02/13/18 (Computer Geeks)    Keywords: html, linux

Linux is a powerful and diverse operating system and as a result of that, naturally the screenshot tools for the platform are just as powerful and diverse. The different types of these screenshot tools available range from simple and easy-to-use to powerful command-line tools that offer the ability to script that automate the process. Screenshot is an image taken by a computer to capture the visible items on the monitor or any other output devices. There are several ways of taking screenshots in Linux but I will limit the discussion to one of the simplest and commonest means of taking screenshots in Linux thus using gnome-screenshot.

Use gnome-screenshot

Source: https://computergeeks.livejournal.com/1340546.html

Date: 01/02/11 (PHP Community)    Keywords: php, programming, css, html, web, linux

Greets,

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 :)

Let me know, and thanka.

Source: https://php.livejournal.com/680974.html

Date: 08/05/10 (C Sharp)    Keywords: linux

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

[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;
}

Source: https://csharp.livejournal.com/107180.html

Date: 08/01/10 (Apache)    Keywords: mysql, database, sql, jsp, web, linux

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?

Source: https://apache.livejournal.com/44268.html

Date: 09/01/09 (Opera Browser)    Keywords: css, html, linux

Opera 10 Build 4585
Linux slax 2.6.24.4

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.

Source: https://opera-browser.livejournal.com/77583.html

Date: 03/06/09 (Opera Browser)    Keywords: browser, css, html, linux

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?

Source: https://opera-browser.livejournal.com/75802.html

Date: 12/16/08 (Opera Browser)    Keywords: software, browser, security, linux

Opera Software released Opera 9.63 today, which addresses several security issues. This release is a recommended security update for all those running the previous stable releases. Download it now at http://www.opera.com/browser/.

Check out the changelogs for Windows, Mac and Linux/UNIX (http://www.opera.com/docs/changelogs/).

Source: https://opera-browser.livejournal.com/75441.html

Date: 02/17/07 (PHP Development)    Keywords: php, mysql, browser, css, html, database, sql, web, linux, apache

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

Required Experience:
* Enterprise scale PHP experience
* MVC (Model-view-controller) design experience
* Basic DOM Scripting experience
* Basic (X)HTML & CSS experience
* MySQL
* Multi-browser development
* Apache Webserver

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.

Source: https://php-dev.livejournal.com/75751.html

Date: 05/10/09 (See my site)    Keywords: programming, web, linux

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.

Source: https://see-my-site.livejournal.com/119635.html

Date: 06/06/18 (Open Source)    Keywords: linux

Using containers is easy-peasy. Building them, not so much. Now, Red Hat has released Buldah 1.0, an easy-to-use, Linux shell-based container builder tool.

Source: https://www.zdnet.com/article/buildah-1-0-linux-container-construction-made-easy/#ftag=RSSbaffb68

Date: 06/01/18 (Open Source)    Keywords: linux

Red Hat's strategic planning isn't like yours, but with 64 straight quarters of revenue growth and continuing on course to become the first billion-dollar-a-quarter open-source company, the Linux and cloud power is clearly on to something.

Source: https://www.zdnet.com/article/red-hats-only-business-plan-is-to-keep-changing-plans/#ftag=RSSbaffb68

Date: 05/30/18 (Open Source)    Keywords: linux

Tesla is still a long way from fully releasing its cars' full open-source programs and Linux operating system code, but it's on its way.

Source: https://www.zdnet.com/article/tesla-starts-to-release-its-cars-open-source-linux-software-code/#ftag=RSSbaffb68

Date: 05/22/18 (Open Source)    Keywords: linux

Canonical CEO and Ubuntu Linux founder Mark Shuttleworth claims Canonical OpenStack is a better deal than either Red Hat or VMware's OpenStack offerings.

Source: https://www.zdnet.com/article/ubuntus-mark-shuttleworth-pulls-no-punches-on-red-hat-and-vmware-in-openstack-cloud/#ftag=RSSbaffb68

Date: 05/17/18 (Open Source)    Keywords: linux

One of the most universally used Linux/Unix tools is now included by default in Windows 10: OpenSSH. Here's how to get started with it.

Source: https://www.zdnet.com/article/openssh-arrives-in-windows-10-spring-update/#ftag=RSSbaffb68