Tag: linux
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Here's the situation: You're using Ansible to configure a machine on your network, like a new Raspberry Pi. Ansible has done a bunch of things to the machine and needs to reboot it - for example, when you grow a Raspbian disk image so that it takes up the entire device, it has to be rebooted to notice the change. The question is, how do you reboot the machine, have Ansible pick up where it left off, and do it in one playbook only (instead of two or more)?
I spent the last couple of days searching for specifics and found …
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So, here's the situation:
On Windbringer, I habitually run LXDE as my desktop environment because it's lightweight and does what I need: It manages windows, gives me a menu, and stays out of my way so I can do interesting things. For years I've been using a utility called GKrellm to implement not only system monitoring on my desktop (because I like to know what's going on), but to set and change my desktop background every 24 hours. However, GKrellm has gotten somewhat long in the tooth and I've started using something different for realtime monitoring (but that's not the …
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GSCA - acronym, verb - Using grep, sed, cut, and awk on a Linux or UNIX box to chop up, mangle, or otherwise process data on the command line prior to doing anything serious with it. This is not to preclude the use of additional tools (such as sort).
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UPDATE: 20191229 - Added how to rotate out the oldest backups.
As frequent readers may or may not remember, I rebuilt my primary server last year, and in the process set up a fairly hefty RAID-5 array (24 terabytes) to store data. As one might reasonably expect, backing all of that stuff up is fairly difficult. I'd need to buy enough external hard drives to fit a copy of everything on there, plus extra space to store incremental backups for some length of time. Another problem is that both Leandra and the backup drives would be in the same place at …
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Let's say there's a website that you want to make a local mirror of. This means that you can refer to it offline, and you can make offline backups of it for archival. Let's further state that you have access to some server someplace with enough disk space to hold the copy, and that you can start a task, disconnect, and let it run to completion some time later, with GNU Screen for example. Let's further state that you want the local copy of the site to not be broken when you load it in a browser; all the links …
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A couple of weeks back, somebody I know asked me how I went about deploying SSL certificates from the Let's Encrypt project across all of my stuff. Without going into too much detail about what SSL and TLS are (but here's a good introduction to them), the Let's Encrypt project will issue SSL certificates to anyone who wants one, provided that they can prove somehow that they control what they're cutting a certificate for. You can't use Let's Encrypt to generate a certificate for google.com because they'd try to communicate with the server (there isn't any such thing but …
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Longtime readers have probably seen the odd post about my getting fed up with Firefox and migrating my workflow (and much of my online data archive) to Chromium, which has been significantly faster if nothing else than Firefox lately. Of course, due to Windbringer's screen resolution I immediately ran into problems with just about every font size being too small, including the text in the URL bar, the menus, and the add-ons that I use. On a lark I went back to my font sizes in Keybase article and give it a try. Lo and behold, when I used --force-device-scale-factor …
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Chances are you're running one of two major web browsers on the desktop to read my website - Firefox or Google's Chrome.
Chrome isn't bad; I have to use it at work (it's the only browser we're allowed to have, enforced centrally). In point of fact, I'd have switched to it a long time ago if it wasn't for one thing. I make heavy use of a plugin for Firefox called Scrapbook Plus, which make it possible to take a full snapshot of a web page and store it locally so that it can be read offline, annotated, and full-text searched …
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Some time ago I wrote an article about what Keybase is and what it's good for. I also mentioned one of my pet peeves, which is that, by default the fonts used by the Keybase desktop client are way, way too small to see easily on Windbringer. A couple of days ago somebody finally figured out how to blow up the fonts on the desktop, so I can finally see what's going on without putting my nose on the display (and making the mouse cursor jump around because Windbringer has a touchscreen). While I wish that this would be a …
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