This article is very important in webhosting technical management. Read this for brief understanding about the “/tmp” directory. The “/tmp” directory is a special directory that is required to be writeable by all users and processes on the system located in web hosting directory. In general, directories that are writable by all users and processes are cause for security concern, however this directory is a special case. To minimize any security impact as a result of having an unsecured “/tmp” directory, it is recommended that “/tmp” be mounted on a seperate partition in order to take advantage of the “no exec” option available under both Linux and FreeBSD. If a separate mount point exists for “/tmp”, then the web hosting installer will verify and potentially remount the partition with the “no exec” option. Additionally, the installer will ensure that the sticky bit is set on the directory and that the other permissions are correct. If “/tmp” is not mounted on a separate partition, the installer will create a file system disk image of 512 Mb and mount “/tmp” on the newly created disk image with the “no exec” directive. Under most circumstances, 512 Mb is sufficient for the “/tmp” partition; however, your system may require additional space. It is therefore recommended that you include a separate partition for the “/tmp” mount point (sized according to your size specification) prior to installing cPanel.

cPanel should only be installed on a blank server with a fresh operating system install. cPanel makes many changes to your system including downloading needed packages and configuring them for you. Because of the considerable amount of changes that cPanel will make to the system, the suggested method of uninstalling the cPanel software is to reformat the server. The hostname of this server should be a Fully Qualified Domain Name that will not be used elsewhere on the server. You should never set your hostname to an name that is already used (www, ftp, mail, etc) or to the name of an account on the server (www.domain.com).

The ubiquity of IP as a networking technology at the customer premises opens the possibility of deploying a vast range of innovative converged voice and data services that simply cannot be cost effectively supported over today’s PSTN infrastructure For service providers examining the business case for VoIP.

•IP-based internet applications, such as email and unified messaging, may be seamlessly integrated with voice applications

•IP centrex services allow network operators to provide companies with cost effective replacements for their ageing hosted PBX infrastructure

•VoIP services can be expanded to support multimedia applications, opening up the possibility of cost effective video conferencing, video streaming, gaming or other multi-media applications. What is more the traditionally open interfaces and enterprise culture surrounding IP networking results in reductions in cost, and gains in productivity and time to market for service providers.

•The flexibility of next generation platforms allows for the rapid development of new services and development cycles are typically shorter than for ATM or TDM-based equipment.

•VoIP products based on the MSF architecture, unlike legacy TDM switches, often support open service creation environments that allow third party developers to invent and deliver differentiated services.

•Third parties may develop applications and services for end users on open architecture CPE devices such as PCs. By co-operating with such third parties network operators stand to gain increased revenues from the explosion of innovative services that this advance is likely to trigger. In addition the consolidation of voice and data in one network can significantly reduces cost.

•VoIP leverages data network capacity removing the requirement to operate separate voice and data networks.

•IP equipment is typically faster and cheaper than ATM or TDM-based equipment – a gap that is increasing rapidly every few months.

•Re-routing of IP networks (e.g. with MPLS) is much cheaper than, say, SDH protection switching.

Whatever the justifications, most service providers recognize that VoIP is the direction of the future. however when looking at a future PSTN scale solution service providers must ensure that the following key requirements are met to provide equivalence with the PSTN:

•Security

•Quality of Service

•Reliability

•Migration path

•OSS support

•Billing

•Network Interconnection

These issues are by no means simple and in many cases have delayed roll out of VoIP services. we should look in more detail at these problems and consider at a high level how they might be addressed.

Fast flux webhosting is a serious and mounting problem that can affect name services in all TLDs. SSAC encourages ICANN, registries and registrars to consider the practices mentioned in this Advisory, to establish best practices to mitigate fast flux hosting, and to consider whether such practices should be addressed in future agreements, please protect your web hosting directory. SSAC offers the following findings for consideration by the community:

1) Fast flux web site hosting enables a highly sophisticated attack launching infrastructure that increasingly exploits domain name resolution and registration services to abet illegal and objectionable activities.

2) Current methods to thwart fast flux hosting by detecting and dismantling botnets are not effective.

3) Double flux further thwarts detection and hampers measures to shut down fast flux website hosting web sites.

4) Frequent modifications to name server (NS) records by a domain name registrant and short TTLs in name server A records in TLD zone files are signatures that can be monitored to identify potential abuses of name services.

5) Measures that prevent automated changes to DNS information and that set longer minimum TTLs for name server A records in TLD zone files appear to be effective but are not uniformly practiced.

6) Additional measures have been suggested to combat fast flux hosting and merit further study.

Optimizing a domain or website for better search engine ranking primarily involves regular editing of its content to both increase its relevance to specific keyword being used in search queries and to encourage more frequent indexing by search engines. However, the rules for Search Engine Optimization (SEO) are fluid and constantly change because search engine operators try to counter ‘gaming’ – the forcing of results to higher rankings than their perceived value in the specific search conducted.

Search engine optimization has developed into a huge industry with agencies and specialists analyzing and employing a set of techniques in an attempt to bring together human-readable content and computers that evaluate the relevance of that content. Why is this? Traditional websites lack a standardized structure and also focus on strong visual presentation of content to capture the interest of the viewer/researcher, not necessarily focusing on data. As a result, search engines need to apply complex algorithms to determine whether those websites might be useful for visitors, evaluating a number of variable characteristics. Added to this, the multi-lingual nature of websites, and the differing purposes of Internet searches (someone might be trying to find an address or telephone number of a veterinary surgery, the other a video of kittens playing the piano), and you immediately get a matrix of global possibilities without structure. SEO experts and SEO Service aim to address these unstructured possibilities to try to bring your domain or website to the top of the search results matrix and keep it there.

The software enables the administrator or webmaster of a web site to receive and respond to text communication from multiple users of the web site. It is commonly used as a way for webmasters/site owners to instantly engage their website visitors; done both in a reactive and proactive fashion. By using this type of software, webmasters often are anticipating: a) increased interactivity and trust with the website visitor via live chat;

b) (if an E-commerce site) increased sales/conversions.

From a list of live support software/live chat software (applications), there are some that use JavaScript, Java or Flash Player to run directly inside the browser. These online applications differ from classic software mostly because Website visitors don’t have to install anything on their PCs and they can communicate freely with website’s online agents. There are also live support software that goes beyond basic text chat, and offer such advanced communication capabilities as true VoIP (Voice over IP), application sharing, remote view, real-time website traffic monitoring, and remote form filling.

The majority of live support applications open in a window and connect the user to a member of “call center” staff. The more advanced scripts allow the users to be queued, so that one member of staff can deal with a customer and then automatically move on to the next customer. The customer’s position in the queue is sometimes displayed.

Live support applications are typically written using PHP and ASP.NET utilizing backend databases such as MySQL and Microsoft SQL Server. PHP and MySQL are commonly used due to the fact that they are open source and effectively free. Making it highly probable that companies webservers will have the capability to run PHP scripts. As stated before a wide variety of techniques are used to create the display which the user receives.