Ssh, linux

Tuesday, 20 December 2011

Shares Files Using HTTP Protocol - Qweborf

Transferring files from one computer to another on a network isn't always a straightforward task. Equipping networks with a file server or FTP server or common web server is one way to simplify the process of exchanging files, but if you need a simpler yet efficient method, try Qweborf, Qweborf is a small GUI based application that facilitates transfer of files across networks and only requires the recipient of the files have a Web browser.

Qweborf provides an easy to use interface to share local files using the HTTP protocol weborf as web-server. It can enable writing on the server, webdav and authentication.

Qweborf Installation:
Open the terminal and type following command to install Qweborf:

sudo apt-get install qweborf

Multiple GNOME Terminals in one Window - Terminator

07:30 No comments

Terminator, multiple terminals in one window. The goal of this project is to produce a useful tool for arranging terminals. It is inspired by programs such as gnome-multi-term, quadkonsole, etc. in that the main focus is arranging terminals in grids (tabs is the most common default method, which Terminator also supports).

Terminator gives the possibility of having multiples terminal within the same window. As such, it makes it easier to handle multiple terminal sessions as for instance, working in one console and monitoring another one without constantly switching from a window to another.

Terminator Features:
* Arrange terminals in a grid
* Tabs
* Drag and drop re-ordering of terminals
* Lots of keyboard shortcuts
* Save multiple layouts and profiles via GUI preferences editor
* Simultaneous typing to arbitrary groups of terminals

Secure Proxy to Surf the Web Anonymously on Linux - Anon-Proxy

07:30 No comments

Anon-Proxy contains the JAP client which acts as a local proxy between your browser and the insecure Internet. All requests for web pages are handled by JAP and are encrypted several times. The encrypted messages are sent through a chain of intermediate servers (named Mixes) to the final destination on the Internet.

Multiple layers of encryption protect all messages. A Mix collects messages in a batch, totally changes their appearance (removes one layer of encryption) and forwards them all at the same time, but in a different order. An adversary may observe all communication links, however he cannot determine a relation between incoming and outgoing packets. A surfer remains anonymous within the group of all users of the service.

Demonstrably, the Anon-Proxy protects your privacy as long as the Mix works correctly. Each message passes through several Mixes and the entire chain of Mixes has to be corrupt to successfully observe the user's activities. The chaining effectively prevents single Mixes from observing. This is the meaning of strong anonymity: Even the anonymity service itself cannot spy on its users.

Block Brute-Force Attempts on Ubuntu Linux - Fail2Ban

07:30 No comments

Fail2ban operates by blocking selected IP addresses that may belong to hosts that are trying to breach the system's security. It determines the hosts to be blocked by monitoring log files (e.g. /var/log/pwdfail, /var/log/auth.log, etc.) and bans any host IP that makes too many login attempts or performs any other unwanted action within a time frame defined by the administrator.

Fail2ban is typically set up to unban a blocked host within a certain period, so as to not "lock out" any genuine connections that may have been temporarily misconfigured. However, an unban time of several minutes is usually enough to stop a network connection being flooded by malicious connections, as well as reducing the likelihood of a successful dictionary attack.

Fail2ban can perform multiple actions whenever an abusive IP is detected: update Netfilter/iptables firewall rules, or alternatively TCP Wrapper's hosts.deny table, to reject an abuser's IP address; email notifications; or any user-defined action that can be carried out by a Python script. The standard configuration ships with filters for Apache, Lighttpd, sshd, vsftpd, qmail, Postfix and Courier Mail Server.