$ /etc/init.d/apache2 restart After configuring Apache server settings on the name server, you may encounter a message "[warn] NameVirtualHost 192.168.1.3:80 has no VirtualHosts" The issue may be due to more than one entry of NameVirtualHost lines in the configuration settings. You can find this out by $ grep NameVirtual * -R site1:NameVirtualHost *:80 site2:NameVirtualHost *:80 Linux Solution: Remove one of the occurance of the NameVirtualHost and the warning message that you receive will vanish.

Part 3: Factors that Affect Search Engine Ranking o Domain Extension - New extensions are not always immediately recognized by the search engines. This was a problem for .cc and .biz sites in the early going. o Sub domains - If your web site is 'mysite.network.com, and 'network.com' has engaged in any unsavory search engine spamming, your site will be affected. o Always get your own domain, even if you use a sub domain for your shopping cart, etc... o IP Address/Range - This is a bit like the last point. If the search engines have had problems with many sites from one hosting company, they may degrade all the sites from that company’s IP range. It makes the hosting companies behave. o "Domain in use since" The longer it's live the better it's generally viewed. Kind of a respect thy elder’s thing... o Negatives That Affect Your Position Within The Search Engines o Broken links - Internally and outgoing. o Meta tag Stuffing – Having large bloat of text in Meta description or keywords. o Irrelevance - If you use irrelevant keywords, description with regards to the content of the site. o Tiny Text. - If you use text that is too small for the eye to see. o Invisible Text - Text the same color as the background. o Meta Refresh Tag Redirects - Where when you try and get to one page, but the address changes to a different one. o Excessive Search Engine Submission - over submitting may get your site banned. o Frames - Be careful when you use them. You need to embed key terms in them, because generally, the search engines can only see the frame, and not the primary content that you see as visible. o Missing Alt Attributes - This is a mandatory code element for img tags and is viewed as bad coding. o Compounded Words in the content, or tags will not help the web site for individual terms - i.e. - 'specialriskinsurance' as opposed to 'special risk insurance' or ‘special-risk-insurance’. o Excessive punctuation in the TITLE and description tags - wastes precious space, and some characters are ignored or may cause a problem with the spider (the pipe "|" is a great one that should be avoided).

A JAVA program file can only contain one public java class and this should be named the same as the java file itself. There can be any number of classes with / without other modifiers. Classes without any modifiers will get compiled even if the name of the class does not match the name of the java program file. (more…)

Part 2: Things Search Engines Look For in brief ~ Link Popularity (Check Page Rank in Google's case). ~ How may other web pages around the Internet point to your web site? ~ Are these pages related to each other? ~ Are they considered valuable resources? ~ Anchor Text of inbound links ~ Does the link to your web site have relevant keywords in it? ~ Even if it is not directly relevant, a web page that is important that links to your site will still help your web site. ~ Presence on marked authority pages. (DMOZ) ~ Url quotation - i.e. when a page mentions the site by url but doesn't link to it. This commonly occurs in news articles that mention web sites. While it doesn't count as a link, it does count as a reference.  Number of links on pages linking to this page. If the link to your web site is the only one from a page, it's viewed as being more valuable than being one link among 100. ~ Freshness of links on pages linking to your web site. While the engines will count all links, a link from a web site that has not been updated in a year or two will be less valuable than from one that is updated daily. It indicates activity / interest levels. ~ Page Last Modified (Freshness) - just like the last point a page that is updated frequently is favored. ~ Reciprocal Links- Search engines like to see a closed loop - that a referring site as also used as a reference. So when you are giving away a link, ask for one back. It will help both websites. ~ Keyword frequency across all pages. Does the content really talk to the subject which the page and the web site is supposed to be about? ~ Keywords in the url: Using keywords in the url does have an effect for the search engine algorithms. ~ You can use keywords in the filename. For example if the page is about ford parts, then call it "http://www.sitename.com/car-parts.html" use dashes "-" and not underscores "_" to separate words in filenames. ~ Response Time - If your site is fast, it's favored. ~ Server Downtime - If the search engine robot comes by and frequently can't connect sometimes, they penalize your site. ~ Page Size - The engines tend to weigh content at the start of a document more than content further down. If a page is long, look at breaking it into sections. If a page is over 50k, then it's too long.

When new fileds are created as variable characters they get stored as latin1_swedish_ci as default. To change the default collation users will have to manually select the collation of their choice from the mysql admin interface such as in the case of phpmyadmin or will have to denote it in sql queries. To make a specific collation as the default, other option to give mysql an indication of it by having the needed collation name in my.cnf (mysql configuration) as shown below Edit my.cnf: [mysqld] collation_server=latin1_general_ci (more…)

Part I: Things Search Engines Look For in brief Each search engine weights each of these factors differently, and places the emphasis in different spots. Search Engines Look For: ~ Title tag - You need a relevant title, not just "Home Page" and use it with keywords, description all across the site ~ Headings h1 … h6 - The search engines view < h> tags as being terms of emphasis - they give weight to the words within them. Put key terms in them. ~ Bold - Of lesser importance than < h> tags. the < b> tags still emphasize terms of importance. ~ Alt text - Use descriptive short sentences in your alt tags. If it's a picture of a rose, and you're a florist try "Red Rose - Available at 'name' Flower Shop" ~ Email addresses on page - if you put up an address, make sure the domain name in the address matches the web site domain. ~ Keyword meta tags - Some engines use them directly, some check them as part of a validation process to check if they match with the content. ~ Meta description tag - Most engines look at this tag. Use distinct ones throughout your site, and distinct ones for each page. Make them particular to that page. ~ Key term placement - Terms that are higher up on a page are more heavily weighted. ~ Key term proximity - Terms that are close together are probably related, and thus the site will show up in searches for those terms. ~ Comment tags - Some engines use comment tags for content. Most engines look for them in graphic rich / text poor sites. ~ Page structure validation - proper coding is likely to be of better overall quality, and thus rewarded. ~ Traffic/Visitors - The search engines do keep track of how many people follow their links.