Brad's Place – Blog – Some thoughts

July 18, 2019 Perl

Exception-al perl signals

Scenario For a certain code-base it’s decided it would be useful to be able to trigger an exception on-demand (mid-way through a process working). Why?...

May 13, 2019 Security

openssl s_client – SNI testing with -servername

When testing network connections to a server using the TLS SNI extension to allow a single IP address to respond with different certificates the openssl...

April 12, 2019 SysAdmin

XTermVT100selectToClipboard: true

The Problem Working with copying text between applications which use the X11 PRIMARY (eg. the quick-copy of selected text and pasting by clicking the middle...

September 10, 2018September 10, 2018 Python Software Development

pip – Cannot fetch index base URL http://pypi.python.org/simple/

You want to use pip to install a module from PyPI. However your server distribution in a little old (at the time of writing this...

September 5, 2018September 5, 2018 SysAdmin

bandwidth measurement using iperf

I wrote about using netcat to measure bandwidth between servers which works perfectly well in a minimal sort of way (and in particular between servers...

May 28, 2018May 28, 2018 PHP Software Development

On the importance of reading the docs – PHP’s date_parse errors

It’s important to read the documentation, and then read it again once or twice. PHP’s date_parse function parses a datetime string and returns an “array with information...

May 24, 2018May 24, 2018 Perl Software Development

perl =~ operator interprets a RHS expression at run-time

This article starts with a conversation about adjusting compiled perl regular expressions and a sudden realisation – which went a little along the lines of:...