{"id":2699,"date":"2024-06-09T17:00:13","date_gmt":"2024-06-09T21:00:13","guid":{"rendered":"https:\/\/matthannan.net\/blog\/?p=2699"},"modified":"2024-06-09T17:02:48","modified_gmt":"2024-06-09T21:02:48","slug":"high-availability-pi-hole-servers","status":"publish","type":"post","link":"https:\/\/matthannan.net\/blog\/high-availability-pi-hole-servers\/","title":{"rendered":"High Availability Pi-Hole Servers"},"content":{"rendered":"\n
\"\"<\/a><\/figure>\n\n\n\n

Had been running a single Pi-Hole for a long while, but I would always have to wait until after C & J were abed before I could update it.<\/p>\n\n\n\n

Having a second Pi-Hole server running was key. Was trying to get the second one spun up as a Docker instance on the Synology NAS, but trying to keep the two servers in sync was not going to be easy going, as ssh is key to this process.<\/p>\n\n\n\n

Cleaned up the old Pi 4B server, Pi5, a bit and installed Pi-Hole on it as a service.<\/p>\n\n\n\n

I then followed this set of instructions<\/a>. This got the two servers talking, but sync was not taking place the way that I expected. I backed out the Tutorial 1 by removing the added line from \/opt\/pihole\/gravity.sh<\/strong>.<\/code><\/p>\n\n\n\n

I then found this<\/a> set of instructions, which is exactly what I had in mind, as it syncs local DNS records, as well. So this is what is doing the sync, and I am using the heartbeat script from the first instructions, which are found in Tutorial 2.<\/p>\n\n\n\n

WINNING!!!<\/p>\n","protected":false},"excerpt":{"rendered":"

Had been running a single Pi-Hole for a long while, but I would always have to wait until after C & J were abed before I could update it. Having a second Pi-Hole server running was key. Was trying to … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5],"tags":[703],"class_list":["post-2699","post","type-post","status-publish","format-standard","hentry","category-geek","tag-high-availability"],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2NxlE-Hx","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":2254,"url":"https:\/\/matthannan.net\/blog\/installing-the-unifi-controller-on-a-synology-nas-in-5-minutes-2019\/","url_meta":{"origin":2699,"position":0},"title":"Installing the Unifi Controller on a Synology NAS in 5 minutes \u2014 (2019)","author":"matthannan","date":"9 May 2021","format":false,"excerpt":"Slowly I turned. And step by step. Inch by inch... [Step-by-Step] Installing the Unifi Controller on a Synology NAS with the use of Docker. Up and running in 5 minutes. Source: Installing the Unifi Controller on a Synology Nas in 5 minutes \u2014 (2019) Unifi Controller is now running on\u2026","rel":"","context":"In "Geek"","block_context":{"text":"Geek","link":"https:\/\/matthannan.net\/blog\/category\/geek\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/MYP1OBZfFK0\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":1185,"url":"https:\/\/matthannan.net\/blog\/pi-hole-a-black-hole-for-internet-advertisements-curl-ssl-httpsinstall-pi-hole-net-bash\/","url_meta":{"origin":2699,"position":1},"title":"Pi-hole\u00ae: A black hole for Internet advertisements \u2013 curl -sSL https:\/\/install.pi-hole.net | bash","author":"matthannan","date":"16 October 2017","format":false,"excerpt":"Source: Pi-hole\u00ae: A black hole for Internet advertisements \u2013 curl -sSL https:\/\/install.pi-hole.net | bash","rel":"","context":"In "Geek"","block_context":{"text":"Geek","link":"https:\/\/matthannan.net\/blog\/category\/geek\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1195,"url":"https:\/\/matthannan.net\/blog\/what-more-to-do-with-a-raspberry-pi\/","url_meta":{"origin":2699,"position":2},"title":"What More to Do With a Raspberry Pi?","author":"matthannan","date":"14 November 2017","format":false,"excerpt":"I am so loving the Pi. As you may recall, I have Pi-Hole running on it, and also SoftEther VPN server. I noticed my co-worker attached earlier today. A few evenings ago, I was chatting with my wife's younger cousin about installing Linux on an old (PowerPC) Power Mac.[1.\u00a0This is\u2026","rel":"","context":"In "Geek"","block_context":{"text":"Geek","link":"https:\/\/matthannan.net\/blog\/category\/geek\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1656,"url":"https:\/\/matthannan.net\/blog\/pi-hole-stuff\/","url_meta":{"origin":2699,"position":3},"title":"Pi-Hole Stuff","author":"matthannan","date":"29 September 2019","format":false,"excerpt":"I noticed that there were plenty of ads showing on my phone this morning, so I immediately started thinking that either the Pi-Hole Pi had an issue, or Pi-Hole itself was acting up. While reading the news, I saw that Pi-Hole is moving away from ad-block style filtering to straight\u2026","rel":"","context":"In "Geek"","block_context":{"text":"Geek","link":"https:\/\/matthannan.net\/blog\/category\/geek\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1796,"url":"https:\/\/matthannan.net\/blog\/pi-hole-with-unbound\/","url_meta":{"origin":2699,"position":4},"title":"Pi-Hole with Unbound","author":"matthannan","date":"21 April 2020","format":false,"excerpt":"Going right to the top on DNS lookups. I am liking Cloudflare's offerings, but I want to try this solution out for a couple of days at least. https:\/\/docs.pi-hole.net\/guides\/unbound\/","rel":"","context":"In "Geek"","block_context":{"text":"Geek","link":"https:\/\/matthannan.net\/blog\/category\/geek\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1597,"url":"https:\/\/matthannan.net\/blog\/raspberry-pi-sd-card-to-ssd-drive-part-2\/","url_meta":{"origin":2699,"position":5},"title":"Raspberry Pi: SD Card to SSD Drive, part 2","author":"matthannan","date":"11 August 2019","format":false,"excerpt":"Oh, brother, has this been a mess. I've certainly relearned a great deal about Linux partitions and boot sectors and a bunch of other stuff that I used to know cold, but this process has beaten me. 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