Single sign-on (SSO) is conceptually pretty simple. User hits domain1.com. domain1.com sees there’s no session cookie. domain1.com redirects to sso.com sso.com presents login page, and take credentials sso.com sets session cookie for the user sso.com then redirects back to domain1 to a special url (like domain1.com/ssologin) the ssologin URL contains a parameter that is basically … Read more
I was able to figure out the issue. On Ubuntu, Docker sets the DNS servers for container to Google’s servers at 8.8.8.x. As I understand it, this is a workaround on Ubuntu due to the fact that Ubuntu sets /etc/resolv.conf to be 127.0.0.1. Those Google servers weren’t accessible from behind our firewall, which is why … Read more
I was running into the exact same problem that Saurav described, but I really needed to find a solution that did not require anything other than Route 53 and S3. I created a how-to guide for my blog detailing what I did. Here is what I came up with. Objective Using only the tools available … Read more
You have successfully transfered the domain to Gandi, but your domain is still configured with GD nameservers. Check this: Log in to your AWS web console Select Route53 service Select Hosted Zones in the left pane Select verticeinteractive.co.uk (but do not click on the domain name, just select the radio button) Notice the 4 name … Read more
1/23/19 UPDATE: Things have changed quite a bit (for the better) since my last answer. This updated answer will show you how to configure: Root apex (example.com) Sub-domain (www.example.com) HTTPS (optional but strongly encouraged) In the end, all requests to example.com will be re-directed to https://www.example.com (or http:// if you choose NOT to use HTTPS). … Read more
Well, the most likely difference is that you still have to do an actual lookup of localhost somewhere. If you use 127.0.0.1, then (intelligent) software will just turn that directly into an IP address and use it. Some implementations of gethostbyname will detect the dotted format (and presumably the equivalent IPv6 format) and not do … Read more
Anyone have any great ideas besides storing a list of all TLDs? No, because each TLD differs on what counts as a subdomain, second level domain, etc. Keep in mind that there are top level domains, second level domains, and subdomains. Technically speaking, everything except the TLD is a subdomain. In the domain.com.uk example, “domain” … Read more
If you get this error with Firebase Cloud Functions, this is due to the limitations of the free tier (outbound networking only allowed to Google services). Upgrade to the Flame or Blaze plans for it to work.
const full = location.protocol + ‘//’ + location.host;
Most answers given here are false. It is perfectly legal to have an underscore in a domain name. Let me quote the standard, RFC 2181, section 11, “Name syntax”: The DNS itself places only one restriction on the particular labels that can be used to identify resource records. That one restriction relates to the length … Read more