Saturday, March 24, 2018

Pdf Bash Tools - Ghostscript - Watermarks, password protection, search, split, merge and beyond

So much pdf processing that you can do including searching, splitting, merging, pdf password protection and watermarking. Yup, for free. Check and contribute to my pdf bash tools project.

Friday, March 16, 2018

Manage HP ProCurve Switches programmatically from *nix

Just released ProCurve Commander. Repeating yourself is not fun. This is not only true when it comes to management multiple switches but also to auditing them. This same idea can be used to manage Cisco switches and in general any device accessible via SSH but not friendly to remove command invocation.

Thursday, March 15, 2018

Hardening HP ProCurve HP switches

Enable SSH:
telnet 
# config
(config)# crypto key generate ssh
(config)# ip ssh
(config)# show ip ssh
(config)# exit
# exit
> exit
Confirm ssh works and disable telnet:
ssh 
# config
(config)# no telnet
(config)# exit
# exit
> exit
Change default users and set complex passwords:
password operator user-name 
password manager user-name 
Identify the switch:
# config
(config)# hostname "My ProCurve Switch  "

Wednesday, March 14, 2018

Java Applets in MAC OS X

Your only option is Safari, just as your only option is Internet Explorer for Windows. If the applet is insecure it won't run but you can always add exceptions at your own risk. From Apple System Preferences click on Java | Security tab | Edit Site List | Add | Apply | OK | Restart Safari.

Parsing CSV from bash

In one word csvtool.

To install it in Ubuntu:
sudo apt-get install csvtool
To install it in OS X:
brew install opam
opam init
eval `opam config env`
opam install csv
csvtool --help
To extract the second column (index 1) from sample.csv:
cat sample.csv | csvtool col 1 -
Find more from:
csvtool --help

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