Website Development

I have a centos 4.5 powered VPS that was running out of memory at peak times and so I decided to take a look at using squid to reverse proxy apache. When squid is used as a reverse proxy all http requests are proxied through squid to apache. The advantage of this setup is:

I am using google adsense on a few of my sites and I have learned a thing or two about how to make a decent amount from it:

• Blending in is key: This is a widely cited tip but it is worth repeating. It is important that your adsense ads blend in with the rest of your site. Among the things you can do are:
  • Make the ad border colour the same as the page background colour. This way the ad doesn't appear as a separate block but as part of your content.
  • The links in the ad should have the same colour as the links on your site.
  • Similarly the ad background and text colour should match those of your site
• Less is more: Google allows you to place multiple ad units on a single page but it is best if you stick to just one. This is because if there is just one ad unit Google will place the highest paying ads in it. This will improve your earnings per click or CPC.
• Location, Location, Location: Since you have just one ad unit to work with you should place it very carefully. The best way to do this is to wrap your content around your ad unit. I also find that positioning your ads in the middle of your webpage draws the most eyeballs and clicks.

Most websites on the Internet can be accessed using both just their domain name and the www subdomain and domain name. For ex: www.example.com and example.com may lead to the same website. Some search engines consider the www version and the non-www version to be seperate websites and assign different Search Engine Results Page (SERP) positions and or page rank to them. This often results in a split page rank where the non-www and www versions of a site have different page rank. To prevent something like this from happening it helps to canonicalize your website URL. This means that you should select one version as a standard and redirect from the other to it.

I have heard a lot of webmasters rave about sNews so I decided to try it out. sNews aims to be a simple and minimalistic Content Management System (CMS). It tries to provide the 20% of features that people use 80% of the time.

Often when switching hosts or signing up at new host you'll have to set your domain's name servers to your new website host's name servers. This step is necessary because it allows your new host's servers to receive and serve requests for your website from your visitor's browsers. However the Domain Name System (DNS) is such that it takes time for this new mapping between your domain name and your host's servers to propagate across the Internet. Depending on your new host's DNS servers and your Internet Service Provider it can take anywhere from a few hours to a few days before you will be able to access your website via the domain name. If, in the meantime, you want to upload files to your website and test it you will need to edit your Windows HOSTS file to manually map your domain name to your web host's IP address.

The first step is finding out the IP address of your new host's servers. A lot of enlightened hosts include this information in the email they send you when you sign up with them. In that case you can skip to the next step. But if your host does not provide with this info then you will have to do an ns lookup:

• Go to http://www.kloth.net/services/nslookup.php
• Type in your domain name, your web host's DNS name server and make sure that the query field says ip address.
• Click on lookup and you should see your site's new ip address.

Next open up your windows HOSTS file using your favourite text editor such as notepad. You can open this file by copy pasting %systemroot%\system32\drivers\etc\HOSTS into your editor's open file window. In most cases you can also try C:\WINDOWS\system32\drivers\etc\HOSTS . Keep in mind that the file has no extension.

Open up the file and on a new line type in your host's ip address followed by a space and your domain name. For ex:

208.113.192.208  websitetheme.com

You may also prefer to add the www version:

208.113.192.208 www.websitetheme.com

Save the file and try to access your site by typing in your domain name in your favourite browser. It should work now! To enable ftp access add another line with the ftp subdomain:

208.113.192.208 ftp.websitetheme.com

Using this technique you should be able to access your site while DNS is being propagated.