diff --git a/blog/blog-issue.wiki b/blog/blog-issue.wiki new file mode 100644 index 0000000..3bcd177 --- /dev/null +++ b/blog/blog-issue.wiki @@ -0,0 +1,31 @@ +%title Blog Issue + + +--------------------------- +[[index.wiki|Index]] [[/home/tristan/Blog/blog/hello-world.wiki|Hello World]] +--------------------------- + +*Date:* 2023/09/05 + +*Author:* Tristan Ancelet + += Blog Issue = +== DNS == +Looks like my master DNS server was down for the last 3 days (didn't know until the teacher mentioned it). Had to end up taking a look at my provider and it looks like my master DNS server had crashed at some point. After restarting it I got everything started up and it seems to have come back up. + +I had a backup DNS server as well, but after looking into the VM (that was still running), it turns out that I never whitelisted the DNS port (53/udp) on it. So it's entire life has been failure (as it's been the backup for several months). My thought is that I *DID* whitelist it but not perminately. So after a reboot it cleared the config and DNS traffic wasn't whitelisted it anymore. + +Here is the commands it did to whitelist DNS (running firewalld as a device side firewall) +```bash +# Adding the DNS service to the public zone and reloading firewalld to make sure the config change takes +firewall-cmd --perm --zone=public --add-service=dns +firewall-cmd --reload +``` + +After checking that DNS was resolving with dig, I was able to visit my site with no more issues. + +```bash +dig blog.tristanancelet.com +``` + + diff --git a/blog/index.wiki b/blog/index.wiki index 85b4c1d..071054e 100644 --- a/blog/index.wiki +++ b/blog/index.wiki @@ -1,10 +1,12 @@ %title Blog Index ----- +-------- [[about-me.wiki|About Me]] ----- +-------- -= Blog Posts = --------------- +## Blog Posts +------------- + +[[blog-issue.wiki|Blog Issue (2023/09/05)]] [[hello-world.wiki|Hello World (2023/09/02)]]