PRICING. 25 Useful IPtable Firewall Rules Every Linux Administrator Should Know. Managing network traffic is one of the toughest jobs a system administrators has to deal with.
He must configure the firewall in such a way that it will meet the system and users requirements for both incoming and outgoing connections, without leaving the system vulnerable to attacks. This is where iptables come in handy. Iptables is a Linux command line firewall that allows system administrators to manage incoming and outgoing traffic via a set of configurable table rules.
Iptables uses a set of tables which have chains that contain set of built-in or user defined rules. Thanks to them a system administrator can properly filter the network traffic of his system. Per iptables manual, there are currently 3 types of tables: GUI of Iptables. One side of iptables and netfilter that we haven't looked at very much yet, is the graphical user interfaces that are available for iptables and netfilter.
One of the biggest problems with this is that netfilter is a very complex and flexible setup, that can perform the strangest of tasks. For this reason, it can become a very daunting task to create a GUI for netfilter. Several persons and organisations have tried to create GUI's for netfilter and iptables, and some have succeeded better than others, while others have given up after some time. All have different reasoning behind their tries as well, so it isn't an easy task to show them all.
However, this chapter is a small compilation of some of the GUI's for iptables and netfilter that may be worth looking at. Firewall Builder, or simply fwbuilder, is an extremely versatile and powerful tool that can be used to build your own firewalls, or to maintain several firewalls for that matter. 20 ways to Secure your Apache Configuration. Here are 20 things you can do to make your apache configuration more secure.
Disclaimer: The thing about security is that there are no guarantees or absolutes. How To Install and Configure Sphinx on CentOS 7. Introduction Sphinx is an open source search engine that allows full-text searches.
It is best known for performing searches over large data very efficiently. The data to be indexed can generally come from very different sources: SQL databases, plain text files, HTML files, mailboxes, and so on. Some key features of Sphinx are: High indexing and searching performanceAdvanced indexing and querying toolsAdvanced result set post-processingProven scalability up to billions of documents, terabytes of data, and thousands of queries per secondEasy integration with SQL and XML data sources, and SphinxQL, SphinxAPI, or SphinxSE search interfacesEasy scaling with distributed searches In this tutorial, we will set up Sphinx with MySQL server using the sample SQL file included in the distribution package. Prerequisites Before you begin this guide, you will need: Step 1 — Installing Sphinx At the time of writing, the latest Sphinx version is 2.2.11.
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21 Top Low End Cloud Server Providers with Hourly Pricing. In this article you’ll see 15+ cloud server providers offering cloud vps at low end price range (or shortly saying: affordable). I’ve collected what I can find during my searching so the list will not stop here. You can add another provider if you know one that is not in my list. The main criteria is it must have at least a plan priced under $10. p.s: So you will not see Linode in my list (I just hate the fact they don’t accept PayPal yet). The list below is not in ranking order, provider listed #1 doesn’t mean better than provider listed #5 and vice versa and so on and so on.
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