https://www.supertechcrew.com/ Recent content in SuperTechCrew on Super Tech Crew Hugo -- gohugo.io Mon, 28 Jun 2021 21:19:07 +0000 https://www.supertechcrew.com/automatically-lock-gpg-ssh-agent-screen-lock/ Mon, 28 Jun 2021 21:19:07 +0000 https://www.supertechcrew.com/automatically-lock-gpg-ssh-agent-screen-lock/ When we aren’t using GPG/SSH, it’s best to lock it. We can set this to happen after a set time, and/or when the screensaver activates. This helps to keep our credentials secure. https://www.supertechcrew.com/use-ssh-agent-remember-ssh-passphrase/ Mon, 15 Jun 2020 18:56:18 -0600 https://www.supertechcrew.com/use-ssh-agent-remember-ssh-passphrase/ Use SSH agent to temporarily remember your SSH key’s passphrase. https://www.supertechcrew.com/how-not-to-enter-a-code-or-password-each-time-you-login-via-ssh/ Thu, 06 Jun 2019 22:32:24 +0000 https://www.supertechcrew.com/how-not-to-enter-a-code-or-password-each-time-you-login-via-ssh/ Tired of Multifactor Authentication codes for SSH, even though you just logged in? Here’s how SSH can reuse an existing connection, so you can quickly run single commands, open multiple SSH logins, and still have the same level of security. https://www.supertechcrew.com/how-to-find-out-about-my-system-and-its-hardware/ Tue, 14 May 2019 19:08:31 -0600 https://www.supertechcrew.com/how-to-find-out-about-my-system-and-its-hardware/ Simple commands to show details about your system, from PCI to Video to CPU. https://www.supertechcrew.com/wetty-browser-ssh-terminal/ Tue, 07 May 2019 22:32:24 +0000 https://www.supertechcrew.com/wetty-browser-ssh-terminal/ WeTTy is a fast, full fledged terminal emulator, the works just as fast as a normal terminal and handles just as well. I’ll show you how to set it up on Docker using Traefik and Docker Compose. https://www.supertechcrew.com/multifactor-two-authentication-mfa-ssh-shell-login/ Mon, 06 May 2019 22:32:24 +0000 https://www.supertechcrew.com/multifactor-two-authentication-mfa-ssh-shell-login/ How to setup MFA/2FA/Two Factor Authentication to enhance the security of your SSH logins. https://www.supertechcrew.com/matomo-website-analytics-docker-compose/ Mon, 29 Apr 2019 21:32:24 +0000 https://www.supertechcrew.com/matomo-website-analytics-docker-compose/ Matomo is an analytics tool focused on privacy while feature rich. We will set it up using Docker Compose. https://www.supertechcrew.com/setting-up-awstats-with-nginx-and-uwsgi/ Wed, 03 Apr 2019 19:35:53 -0600 https://www.supertechcrew.com/setting-up-awstats-with-nginx-and-uwsgi/ Visualize the traffic and usage of your site. https://www.supertechcrew.com/traefik-cloud-native-router-docker-compose/ Wed, 13 Mar 2019 21:32:24 +0000 https://www.supertechcrew.com/traefik-cloud-native-router-docker-compose/ Traefik is an awesome simple little router made for the cloud. Just tell it where to send the traffic, without a restart! Here we will use it in Docker Compose to route our traffic. https://www.supertechcrew.com/anonymizing-logs-nginx-apache/ Mon, 12 Mar 2018 21:30:42 +0000 https://www.supertechcrew.com/anonymizing-logs-nginx-apache/ How to anonymize logs in NGINX and Apache https://www.supertechcrew.com/improving-speed-digikam-using-mysql/ Tue, 16 Jan 2018 23:03:39 +0000 https://www.supertechcrew.com/improving-speed-digikam-using-mysql/ Digikam is great for organizing pictures, yet above 20,000 pictures it can begin to slow down. You can speed it back up with MySQL, and set some options to make it even faster. https://www.supertechcrew.com/meltdown-spectre-vulnerabilities/ Thu, 04 Jan 2018 17:09:45 -0600 https://www.supertechcrew.com/meltdown-spectre-vulnerabilities/ Most every cpu made since 1995 is vulnerable to a set of vulnerabilities that could compromise secret data on computers, servers, and containers. https://www.supertechcrew.com/listing-users-cve-2016-6210-vulnerability/ Fri, 28 Jul 2017 19:22:59 -0600 https://www.supertechcrew.com/listing-users-cve-2016-6210-vulnerability/ OpenSSH 7.2p2 and before had a vulnerability where it would use Blowfish for users that don’t exist, and SHA256/SHA512 for real users. Here’s how to test for it. (Note that i) https://www.supertechcrew.com/clear-cloudflare-cache-when-pushing-from-git-github-pages/ Thu, 06 Jul 2017 21:35:29 +0000 https://www.supertechcrew.com/clear-cloudflare-cache-when-pushing-from-git-github-pages/ Do you use Cloudflare with Github Pages? Are you using Jekyll, Hugo, or another static generator, and want to clear those cached pages without logging into Cloudflare. Here’s how! https://www.supertechcrew.com/awesome-dmarc-reports-viewer/ Wed, 05 Jul 2017 17:02:59 -0600 https://www.supertechcrew.com/awesome-dmarc-reports-viewer/ Wanting to take DMARC, DKIM, and SPF to the next level? Have you setup a method to collect reports and view them? If not, this article shows a way how to do it. https://www.supertechcrew.com/auto-renew-letsencrypt-certificates-certbot/ Mon, 12 Jun 2017 20:22:59 -0600 https://www.supertechcrew.com/auto-renew-letsencrypt-certificates-certbot/ Here is a simple way to auto renew all your certificates with Certbot, get email notifications about it, and safely restart NGINX, Apache, and any other service you need to restart to get the certificates. https://www.supertechcrew.com/extra-characters-paste-ssh-bracketed-paste/ Fri, 12 May 2017 17:22:59 -0600 https://www.supertechcrew.com/extra-characters-paste-ssh-bracketed-paste/ Do you have extra characters like 0~ and 1~ showing up when you paste into ssh terminal? Here’s a simple way to fix that. https://www.supertechcrew.com/mysql-drop-all-tables/ Wed, 10 May 2017 17:22:59 -0600 https://www.supertechcrew.com/mysql-drop-all-tables/ An easy way to clear out a Mysql database of all of its tables. https://www.supertechcrew.com/build-mysql-mariadb-galera-cluster/ Wed, 01 Mar 2017 10:22:59 -0600 https://www.supertechcrew.com/build-mysql-mariadb-galera-cluster/ Want a high availability MySQL Cluster were you can access all the database nodes at the same time? As in Primary-Primary-Primary-etc setups? Then this is the one for you. https://www.supertechcrew.com/thunderbird-oauth2-gmail/ Thu, 26 Jan 2017 02:22:59 -0600 https://www.supertechcrew.com/thunderbird-oauth2-gmail/ To use Thunderbird with your Gmail account, Google tells you to allow “Insecure apps”. However, Thunderbird supports Oauth2 with Gmail. Here’s how to set it up. https://www.supertechcrew.com/using-strace-see-what-program-is-doing/ Sat, 03 Dec 2016 21:54:56 +0000 https://www.supertechcrew.com/using-strace-see-what-program-is-doing/ strace is a great little program that you can use to see what files a program is using, and error it may be running into as well. https://www.supertechcrew.com/change-file-date-time/ Thu, 17 Nov 2016 21:38:51 +0000 https://www.supertechcrew.com/change-file-date-time/ Here we show ways to change a file’s time and date, even to impossible dates https://www.supertechcrew.com/show-awesome-system-stats-after-login-info-shell/ Tue, 18 Oct 2016 08:00:34 -0600 https://www.supertechcrew.com/show-awesome-system-stats-after-login-info-shell/ Here’s a great way to show system stats after you login, such as last login, uptime, load, memory, disk usage, and the weather, and if there’s an issue. https://www.supertechcrew.com/systemd-cron-making-cronjobs-with-systemd-without-timer-service-files/ Sat, 08 Oct 2016 12:47:21 +0000 https://www.supertechcrew.com/systemd-cron-making-cronjobs-with-systemd-without-timer-service-files/ Ever need to make cronjobs under systemd? Here’s how to do so easily, with and without timer and service files. https://www.supertechcrew.com/jekyll-troubleshooting/ Wed, 05 Oct 2016 17:22:59 -0600 https://www.supertechcrew.com/jekyll-troubleshooting/ When things go wrong with Jekyll, here are some ways to fix them https://www.supertechcrew.com/customizing-aur-arch-package-with-customizepkg/ Tue, 02 Aug 2016 20:16:34 -0600 https://www.supertechcrew.com/customizing-aur-arch-package-with-customizepkg/ Want to customize packages in the AUR Repo, but don’t want to keep a separate PKGBUILD or add your own package to AUR? Here’s how. https://www.supertechcrew.com/jekyll-check-for-broken-links/ Sun, 17 Jul 2016 18:22:59 -0600 https://www.supertechcrew.com/jekyll-check-for-broken-links/ Broken links kill SEO. And they can be a pain to find. But here’s a simple way to check for broken links in Jekyll, in two commands! https://www.supertechcrew.com/how-to-buy-sell-domains/ Sat, 16 Jul 2016 22:46:12 +0000 https://www.supertechcrew.com/how-to-buy-sell-domains/ Some notes on how to sell and buy domains. https://www.supertechcrew.com/how-to-come-up-website-username/ Sat, 16 Jul 2016 20:46:12 +0000 https://www.supertechcrew.com/how-to-come-up-website-username/ Some ways to come up with domain and user names. https://www.supertechcrew.com/instant-search-box-jekyll/ Fri, 15 Jul 2016 18:23:59 -0600 https://www.supertechcrew.com/instant-search-box-jekyll/ A simple way to add a search box on your site that as soon as you type you have your results! https://www.supertechcrew.com/redirect-jekyll-broken-page-move/ Fri, 24 Jun 2016 20:16:34 -0600 https://www.supertechcrew.com/redirect-jekyll-broken-page-move/ Times change and sometimes we have to move a page. How do we make it so people can still find it off of bookmarks or links from other sites? https://www.supertechcrew.com/setup-jekyll-sitemap/ Fri, 24 Jun 2016 20:16:34 -0600 https://www.supertechcrew.com/setup-jekyll-sitemap/ Jekyll is awesome! Fast, lean, and mean. But what about sitemaps? https://www.supertechcrew.com/create-self-extracting-running-archive/ Tue, 17 May 2016 20:21:59 -0600 https://www.supertechcrew.com/create-self-extracting-running-archive/ Make your own script that can run itself without any special setup. Your own installer.sh https://www.supertechcrew.com/create-your-own-wifi-repeater/ Tue, 17 May 2016 13:21:59 -0600 https://www.supertechcrew.com/create-your-own-wifi-repeater/ It is easy to build your own WiFi repeater with a RaspberryPi, plus you can make this repeater do a lot more that one off the store shelf https://www.supertechcrew.com/digitalocean-manage-vps-curl/ Wed, 30 Mar 2016 19:12:59 -0600 https://www.supertechcrew.com/digitalocean-manage-vps-curl/ How to manage your DigitalOcean VPS droplets from the command line using cURL https://www.supertechcrew.com/wireshark-capture-regular-user/ Tue, 29 Mar 2016 17:22:59 -0600 https://www.supertechcrew.com/wireshark-capture-regular-user/ Instead of having to run it as root, do this trick to run it as a normal user. https://www.supertechcrew.com/unbound-setup/ Mon, 28 Mar 2016 19:22:59 -0600 https://www.supertechcrew.com/unbound-setup/ Want to setup Unbound on a VPN? Here’s a way to do it. https://www.supertechcrew.com/setup-openvpn-on-android/ Mon, 28 Mar 2016 17:22:59 -0600 https://www.supertechcrew.com/setup-openvpn-on-android/ Here’s how to setup OpenVPN on your android phone! https://www.supertechcrew.com/setup-openvpn-easyrsa3/ Mon, 28 Mar 2016 16:22:59 -0600 https://www.supertechcrew.com/setup-openvpn-easyrsa3/ I wanted to setup OpenVPN with a VPS server so my laptop could have a secure connection when I’m traveling or at the library. Here’s how I did it. https://www.supertechcrew.com/dnsmasq-caching-dnssec/ Fri, 18 Mar 2016 20:16:34 -0600 https://www.supertechcrew.com/dnsmasq-caching-dnssec/ DNS lookups can slow down any system they aren’t quick enough. Here’s a way to speed things up. https://www.supertechcrew.com/disable-redshift-during-screenshots/ Thu, 14 Jan 2016 10:22:59 -0600 https://www.supertechcrew.com/disable-redshift-during-screenshots/ Redshift is a great program to lower the strain on one’s eyes. However, we don’t like red screenshots. Here’s how to make screenshots have normal colors https://www.supertechcrew.com/magic-sysrq-reboot-locked-linux-machine/ Wed, 02 Dec 2015 17:22:59 -0600 https://www.supertechcrew.com/magic-sysrq-reboot-locked-linux-machine/ Sometimes your linux machine locks up, and you need to reboot it. Here’s a safe way to do so using the Magic SysRq https://www.supertechcrew.com/kernel-panics-and-lockups/ Thu, 26 Nov 2015 17:22:59 -0600 https://www.supertechcrew.com/kernel-panics-and-lockups/ Kernel panics and lockups happen for various reasons, from bad hardware to kernel bugs to over heating, to cosmic rays. Here’s how to keep your machine running. https://www.supertechcrew.com/watchdog-keeping-system-always-running/ Thu, 26 Nov 2015 22:32:24 +0000 https://www.supertechcrew.com/watchdog-keeping-system-always-running/ Watchdog monitors the health of a machine. If something goes really wrong, it can safely reboot the machine, allowing your service to keep on going rather than wait for someone to come kick it. https://www.supertechcrew.com/chkrootkit-exclude-files-false-positive/ Sat, 17 Oct 2015 19:45:32 +0000 https://www.supertechcrew.com/chkrootkit-exclude-files-false-positive/ Here’s how to exclude items from chkrootkit’s output, be it due to changing PIDs or network interfaces that change. https://www.supertechcrew.com/chkrootkit-check-rootkit/ Thu, 17 Sep 2015 19:45:32 +0000 https://www.supertechcrew.com/chkrootkit-check-rootkit/ Simple way to check for rootkits using chkrootkit https://www.supertechcrew.com/rkhunter-check-rootkit/ Wed, 16 Sep 2015 19:45:32 +0000 https://www.supertechcrew.com/rkhunter-check-rootkit/ Simple way to check for rootkits https://www.supertechcrew.com/wordpress-block-reinstall-security/ Thu, 16 Jul 2015 18:22:20 +0000 https://www.supertechcrew.com/wordpress-block-reinstall-security/ If your WordPress’s database gets dropped or corrupted, an anonymous user can reinstall your WordPress however they want to. Here’s how to stop that from ever happening. https://www.supertechcrew.com/htaccess-rules-security-cache-redirect/ Tue, 14 Jul 2015 21:32:24 +0000 https://www.supertechcrew.com/htaccess-rules-security-cache-redirect/ Here’s some .htaccess rules you can add to your site https://www.supertechcrew.com/custom-error-pages-codes-apache-nginx/ Tue, 14 Jul 2015 21:32:24 +0000 https://www.supertechcrew.com/custom-error-pages-codes-apache-nginx/ How to make custom error pages. https://www.supertechcrew.com/wordpress-snippets/ Tue, 14 Jul 2015 21:32:24 +0000 https://www.supertechcrew.com/wordpress-snippets/ Various snippets to add to your Wordpress site to improve it. https://www.supertechcrew.com/emojis-slowing-down-wordpress/ Tue, 07 Jul 2015 17:34:44 +0000 https://www.supertechcrew.com/emojis-slowing-down-wordpress/ It happened. Again. For some reason the WordPress 4.2 version included a lovely little script called ‘wp-emoji-release.min.js’ that loads at the end of the page. https://www.supertechcrew.com/zombie-slayer-kill-stuck-locked-processes/ Mon, 27 Apr 2015 20:57:55 +0000 https://www.supertechcrew.com/zombie-slayer-kill-stuck-locked-processes/ When an infamous zombie process strikes, here’s how to kill it without having to reboot the machine. https://www.supertechcrew.com/dokuwiki-deny-access-login-page-cookie/ Thu, 02 Apr 2015 19:22:59 -0600 https://www.supertechcrew.com/dokuwiki-deny-access-login-page-cookie/ Do you ever have bots or hackers try to log into your dokuwiki login page? Here’s a way to block them with a simple cookie. https://www.supertechcrew.com/wptool/ Sun, 15 Feb 2015 20:16:34 -0600 https://www.supertechcrew.com/wptool/ A cli tool for managing WordPress https://www.supertechcrew.com/privacy/ Wed, 11 Feb 2015 18:16:34 -0600 https://www.supertechcrew.com/privacy/ Here is the privacy policy for the site. https://www.supertechcrew.com/about/ Wed, 11 Feb 2015 18:16:34 -0600 https://www.supertechcrew.com/about/ This little site https://www.supertechcrew.com/projects/ Wed, 11 Feb 2015 18:16:34 -0600 https://www.supertechcrew.com/projects/ A list of some projects I either have or am working on. https://www.supertechcrew.com/terms/ Wed, 11 Feb 2015 18:16:34 -0600 https://www.supertechcrew.com/terms/ The boring terms of the website. https://www.supertechcrew.com/force-checking-file-system/ Fri, 09 Jan 2015 20:36:16 +0000 https://www.supertechcrew.com/force-checking-file-system/ When the system starts throwing errors about the filesystem, you want to force check it on the next boot. Here’s how to do it in Systemd and SysVinit. https://www.supertechcrew.com/better-dokuwiki-seo/ Tue, 27 May 2014 20:46:12 +0000 https://www.supertechcrew.com/better-dokuwiki-seo/ While fixing my Dokuwiki site, I found a way to make the paths more SEO friendly, especially with searches. https://www.supertechcrew.com/increasing-speed-wordpress-sites/ Sat, 17 May 2014 18:57:55 +0000 https://www.supertechcrew.com/increasing-speed-wordpress-sites/ I increased the speed of some of my sites, one of which from a crazy 8 seconds down to about 1 second. Here’s how I did it. https://www.supertechcrew.com/libreoffice-version-control/ Sun, 11 May 2014 20:12:02 +0000 https://www.supertechcrew.com/libreoffice-version-control/ Lately I’ve been looking at different ways to do version control with office documents. I’ve been interested in this because I write stories and it’s nice to be able to see my work as I go along. https://www.supertechcrew.com/software-integrity-matters/ Thu, 08 May 2014 20:34:32 +0000 https://www.supertechcrew.com/software-integrity-matters/ Software is a great thing, giving us the able to do some wonderful things. But what about Trust and Integrity? https://www.supertechcrew.com/update-heartbleed-security-vulnerability/ Mon, 05 May 2014 20:34:23 +0000 https://www.supertechcrew.com/update-heartbleed-security-vulnerability/ Well, it’s been about a month since the Heartbleed Security Vulnerability was found. What happened? https://www.supertechcrew.com/improve-wordpress-plugin-security-blocking-unneeded-access-plugin-php-files/ Mon, 14 Apr 2014 20:23:40 +0000 https://www.supertechcrew.com/improve-wordpress-plugin-security-blocking-unneeded-access-plugin-php-files/ Many Wordpress Plugins allow direct access to themselves, which can lead to exploits. Here’s how to easily block that access and keep them secure. https://www.supertechcrew.com/heartbleed-ssl-security-exploit/ Wed, 09 Apr 2014 20:46:34 +0000 https://www.supertechcrew.com/heartbleed-ssl-security-exploit/ The recently discovered Heartbleed security exploit has far reaching effects in the OpenSSL software. https://www.supertechcrew.com/show-notice-warning-message-before-all-login-prompts/ Fri, 31 Oct 2008 07:00:34 -0600 https://www.supertechcrew.com/show-notice-warning-message-before-all-login-prompts/ It’s good practice to put up a notice before your server’s login prompts. Here’s a simple way to do it, with example texts too. https://www.supertechcrew.com/linux-create-encrypted-swap/ Fri, 26 Sep 2008 20:26:04 -0600 https://www.supertechcrew.com/linux-create-encrypted-swap/ Did you know that your swap can contain sensitive information? Here’s some ways to encrypt it to keep it from falling into the wrong hands. https://www.supertechcrew.com/selinux-security-enhanced-linux/ Fri, 02 May 2008 03:36:19 -0600 https://www.supertechcrew.com/selinux-security-enhanced-linux/ What is SELinux and some basics on how to use it. https://www.supertechcrew.com/tweak-linux-console/ Wed, 16 Apr 2008 15:04:45 -0600 https://www.supertechcrew.com/tweak-linux-console/ We can tweak a lot of things about the linux console. Here are some ways to do it with setterm and disable the annoying PC Speaker. https://www.supertechcrew.com/bash-profile/ Wed, 16 Apr 2008 10:45:32 +0000 https://www.supertechcrew.com/bash-profile/ Setting up your bash profile. https://www.supertechcrew.com/compile-linux-kernel/ Wed, 16 Apr 2008 03:52:45 -0600 https://www.supertechcrew.com/compile-linux-kernel/ A simple way to compile the Linux Kernel https://www.supertechcrew.com/bash-get-arguments-with-getopts/ Wed, 16 May 2007 10:45:32 +0000 https://www.supertechcrew.com/bash-get-arguments-with-getopts/ Tips on bash scripting, from random strings, to reading default values. https://www.supertechcrew.com/random-numbers-strings-bash-shell-scripting/ Wed, 16 May 2007 10:45:32 +0000 https://www.supertechcrew.com/random-numbers-strings-bash-shell-scripting/ How to generate random numbers and strings in Bash shell and scripts. https://www.supertechcrew.com/bash-shell-read-variables-default-values/ Wed, 16 May 2007 10:45:32 +0000 https://www.supertechcrew.com/bash-shell-read-variables-default-values/ When using read to get a value from the user, it’s really nice to have a default that they can just hit enter to. https://www.supertechcrew.com/cat-bash-show-contents-file/ Wed, 16 May 2007 10:45:32 +0000 https://www.supertechcrew.com/cat-bash-show-contents-file/ Here’s an easy way to use cat in bash to show a file’s contents https://www.supertechcrew.com/links/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.supertechcrew.com/links/ Links to various sites.