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Archive for the 'Security' Category

Access Network When Everything Else is Blocked Using ptunnel

Posted by Admin on 16th January 2008

Ptunnel is an application that allows you to reliably tunnel TCP connections to a remote host using ICMP echo request and reply packets, commonly known as ping requests and replies. At first glance, this might seem like a rather useless thing to do, but it can actually come in handy in some cases. The following example illustrates the main motivation in creating ptunnel:

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Posted in Network, Security | 1 Comment »

Lynis – Security and system auditing tool

Posted by Admin on 24th December 2007

Lynis is an auditing tool which tests and gathers information from Unix based systems. The audience for this tool are security and system auditors, network specialists and system maintainers.

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Posted in Security | No Comments »

ssh on multiple servers Using cluster ssh

Posted by Admin on 29th November 2007

Cluster SSH opens terminal windows with connections to specified hosts and an administration console. Any text typed into the administration console is replicated to all other connected and active windows. This tool is intended for, but not limited to, cluster administration where the same configuration or commands must be run on each node within the cluster. Performing these commands all at once via this tool ensures all nodes are kept in sync.

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Posted in General, Security | No Comments »

Securing Cisco Routers by Disabling Unused Services

Posted by Admin on 12th November 2007

On Cisco routers, a whole bunch of services come enabled by default.your first order of operation would be to ensure that the all unused services are disabled.

Now we will see how to disable some services on cisco router for security purpose.

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Posted in Security | No Comments »

SSH your Debian servers without password

Posted by Admin on 28th December 2006

Secure Shell is a program to log into another computer over a network, to execute commands in a remote machine, and to move files from one machine to another. It provides strong authentication and secure communications over unsecure channels. It is intended as a replacement for telnet, rlogin, rsh, and rcp. For SSH2, there is a replacement for FTP: sftp.This might be useful if you are trying to connect everytime to your server remotely.

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Posted in General, Security | 7 Comments »

Protect Ubuntu Desktop From Viruses Using AVG Antivirus

Posted by Admin on 22nd October 2006

AVG Free Edition is the well-known antivirus protection tool. AVG Free is available free of charge to home users for the life of the product. Rapid virus database updates are available for the lifetime of the product, thereby providing the high level of detection capability that millions of users around the world trust to protect their computers. AVG Free is easy to use and will not slow your system down (low system resource requirements). Highlights include automatic update functionality, the AVG Resident Shield, which provides real-time protection as files are opened and programs are run, free Virus Database Updates for the lifetime of the product, and AVG Virus Vault for safe handling of infected files.

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Posted in Other Linux, Security | 39 Comments »