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The invariant mass of an electron is approximately 9.109×10−31 kilograms, or 5.489×10−4 atomic mass units.
At the same time, a photon cannot have mass and, therefore, weighs nothing.
It depends.
It was only in wine that he laid down no limit for himself, but he did not allow himself to be confused by it.
― Confucian Analects: Rules of Confucius about his food
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Gerry Schmitz wrote: photon cannot have mass and, therefore, weighs nothing.
How much does light weigh? | HowStuffWorks[^]
Social Media - A platform that makes it easier for the crazies to find each other.
Everyone is born right handed. Only the strongest overcome it.
Fight for left-handed rights and hand equality.
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Nevertheless, "lightweight" is a recognized adjective.
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The idea weighs heavy on my mind.
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.
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Have you never dropped a computer manual on your foot, then?
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Somebody is confusing two things:
1: The storage of information with the actual information, which is independent of both the storage media and it's transmission medium. My Date of birth is "information" (of a kind) but it is the same data regardless of the medium it is recorded on (but will have a different mass depending on that medium)
2: That 1's have mass and 0's don't, or that 1's are information, and 0's aren't. All options in a system are required in order to have information: try compressing data by removing all the 0's because "they have no meaning" and you'll see what I mean.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!
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Don't confuse information with the various media for storage, retrieval, and transmission.
And would copying a file _create_ mass?
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Hi all, I need to remotely access my home Linux hosted Postgresql database remotely - I'm thinking maybe a VPN is the way to go but thought I'd ask you lot first
"We can't stop here - this is bat country" - Hunter S Thompson - RIP
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I do similar and yes I use VPN for it. From my point of view an easy way and especially a very secure way.
It does not solve my Problem, but it answers my question
modified 19-Jan-21 21:04pm.
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Which VPN do you use ?
"We can't stop here - this is bat country" - Hunter S Thompson - RIP
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Were you seriously considering doing it without a VPN?
If so, your ideas may require some revision.
It ain't rocket surgery; you'll get the drift within a couple of hours.
I wanna be a eunuchs developer! Pass me a bread knife!
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No I wasn’t that’s why I’m asking here 😩
"We can't stop here - this is bat country" - Hunter S Thompson - RIP
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pkfox wrote: No I wasn’t that’s why I’m asking here 😩
Cool. I can't fault you for asking (I end up telling people how to use the stuff we make, so I'm something of an expert on asking stupid questions -- which are a Good Thing).
Yes, you should use VPNs. If you hear otherwise, people are giving you bad, and very dangerous, advice.
Randor has suggested a solution I would seriously consider to use in what seems to be your problem space, so I would follow his suggestion, and also search on similar solutions (using keywords given by Randor and the site he suggests), to make a decision after looking into it with an eye on what fits your situation best.
If you're not sure, though, don't make a decision on what might seem right. It's rare to find two places with identical problems that fit the same pre-made solution, so look at everything available, before making a decision.
Good luck, and kudos for asking for advice before jumping in.
I wanna be a eunuchs developer! Pass me a bread knife!
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Mark_Wallace wrote: Yes, you should use VPNs. If you hear otherwise, people are giving you bad, and very dangerous, advice.
Well, he would be able to access his database. Including many others...
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Thanks very much
"We can't stop here - this is bat country" - Hunter S Thompson - RIP
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Hi,
Wireguard[^] is quickly becoming the industry standard. The whitepaper is here[^]. You should invest a few minutes researching it.
Best Wishes,
-David Delaune
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this is great info. thanks.
diligent hands rule....
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Thanks very much I'll check it out
"We can't stop here - this is bat country" - Hunter S Thompson - RIP
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I use a reverse SSH connection.
This will open a port on your local machine and tunnel it to your postgresql box. It's especially usefull when developing because you can always connect to localhost:5432 on your local machine instead of having to deal with connection strings and everything else. You don't even need to supply the login credentials to your server.
It's way simpler then setting up a VPN and you still get all the security benefits (encryption, etc).
There is also another (way cooler IMO) benefit. Bind the postgresql server to localhost:5432 and no one can connect to it, even from inside your lan but this might not e usefull to your case.
IMO this makes it even more secure then just using a VPN.
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Hi there, sounds interesting how would that work connecting from a remote windows box to a remote ( my home server ) Linux server ?
Essentially what I'm trying to achieve is, I'm in the process of writing a Winforms app that connects to a Postgresql database at my home, but I would like to be able to use/develop the app on my Windows Laptop/Tablet when I'm not at home - thanks again for your time
"We can't stop here - this is bat country" - Hunter S Thompson - RIP
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Hi!
In that case you have 2 options. The one I use is to configure your router to portforward an external port (say port 12345) to port 22 to you linux server. Then just use PuTTY on windows (or JuiceSSH on Android. I use both) to connect to <router_public_ip>:12345 as a reverse proxy.
PuTTY, in turn, will open local port 5432 on your windows laptop/home computer.
If you don't want or can't use portforward (e.g. the external IP of your router changes a lot), you have a second option. You can use something like SSHReach.me[^] . It works the same way but it's easier to setup. Then you just connect to their servers instead of your router.
After this is setup, make your WinForms app connect to localhost:5432 and it will work. The beauty of this is that PostgreSQL thinks you are connecting from localhost so you don't need to send your password.
I'm not sure if it's easier then setting up a VPN but for programming it provides (IMO) a lot more flexibility and (maybe) security then a VPN.
I'll see if I can send you my PuTTY configuration when I get home.
If all this is a little confusing (it was for me) take a look at this SO answer: networking - How does reverse SSH tunneling work? - Unix & Linux Stack Exchange[^] .
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Wow that sounds good but how does the app know that Putty has done some magic ?
"We can't stop here - this is bat country" - Hunter S Thompson - RIP
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