Here at ProgClub, as moderator for our mailing lists, I get a bunch of spam that I have to get rid of every day, to keep our lists sparkling and spam-free. I regularly get spam from senders from ofenews.co.uk, and I wanted to add their entire domain to a blacklist on our mail server… I hadn’t configured a Postfix blacklist before, so I did a little research and came up with this:
I created a file /etc/postfix/sender_access like this:
Then I created the access database:
# postmap /etc/postfix/sender_access
Then I added the sender restrictions into /etc/postfix/main.cf:
Then I restarted postfix and was done! Everything is easy when you know how.
For reference, here is the doco which I read to help me:
If your table isn’t automatically adjusting to the width specified by your CSS, make sure you haven’t set display: inline-block; on the <table> element.
So over here I learned about manuale which looks like the tool I’ve been waiting for! There is also acme.sh which I haven’t checked out yet…
You can press Ctrl+N to open a new window, but the new window loads with your home page. What I’ve found myself wanting to do is to open a copy of the current page in a new window. The way I figured was to click History in the menu bar and then Shift+Click to load the page on the top of the list (assuming the page you want is actually on the top of the list… if that’s not what you want keep looking down the list!).
By default Firefox complains about access to non-standard ports and blocks access. You can override this behaviour by following these instructions. Basically add the comma separated list of allowed ports to the network.security.ports.banned.override string via about:config.
RequestHeader unset Authorization
Over here. Wanted to keep a note of those settings.
Today I learned about extensions.greasemonkey.fileIsGreaseable… a way to get Greasemonkey to process file-system documents… for scripts to work with file:// paths, you need to open about:config and set extensions.greasemonkey.fileIsGreaseable to true.
Reading about network sockets…