First, you need to get and install ssh on your client workstation, plus it must be installed on the remote system you wish to connect to. You can do this for your own account, or your system administrator can install it for the entire system.
Once installed, there are several ways you can use ssh, each with varying steps you must go through first.
Ssh works by the exchange and verification of information, using public and private keys, to identify hosts and users. It then provides encryption of subsequent communication, also by the use of public/private key cryptography.
How to properly secure your Cisco router with passwords
Some of the worst security breaches occur because people neglect basic security measures. David Davis discusses the importance of maintaining proper passwords on your router, explains the three modes for the Cisco IOS, and shows you how to configure the five main passwords that protect your network.
Tips for small businesses who don't want to skip security
The majority of small businesses don’t have the resources for a dedicated technology specialist, so barring a close friend or family member who happens to be a geek, there are a lot of businesses that don’t know what to do to make their operations secure. Fortunately, there are a few simple ways to make sure that your business is as secure as possible. I will cover a number of topics in this post including security relating to routers, wireless, anti virus, and malware.
Port scanning can uncover a number of holes that a hacker could use against you, we cover how to scan ports and more below.
Port Scanning is one of the most popular reconnaissance techniques attackers use to discover services they can break into. All machines connected to a Local Area Network (LAN) or Internet run many services that listen at well-known and not so well known ports. A port scan helps the attacker find which ports are available (i.e., what service might be listing to a port). Essentially, a port scan consists of sending a message to each port, one at a time. The kind of response received indicates whether the port is used and can therefore be probed further for weakness.
Setting up network protection is very important for any company that has access to the outside world via the Internet. A secure network firewall can be installed at very little cost by using a Linux server. All that is needed is a Linux server with at least two network cards.
