Jul 8 2014

Check domain NS glue records with ‘dig’

A glue record is the IP address of a NameServer held at the Domain Name registry.
Glue records are required when it is needed to point name servers of a domain-name to a host-name under the domain name itself.

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Dec 22 2013

Shell In A Box: command line tools to a web based terminal emulator.

ShellInABox
Shell In A Box implements a web server that can export arbitrary command line tools to a web based terminal emulator.

This emulator is accessible to any JavaScript and CSS enabled web browser and does not require any additional browser plugins.

With default configuration, it is possible to start a Web Server at http://localhost:4200/ that allows users to login with their username and password and to get access to their login shell.

All client-server communications are encrypted, if SSL/TLS certificates have been installed.

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Mar 5 2012

Juniper SRX: Copy a file from one node to another one in a JSRP Chassis Cluster.

When Chassis Cluster is enabled, it is possible to transfer a file from one node to the other.

An example scenario would be if it’s required to move a JunOS image from one node to the other to upgrade both nodes.
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Nov 4 2011

Linux: Clear Bash Shell history

Clear content for current and, in some cases, global command shell history can be important for System Administrators.

This procedures are (for example) very useful when some cleat-text password has been passed via command-line and the System Administrator needs to clear them from history.
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