Wikipedia:Reference desk/Archives/Computing/2022 December 11

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December 11

Single-session.

So years ago, I had asked what is it called when you login say to your e-mail on another computer, and that's fine, but other environments when you log in, it gives you an error saying you are already logged in elsewhere, and the other is forced-logged off. So I was told, multi session vs. single session. Now my question is, there's 2 types of single-session: 1 where the networks forces log-off the 1st session (and notifying you of that), and the other is it prevents you to log in the 2nd place, until you log off the 1st place 1st. Is there a terminology for this kind of thing too? 67.165.185.178 (talk) 14:59, 11 December 2022 (UTC).

I don't know the exact term, but I think this sort of situation is fairly fully discussed in this Java forum on Stackoverflow:[1] MinorProphet (talk) 14:21, 15 December 2022 (UTC)

Some DNS entries redirecting to loopback? (Linux Mint)

Resolved

Recently I've been having this issue where pretty much every website loads normally, however if I try to navigate to google.com I get a "website not found" error from the browser. So I sent out a ping and found that the web address that google.com is resolving to is 127.0.0.1! I have flushed my DNS caches and restarted the computer to no avail. Not being much of a network guru, I'm frankly at wits end. Any suggestions? Earl of Arundel (talk) 21:42, 11 December 2022 (UTC)

What OS are you using? Many systems have an /etc/hosts file or something similar which can manually override DNS mappings. I would check that first. CodeTalker (talk) 21:44, 11 December 2022 (UTC)

Sure enough, that did the trick. Thanks for the help! Earl of Arundel (talk) 21:58, 11 December 2022 (UTC)

Hello all, I have a Catalyst 3560 as my core with multiple VLANs, then it goes through an ASA 5510, and after that it goes through a Router 3945. Eutropiuswc (talk) 09:38, 15 December 2022 (UTC)

Hi, @Eutropiuswc: Do you have a question? Having had a look, all the kit is Cisco, I would say suitable for a fairly busy office network. The Catalyst 3560 is a gigabit ethernet switch plus two SFP ports, which I believe has a cut-down version of the CIOS used on the routers, having used something similar several years ago. Some have basic RIP and static routing, upgradable to full dynamic IP routing. The ASA 5510 is an Adaptive Security Appliance, basically a high-throughput hardware firewall with multiple VLAN capability, with cheaper models capable of 50,000 concurrent sessions with up to 130,000 with an updgrade. The 3945 router with full Cisco IOS has two SFP ports with various capabilities. The switch and router are both past end-of-life. Should this be in a new thread? MinorProphet (talk) 15:43, 15 December 2022 (UTC)