Posted by jpluimers on 2017/11/09
Need to do some more research on this to ensure I didn’t goof up:
–jeroen
Posted in *nix, *nix-tools, Communications Development, Development, Internet protocol suite, postfix, Power User, Security, sendmail, SMTP | Leave a Comment »
Posted by jpluimers on 2017/11/09
Interesting as it has steps for both OpenSuSE and Debian each well suited for running on a Raspberry Pi.
[WayBack] MX Backup – Postfix Email Server | samhobbs.co.uk
It seems postfix is a lot easier to configure than sendmail so I already like it.
First I need to read a bit more in Postfix greylisting.
I’ll need to catch up on Sam’s other parts with the postfix tag as well:
- Introduction:
[WayBack] Raspberry Pi Email Server
- How to set up your own email server on a Raspberry Pi: Postfix with Dovecot for IMAP, Squirrelmail for Webmail, Spamassassin & Sieve for spam filtering.
- SMTP incoming/outgoing MTA server:
[WayBack] Raspberry Pi Email Server Part 1: Postfix
- How to set up Postfix on a Raspberry Pi as part of an email server.
- IMAP/POP3 server:
[WayBack] Raspberry Pi Email Server Part 2: Dovecot
- Configure Dovecot for your Raspberry Pi email server to provide IMAP and SASL authentication.
- IMAP/SMTP webmail server:
[WayBack] Raspberry Pi Email Server Part 3: Squirrelmail
- How to set up webmail for your Raspberry Pi email server with Squirrelmail.
- Marking SMTP mail for HAM/SPAM:
[WayBack] Raspberry Pi Email Server Part 4: Spam Detection with Spamassassin
- How to set up a smart spam filter for your Raspberry Pi email server with Spamassassin.
- LMTP processing of mail rules in Dovecot:
[WayBack] Raspberry Pi Email Server Part 5: Spam Sorting with LMTP & Sieve
- Automatically sort messages marked as spam by Spamassassin into the spam folder with Dovecot Sieve (Raspberry Pi email server)
–jeroen
Posted in *nix, *nix-tools, Debian, Development, Hardware Development, Linux, openSuSE, Power User, Raspberry Pi, Raspbian, sendmail, SuSE Linux, Tumbleweed | Leave a Comment »
Posted by jpluimers on 2017/11/07
Learned a few things when modifying https://github.com/gkotian/gautam_linux/blob/master/scripts/colours.sh
Note: `printf` supports emitting `ESC` (ASCII character `\033` aka `27` aka `0x1B`)as `\e` the same way that `echo` does https://linux.die.net/man/1/printf https://linux.die.net/man/1/echo Format strings are at https://linux.die.net/man/3/printf %-10s means left adjusted (aligned) string of length 10
–jeroen
via:
I was investigating how the colour definitions on my OpenSuSE system actually work internally so I added some extra output: ${TYPE} and ${COLOUR}.
Posted in *nix, *nix-tools, bash, bash, Development, Linux, openSuSE, Power User, Scripting, Software Development, SuSE Linux | Leave a Comment »
Posted by jpluimers on 2017/10/24
The first trick works in Windowa and nx (thanks [WayBack] pvandenberk):
curl -s -o /dev/null -I -w "%{http_code}" http://www.example.org/
Inside a Windows batch file you need to escape the % to %% so you get this:
curl -s -o /dev/null -I -w "%%{http_code}" http://www.example.org/
The second is slick but only works on nx (thanks [WayBack] Heath Borders):
#creates a new file descriptor 3 that redirects to 1 (STDOUT)
exec 3>&1
# Run curl in a separate command, capturing output of -w "%{http_code}" into HTTP_STATUS
# and sending the content to this command's STDOUT with -o >(cat >&3)
HTTP_STATUS=$(curl -w "%{http_code}" -o >(cat >&3) 'http://example.com')
[WayBack] Getting curl to output HTTP status code? – Super User
–jeroen
Posted in *nix, *nix-tools, bash, Batch-Files, cURL, Development, Power User, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2017/10/06
In this article we will review sed, the well-known stream editor, and share 15 tips to use it in order to accomplish the goals mentioned earlier, and more.
I like it because 15 Useful ‘sed’ Command Tips and Tricks for Daily Linux System Administration Tasks has a lot of screenshots showing what each expression actually does.
–jeroen
Posted in *nix, *nix-tools, Power User, sed | Leave a Comment »
Posted by jpluimers on 2017/10/05
Wow: nojhan/liquidprompt: A full-featured & carefully designed adaptive prompt for Bash & Zsh
This is really useful!
via:
Sort of tanslated from the first “via” (note that “mit Alles und Scharf” is hard to translate; it’s somewhere between “everything but the kitchen sink, but done right” and “right on the money”):
Bash Prompt Overkill: https://github.com/nojhan/liquidprompt is a Bash “Prompt doing it all right”-extension, which doesn’t care how much any feature costs as we have cores, gigabytes and SSD.
Liquid Prompt automagically recognises context and enables a plethora of features in the prompt when needed based on that context.
It’s like pixie dust for your prompt.
You can configure everything, but you don’t have to: the out of the box experience is already like pixie dust for your prompt.
It works on OS X too and is part of homebrew:
$ brew install liquidprompt ==> Using the sandbox ==> Downloading https://github.com/nojhan/liquidprompt/archive/v_1.11.tar.gz ==> Downloading from https://codeload.github.com/nojhan/liquidprompt/tar.gz/v_1.11 ######################################################################## 100.0% ==> Caveats Add the following lines to your bash or zsh config (e.g. ~/.bash_profile): if [ -f /usr/local/share/liquidprompt ]; then . /usr/local/share/liquidprompt fi If you'd like to reconfigure options, you may do so in ~/.liquidpromptrc. A sample file you may copy and modify has been installed to /usr/local/share/liquidpromptrc-dist Don't modify the PROMPT_COMMAND variable elsewhere in your shell config; that will break things. ==> Summary 🍺 /usr/local/Cellar/liquidprompt/1.11: 7 files, 125.6K, built in 3 seconds [jeroenp:~/Versioned] 10s $
–jeroen
Posted in *nix, *nix-tools, Apple, bash, bash, Development, Mac OS X / OS X / MacOS, Power User, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2017/09/22
Via “In the form over function era: Using Network Manager from the command line” [WayBack]:
As a Linux administrator you’ve got various tools to use in order to configure network connections, such as: nmtui, NetworkManager GUI and nmcli in Linux
Source: How to Configure and Manage Network Connections Using ‘nmcli’ Tool [WayBack]
–jeroen
Posted in *nix, *nix-tools, Linux, Power User | Leave a Comment »
Posted by jpluimers on 2017/09/14
Just in case someone has a better alternative than youtube-dl alias:
alias youtube-dl-audio-and-video='youtube-dl --keep-video --extract-audio --audio-quality 0 --audio-format mp3'
It extracts the audio and keeps the video.
The result is that also all intermediate downloads are being kept.
So even after studying the README extensively the only alternative seems to be a double download like this:
youtube-dl-audio-and-video() { youtube-dl --extract-audio --audio-quality 0 --audio-format mp3 $1; youtube-dl $1; }
–jeroen
Posted in *nix, *nix-tools, bash, bash, Development, Power User, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2017/09/07
Interesting reads:
Need to research how I can fit noatime ino.
–jeroen
Posted in *nix, *nix-tools, btrfs, File-Systems, Power User | Leave a Comment »
Posted by jpluimers on 2017/08/28
This is so cool, but will take some time for lot’s of tooling to become compatible:
Starting with v197 systemd/udev will automatically assign predictable, stable network interface names for all local Ethernet, WLAN and WWAN interfaces. This is a departure from the traditional interface naming scheme (“eth0”, “eth1”, “wlan0”, …), but should fix real problems.
–jeroen
Posted in *nix, *nix-tools, Linux, Power User, systemd | Leave a Comment »
The Wiert Corner - irregular stream of stuff 