Featured internet technology

Facebook’s ‘Page Transparency’ & How to know when to spot fake pages!

Back in April of this year, to combat ‘Fake News’, Facebook introduced a new feature on all pages called “Page Transparency”.
It allows everyone who vists the page the ability to see various metadata.

Facebook’s “Page Transparency” box on Padraig Fahy Support
Featured technology video

Backup & Update WordPress to 5.0

The following is a video guide on how you can back up your WordPress site with Blacknight and update it to 5.0

Apologies if I am stumbling over my words a little bit in this video.

If you have any further queries about this, please leave a comment on this post or tweet me @PadraigFahy

Featured internet technology

Protect & secure your Instagram account!

Over the last few days, I have come across friends’ Instagram accounts being compromised.

I would know that they are compromised when there is multiple advertisements being added for the same brands/items eg. Ray Ban’s, Adidas etc.

Here is a couple of tips on how to protect your Instagram account.

  1. Have a strong password. Do not use the same password that you would use for another site/app. Consider using a Password Manager like LastPass, 1Password or KeePassX to generate and store your passwords.
  2. Use 2-factor Authentication. This is the one thing that will definatly protect your account. It can be found under Settings >> Two-Factor Authentication. It will send you a code every time that you log into Instagram from a new device.

With those couple of simple steps, you should be able to keep your account(s) secured.

domains Featured life misc technology

Attending WordCamp Dublin 2017!

Hey everyone!

Just a quick note to let you all know that I will be in Dublin next weekend (October 14th & 15th) for WordCamp Dublin 2017!
It is the first WordCamp conference to be held in Dublin.

If you are in the area on Friday evening or attending on Saturday, find me (I should be wearing my Blacknight hoodie πŸ˜‰ ) and we can have a chat (and a coffee if yer into that type of thing haha)

I don’t know what to expect from this, but I know that it is going to be fun!

Updates will be provided on my Twitter at πŸ™‚

technology Uncategorized

Sendmail, please don’t break Postfix

As I look after most of the services that run on my server (Titan), I experiement around with new scripts, plugins and other bits and pieces.

But there can be times where it does more damage than good.

I wanted to install a CMS (Which I will not name), but it decided that it wanted to install SendMail, which is fine because it was part of this package.
What I didn’t realise that when it installs SendMail, it uninstalls Postfix.

I use postfix for all my entire email set up (Managing email addresses & logins).

So, me being me, I uninstalled sendmail sudo apt remove sendmail – All good! Sendmail is not on my system…but now I can’t establish an SMTP connection on my MS Outlook.

What gives?

I attempted to do sudo service postfix start and that wall showed up OK.
sudo service postfix status showed that it was started but I still couldn’t make an SMTP connection.

I ran netstat -tulpn to find out what ports were open. Sometimes you can find out what process is using that port, but in this instance, it showed.

Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0   *               LISTEN      -

Hmm, that looks ok…

So after a bit of digging around and trying to adjust postfix configs, I decided to stop postfix sudo service postfix stop and re-ran netstat -tulpn


Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0   *               LISTEN      -

O_O…What…But I STOPPED Postfix
How can it still be listening on 587 if there is no service???!?!?!

With a bit of headscratching, I ran netstat -tulpn | grep :587 and it returned:

Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0   *               LISTEN      15463/sendmail

But…I uninstalled sendmail … How? Anyway, I couldn’t sudo service stop sendmail cause it was already gone, so I did the old kill -9 <pid> trick and that indeed killed it! Ran sudo service postfix start and we are back in action.

A valuable lesson learned today!

TL;DR – Sendmail doesn’t stop the service even if you uninstall, so you have to kill the process BEFORE uninstalling it.