Posts Tagged ‘SSH’

DoubleCloud ICE: the IDE for Managing Clouds

March 30th, 2015 6 comments

After almost one year of intensive development, I am happy to announce the first release of DoubleCloud ICE. It’s an integrated tool for cloud management, in particular VMware vSphere with which you can do a lot of interactions easily and quickly.

The idea was inspired by the IDEs. Once upon a time, we all used editors like vi, Emacs to write code, then compile, link, and debug them using command lines. As time evolved, the IDE came out so we can do all these tasks (actually more) nicely and efficiently in one application. The result? Better user experience and higher productivity.

MultiSSH: Productivity Multiplier for Managing Multiple Servers like ESXi

January 28th, 2014 1 comment

As I develop software, I rarely need to manage several servers using SSH at same time. If I do, I just manually connect to each server and type same commands over and over. Of course, it takes much time for the repeated work. More importantly, it’s very hard to repeat the steps consistently across multiple servers especially when there are more than 4 servers.

Categories: Applications & Tools Tags:

Hacking ESXi For SSH Login Without Password

November 22nd, 2013 4 comments

As a powerful virtualization server, ESXi has a built-in SSH server even though it’s not enabled by default. That is what most system adminstrators use to remotely run commands there. ESXi also has a built-in SSH client so that you can ssh to other servers from ESXi. To use SSH as either server or client, you need to open up firewall. You can use vSphere Client to do it ( on host’s Configuration tab, check out the Security Profile in Software section), or simple with command line as follows.

Categories: Virtualization Tags: , ,

SSH in Python: A Quick Working Sample

November 14th, 2013 4 comments

In one of my recent consulting projects, I had to use SSH from Python. After a little research, I ended up with using the paramiko package as library.

Installing Libraries

To download the paramiko package, just check out this link. What I downloaded was paramiko-1.12.0.tar.gz. After it’s uncompressed with 7-Zip to a temparary directory, just issue the following command and the needed library got installed into the site-packages directory.


Tools That Enhance PuTTY Experience

November 3rd, 2013 1 comment

PuTTY is a very popular tool on Windows for connecting to remote server using SSH. As I used it a lot recently, I tried several tools that enhance the user experience. You may be interested in them too.

Desert Color Theme to Better Highlight Information

My experience with PuTTY has been pretty good except that the default color scheme does not highlight key information well, for example, the dark blue color for directory names on black background makes it hard for my eyes.

Categories: Applications & Tools Tags: ,

Slow SSH Client and Quick Hack

June 19th, 2013 4 comments

While using PackStack to install OpenStack for multi-node topology, I found my SSH client was so slow that it failed the PackStack installation command. The ssh I had was the default one with CentOS 6.4: “OpenSSH_5.3p1, OpenSSL 1.0.0-fips 29 Mar 2010.” It seemed to work just fine while using PackStack for all-in-one deployment as described in my previous article.

To isolate the problem, I started to print more debug information from the SSH as follows:

Categories: Cloud Computing Tags: ,