TetraHost Bangladesh

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Author Archives: aDmin

26 Oct

CSF Firewall, version updated!(csf v5.11)

CSF firewall commonly known as Configserver Security and Firewall has become one of the popular firewall not just because of its easy of use it also provides a cpanel interface and can be easily installed and tuned by any users.

Yesterday, we upgraded CSF to latest version which is 5.11 to offer more protection to our client.

Here are some major changes in the new version:

Added a new 7th argument to BLOCK_REPORT that includes the log lines that triggered the block (excludes LF_NETBLOCK and LF_PERMBLOCK)

Added new CLI option csf –tempallow (csf -ta) which works in exactly the same way as csf –tempdeny (csf -td) except it provides a method of temporary IP allows for a given duration. csf -t, csf -tf and csf -tr now apply to both deny and allow entries

Allow the use of a duration suffix in csf -ta and csf -td for m, h and d (minutes, hours and days). Only one suffix allowed and only integers

Updated UI entry for adding and removing temporary allows and blocks

Display temporary block TTL in days hours minutes and seconds

Added new CLI option csf –watch [ip] (csf -w [ip]) and configuration option WATCH_MODE. This new option logs SYN packets from a specified source as they traverse the iptables chains. This can be extremely useful in tracking where that IP is being DROPed or ACCEPTed by iptables. See readme.txt for more information

Modified csf and lfd init scripts to be LSB-compliant

Modified BOGON/DSHIELD/SPAMHAUS block list retrieval to only download the list if it has not already been retrieved within the configured interval. This is to help prevent blacklisting by the list provider for repeated downloads after frequent lfd restarts

Fixed problem with csf -q and csf -sf not restarting the firewall if there was a previous startup error.

10 Oct

How to choose a Good Domain Name

The domains are registered regularly at a record level, new domain expansion and innovative thinking still offer thousands of brilliant choices. However while looking for a desired name it is important to consider the purpose of a domain name first and it should be shorter and memorable that enable your visitor’s to reach your website easily.

Consider following points before registering a domain name;

Short & memorable: – People don’t remember longer domain name easily, the shorter your domain, name, it would be easy to remember and also it minimize the chances of typographical mistake while your users typing it to reach your website. Also consider a domain name which has marketability so that you can brand them easily.

Momentous – A short domain is not worth without connotation, like if you go for 4xf0l.com it would be not easy to type or remember. Select a domain that narrates and reflects your website in their domain name so that people can understand and remember them easily such as flickr.com, twitter.com in this case.

Apparent & Concise –Clear & precision are vital factors when choosing a domain name, it should sounds well and should be effectively communicated over the phone.

Exposure: In order to take full advantage of your sites exposure, consider to include matching keywords in your domain unless you’re going to consider a very short, clear and meaningful domain name. Even two words that which can best describe your web site are good to go with, however avoid using dashes, underscores and numbers into them. It would be best if you perceive both the human and search engine while deciding a domain name to buy.

Best Domain Extension: Select best domain extension like .com is still the best choice and similarly .net could be the best second desired choice although you may also consider country specific tld like .com.bd, co.uk, .us, .asia or .us In case if you have planned to target a country or region like for example if you’re developing a site to target BD country specific you should go for .com.bd

07 Sep

Gmail-Call Phones Features

Until now, Gmail voice and video chat makes it is easy to connect with people using your computer’s microphone device  however this required both people are connected through their computers at same time,  signed through Gmail.  It’s generally not possible to spend all the day in front of our  computers,  Google find out the way  “you could call people directly on their phones” without any hurdle.

As per Google, the Calls to the U.S. and Canada will be free at least the rest of the year and calls to other countries will be billed at very low rates. Google is trying to make these rates really cheap with calls to the U.K., France, Germany, China, Japan—and many more countries—for as little as $0.02 per minute.

gmail call
Dialing a phone number will work just like a normal phone. You need to just click “Call phone” at the top of your chat list and dial a number or enter a contact’s name.

Google is testing this feature internally and have found it to be useful in a different situations enabling  you to make cheap international calls right from Gmail.

For more information, check out this link gmail.com/call.

01 Sep

Uptime Report, August’2010

The server “Hera” ran very fine in the month of August. There was no downtime and our per minute monitor check recorded 100% uptime, Yahoo!

Server Name: Hera
Month: July
Monitor Period: 1min interval
Uptime Monitor Site: http://www.pingdom.com/reports/o8tg5oi83rib/

Please see the below image and verify our uptime record:

31 Aug

cPanel’s Fantastico Programs Updated!

We have just update Hera’s Fantastico Programs with latest version. It includes latest Joomla and WordPress version. If you are using any scripts from Fantastico then please update them by login to your cPanel.

Current version is De Luxe 2.10.4 r41.
Fantastico De Luxe 2.10.4 r41 (LATEST and STABLE releases)

Updates:
Coppermine Photo Gallery: 1.4.26 -> 1.5.6
Joomla 1.5: 1.5.17 -> 1.5.20
Moodle: 1.9.8 -> 1.9.9
Soholaunch Pro Edition: 4.9.3 r17 -> 4.9.3 r41
TikiWiki: 4.1 -> 4.3
WordPress: 2.9.2 -> 3.0
Zen Cart: 1.3.9b -> 1.3.9d

27 Aug

Understand your website traffic!

Ok, you have launched your online business and also spent money on ads and publicity. Now the question arises as to how effective your marketing has been and whether your site is reaching the right audience. This is where your website statistics tools come in. Nowadays various Web statistics tools can provide you with flood of information. It is up to you to analyze and use them to your advantage. Some common terms associated with Web statistics are:

Hits: Hits refer to the number of times that a page, image, or file on your site is viewed or downloaded by someone.

Visits: It gives you’re the number of each new incoming visitor to the web page who was not on your website during the last 60 to 90 minutes

Uniques: It refers to number of client hosts that come to visit the site and visit at least one page.

Most control panels like cPanel come with inbuilt tools like Awstats, Webalizer which provide you with easy to understand data. Apart from above give data, you can also get information as to from which country is your site most viewed from, the most popular page on your site, bandwidth consumption, and lots more.

If you want to keep your site up in popularity ranks then you definitely need to make use of these statistics about your Website traffic.

27 Aug

Cron Job, what is it?

Cron is basically a task scheduler, which runs your selected job at a particular time of day. They are great tools to do repetitive tasks which you might not remember or simply don’t want to do manually. The actual cron jobs are stored in file called crontab. You can directly edit this file from shell or use your control panel’s cron tool to set your crons.

This is what a typical crontab file looks like:

0 * * * * /bin/php –q /home/user/public_html/email//send_emails.php

0 * * * * /bin/php –q /home/user/public_html/email//send_emails.php

You can almost do any kind of job with crons. Some of which are :

Backing your database
Sending mails to your members
Cleaning temporary files
Updating softwares
Running applications.

As a small example, suppose you have a website of your own, with many clients. You need to periodically mail them about new rules, etc. You can run the cron services for this depending upon the needs, you can have it send mails, either hourly, daily or weekly. If you have a website for enthusiasts, cron helps the clients by providing info for any upcoming events and sends notices to them about the events taking place.

23 Aug

What is Link Juice?

Search Engine Optimization has opened up newer varieties of terms, which are applicable to different websites to help them become popular and therefore increase the number of hits. One of them is Link Juice. Greg Boser in his site Web Guerilla coined the term.

The trendy name attracted a lot of people. The scientific term is actually known as ‘pass through ratio’. But Link Juice sounds more stylish and therefore catching. It is the quality or weight that a site receives through links from other websites. This is usually carried out by newer websites to increase the traffic. This strategy for building up links, if it goes well, may result in your website being displayed in the first two pages of Google which is bound to boost the hits on the website.

Link Juice or the link building strategy can be performed in many ways. It can be bought from other sites but it is possible that the site will not get any hits if the links turn out useless. To make other sites link to your website, you can organize contests, games that can keep users glued to the site or give away something for free; like for example ‘answer a question correctly’. Blogging is a brilliant way of increasing the links as lots of users are attracted to blogs and you can promote your site through them. You can also send out links in social networking sites where information is passed on.

Link Juice, if planned and executed well can lead to a good amount of revenue from your site.

23 Aug

What is Google PageRank?

Google pageRank is essentially an algorithm that was developed by Larry Page and Sergey Brin in the late 1990s at the Stanford University as a part of a research project. Though, presently Google owns the name pageRank, its patent rights still lie with the Stanford University. Despite the fact that there are various tools and techniques available to Google for its web searching procedure, the pageRank is still the most important foundation.

The system of algorithm, which is followed by the functioning of pageRank, is mainly analytical in nature. It basically allocates a sort of a statistical emphasis to each of the page that is connected to a network of other pages in the World Wide Web. The basic intention of carrying out this procedure is to determine or evaluate the relative significance of a particular page or a hyper linked document within the existing network. The procedure involved in assessing this weighing up takes in to account a unique form of voting system where each and every interconnected set of pages are considered both as a candidate as well as a caster. To be more detailed, every hyper linked page is scrutinized thoroughly to find out the other pages to and from which they are hooked up. In the process, every link from a particular page to another is regarded as a ballot for the later page by the former. Thus, pages with maximum links end up enjoying a high pageRank represented as PR(page) and so on.

22 Aug

What is Google Adsense?

Advertisers on the internet are asked to register with Google AdWords. The AdWords then research the ads and make them ready to be published on the sites. Google Adsense is a program run by Google. It serves those ads to websites. This program is available for enrollment where website users can sign up and enroll for the ads. Website owners get banner, texts and video ads through this program. Website owners earn money on a per-click basis.

Though Adsense website owners get ads suitable and relevant to the website and the ads are precise and therefore don’t look bulky. Javascript is used by Adsense to integrate advertisements. Website owners have the freedom to choose the ads to be displayed on the website after Google displays ads suitable by indexing and searching through its database on AdWords.

Google Adsense is an important revenue developer for small sites that lack resources. Though the content has to be rich for even small sites to get hold a good amount of advertisements and therefore the revenue.

Google acquired Applied Semantics in 2003. Wordnet was the original technology that was developed and its variation came to be used by Oingo, a small search engine founded in 1998. It later changed its name to Applied Semantics. Google Adsense is a popular program that helps many website developers.