Nmap(Network-mapper) is an open source tool that is pretty useful for networking scanning. This tool provides various options that are useful for carrying out security audits. Nmap is a powerful tool used to check the network inventory, host uptime etc. If you are a GNU/LINUX administrator, you may find the following 10 Nmap commands extremely useful
Before we start counting the steps for troubleshooting, the first thing we have to do is, arrange networking components in a structured and systematic order. This will help us define the problem correctly and give us a clear idea about issues that happen regularly.
Most web developers & system administrators have to do SSH logins to WHM based servers to make the necessary changes there. The default port used for ssh logins is port 22. However there might be unusual circumstances where port 22 is not the default port. In such a scenario we need to identify the default ssh-port used by the server. If you are facing a similar situation then read on to know how to find out the current port being used by SSH on a WHM based server.
Some of the latest Laptops especially Dell Inspiron 5420 and Lenovo G580 series comes with Atheros Network driver which has some problem with Ubuntu 12.04. The problem is that it will not detect the wired network connection(eth0) even though wireless connection is working fine. We can solve this issue by installing the proper network driver.
Nmap is a Free Software tool that can be used for a variety of network network exploration tasks and security auditing. Nmap ("Network Mapper") scans IP packets to determine a lot of different aspects about hosts available on the network and also about services these hosts are offering. It can help you find a lot of information about these hosts including reverse DNS names, operating system guesses, device types, and MAC addresses.
BSNL is the largest provider of broadband connections in India. With a large network of optical fibre cable spanning across the country, BSNL now have footprint in every nook and corner of India. BSNL is also famous for providing flexible and quality plans for masses at cheapest rates. Types of Modem's provided by BSNL depends largely on the plans they offer.
BSNL is the largest broadband provider in India and probably the most preferred as well by the customers because of its reliable network and excellent customer service at Indian costs. Now let us take a look at the different kinds of Modem provided by BSNL. BSNL basically provides four types of Modems(CPEs). The following post will give you the details regarding the available modems in BSNL and also the customer end requirements for these modems.
One of the strange types of complaints we receive from our customers is "The system was working fine till yesterday, I had shut down the system and it is not booting now". Strange as it may sound the common feature of these support requests included burnt motherboards, non-functional PCI Card slots and sometimes burnt Ethernet cards.
BSNL is one of the leading broadband providers in India. They have managed to provide blazing fast internet connections at rates affordable to an average middle class Indian. Although they provide top quality connection speeds with very little down time, their technical support leaves a lot to be desired. More so when it comes to configuring connections in Linux.