As you know, networks that are domain-based are common in organizations and companies. These domain-based networks require multiple computers to be controlled through a single node known as a server. And the one that sets certain policies and restrictions on every system that is joined to the domain is the server administrator.
So if you want to add your computer to a domain, you need to have the following information available:
In this post, you will be guided on how you can join or remove a domain. To get started, follow the given instructions below.
If you would like your computer to be discoverable on your network and use print and file sharing you will have to change your network profile on your computer from public to private.
Follow the provided guide step by step to change your network profile setting:
Locate the Wi-Fi icon in your system tray and click on it. Click on properties on your WI-FI network to open the network menu. Inside the menu in the Network profile section enable the Private option.
Your changes will be automatically saved.
Find the WI-FI icon in the system tray and right-click on it, then choose Network and Internet Settings. Network & Internet page with open, find your network name at the top and select properties.
On the WI-FI page, in the Network Profile Type section choose Private. As in Windows 10, your changes will be automatically charged, and you can start using them immediately.
If you want to switch back to a public profile follow provided steps but disable the private option.
The true cause is that there is no working Border Gateway Protocol (BGP) routes into Facebook's sites. BGP is the standardized exterior gateway protocol used to exchange routing and reachability information between the internet top-level autonomous systems (AS). Most people, indeed most network administrators, never need to deal with BGP.
Cloudflare VP Dane Knecht was the first to report the underlying BGP problem. This meant, as Kevin Beaumont, former Microsoft's Head of Security Operations Centre, tweeted,
"By not having BGP announcements for your DNS name servers, DNS falls apart = nobody can find you on the internet. Same with WhatsApp btw. Facebook has basically de-platformed themselves from their own platform."
Many people are very annoyed by this and with the fact that they cannot use their social media platforms but it seems that Facebook employees are in even bigger annoyance as it was reported that Facebook employees can't enter their buildings because their "smart" badges and doors were also disabled by this network failure. If true, Facebook's people literally can't enter the building to fix things.
Reddit user u/ramenporn, who claimed to be a Facebook employee working on bringing the social network back from the dead, reported, before he deleted his account and his messages:
"DNS for FB services has been affected and this is likely a symptom of the actual issue, and that's that BGP peering with Facebook peering routers has gone down, very likely due to a configuration change that went into effect shortly before the outages happened (started roughly 1540 UTC). There are people now trying to gain access to the peering routers to implement fixes, but the people with physical access is separate from the people with knowledge of how to actually authenticate to the systems and people who know what to actually do, so there is now a logistical challenge with getting all that knowledge unified. Part of this is also due to lower staffing in data centers due to pandemic measures."
Ramenporn also stated that it wasn't an attack, but a mistaken configuration change made via a web interface.
Both BGP and DNS are down, the "connection to the outside world is down, remote access to those tools don't exist anymore, so the emergency procedure is to gain physical access to the peering routers and do all the configuration locally."
Technicians on site don't know how to do that and senior network administrators aren't on site.
It seems that it will all be down for a couple of more hours before the issue is resolved. 