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Wednesday, January 20, 2010

SSL Certificate Problem in Google Chrome

Stop the "page contains secure and nonsecure items" warning
(Problem: Google Chrome browser displays a yellow triangle warning icon in the right of the address bar and, when clicked, shows that the identity is verified but that parts of the page are not encrypted. Hit CTRL+Shift+J and you'll see what insecure contents it contains. HL)

Are your SSL web pages plagued by the browser warning "This page contains both secure and nonsecure items. Do you want to display the nonsecure items?"

Do you want to display nonsecure items?

This is a common error that occurs when some element on a secure web page (one that is loaded with https:// in the address bar) is not being loaded from a secure source. This usually occurs with images, frames, iframes, Flash, and JavaScripts. There are a few ways to fix it:

1. Change all URLs to https

Just open up the offending web page and search for http://. Change the references on all images, iframes, Flash, and Javascripts to https://. For example.

<img src="https://www.domain.com/image.gif" alt="" />

This may not work if you are loading an image from another site that does not have SSL set up. Also, with this method you'll be loading SSL images even when the client is loading from a non-secure page. This will add extra processing load on the server and client. This is definitely not recommended for a high volume site.

2. Change all links to // or make them relative

Rather than changing all the links to https://, change them to just //

<img src="//www.domain.com/image.gif" alt="" />

Alternatively, if the images or scripts are located on the same domain, you can access them relatively, rather than absolutely:

<img src="image.gif" alt="" />

Using this method, the browser will know that it must load the image securely if the web page is being loaded securely but it will also load the image normally if the page is not being accessed securely. The image will still need to be available on the other server securely. This is likely the best method of getting rid of the pesky "Do you want to display the nonsecure items?" warnings.

3. Change the browser settings

It is best to change the code of the page that is giving the error, but if you don't have access to change the code, you can always tell your personal web browser not to display that message. To do so follow these steps for Internet Explorer:

  1. Go to Tools, Internet Options.
  2. Select the "Security" Tab and then click on the "Custom Level" button.
  3. Scroll down until you see the option: "Display mixed content". Select "Enable".
  4. Click Ok. Then you will get a "Security Warning" pop-up. Click Yes.

One common reason that this warning shows up is using normal Google Analytics code on a secure page. It is a simple fix to enable Google Analytics on a page using SSL.

A Smail and Fast IDE

Geany : About

Geany is a small and lightweight Integrated Development Environment. It was developed to provide a small and fast IDE, which has only a few dependencies from other packages. Another goal was to be as independent as possible from a special Desktop Environment like KDE or GNOME - Geany only requires the GTK2 runtime libraries.

Some basic features of Geany:

  • Syntax highlighting
  • Code folding
  • Symbol name auto-completion
  • Construct completion/snippets
  • Auto-closing of XML and HTML tags
  • Call tips
  • Many supported filetypes including C, Java, PHP, HTML, Python, Perl, Pascal (full list)
  • Symbol lists
  • Code navigation
  • Build system to compile and execute your code
  • Simple project management
  • Plugin interface (see Plugins)

Geany is known to run under Linux, FreeBSD, NetBSD, OpenBSD, MacOS X, AIX v5.3, Solaris Express and Windows. More generally, it should run on every platform, which is supported by the GTK libraries. Only the Windows port of Geany is missing some features.

Running Ubuntu on an Active Directory network

Running Ubuntu on an Active Directory network - Computerworld Blogs
Steven J. Vaughan-Nichols
Cyber Cynic
More posts | Read bio

It's always been possible to get Linux desktops to work on Windows-based networks. I do it all the time. But, it's not a job for an average Linux user or a Windows network administrator's whose MCSE (Microsoft Certified Systems Engineer) certification still has wet-ink. Now, though, Canonical, Ubuntu parent company, is partnering with Likewise Software to make it easier.

Likewise is the creator of Likewise Open. This is an open-source program that lets Linux and Mac users authenticate against and join Active Directory domains and forests. It also enforces AD (Active Directory) password policies across Linux systems.

You don't have to take their word for it. I've been using Likewise for years, and it works quite well. Now, Ubuntu is going to be including the latest version of Likewise Open 5.4, in the next edition of Ubuntu, Lucid Lynx.

I like this plan a lot. While I've not always been happy with LikeWise. I'm still not crazy about their competiting with Samba with their own CIFS (Common Internet File System) server; they do a really nice job with AD integration for Linux.

So, if you've been pondering including Ubuntu Linux desktops in your Windows network, start playing with Lucid Lynx and LikeWise Open. If you like what you see, and I think you will, you might start planning on deploying them sometime in 2010.

Need help getting it to work? Likewise offers support options for Likewise Open. If you like what you see, LikeWise also offers, as a commercial product, Likewise Enterprise.

Likewise Enterprise essentially makes your Linux and Mac boxes into full-fledged members of your AD domain. That is to say you can use group policies to manage them, enable SSO (Single Sign-on) for applications and import directories. In addition, you can manage and audit AD from your Linux box with Likewise Enterprise.

All-in-all, I've found it over the years to be an impressively network management package, and I'm really look forward to seeing how it all comes together in April when the full Lucid Lynx distribution goes into production.

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