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4 days agodeleted by creator
Oh no, you!
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Joined 8 months ago
Cake day: November 3rd, 2024
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Those are directory listings. They are the default in apache2 (maybe others as well… I only know apache2), unless disabled or disallowed in the configs (enabled and allowed by default). If the directory you’re accessing such as http://192.168.123.123/somedir/ does not contain a default file, such as an index.html, the directory list will be served instead.
It’s way too late at night for me to give an in-depth answer, but I just wanted to let you know that if you plan on adding drives over time, you might want to check out running the disks in JBOD instead of RAID and the use ZFS to create the storage volume. Redundancy supported, and you can add disks whenever you need more space. The disks don’t even have to be the same size.
Thank you. I help where I can.
I was considering something similar for my Volvo 940 about around 2010. The idea was that I’d install a touch screen as an infotainment system where I could see stuff like OBD2 data and navigation.
While not having a functioning speedometer for a little bit (later fixed), I used my phone to see the GPS speed with the screen flipped so I could get the speed on the windshield like a HUD in some modern cars. The plan was to do something similar integrated with the home brewed infotainment.
It annoys me that I never went through with it, because so much stuff of what I’d drawn up became standard for “fancy” cars later.
Pssst, take these: .,
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Anything that does the job is good enough. At its core a server is just a regular PC with a dedicated purpose and software. Sure, there are specialized hardware better suitable and purpose built, but it’s not a requirement.
I for one prefer 19" rackmount stuff with disk bays in the front, but that’s more of a convenience than anything.
UPS is nice, but it’ll work without it.
I’ve had to deal with the Brazilian computer market and how it’s ridiculously overpriced due to import fees, so in your situation I’d just get any hand-me-down computer. Servers generally don’t require much unless you’re doing something special or intensive.
Get your hands on whatever you can find for free or dirt cheap (laptop or desktop doesn’tmatter), install linux, and you have a basic setup that you can work with. If your use case requires more, then that’s something you can accommodate in the next iteration of your server.
To anyone in my jury: I just got back from the store and realized I had forgotten something. I’ll live without it.
A huge tape archive in a mountain. It’s pretty standard for geophysical data. I have some (encrypted) personal stuff on a few tapes there.
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Yes. China’s great firewall mostly handles content filtering and deals with low hanging fruit. Getting around it is fairly simple, and the censorship is mostly focused on stuff that would otherwise be easily accessible by the broader population.
VPN is your obvious choice here. CCP blocks most public VPN providers, so you’d have to roll your own.
You can set up a VPN concentrator somewhere in the world, and you would be able to reach it. As far as I’ve noticed, they don’t block VPN as a whole, and default port should work fine - the reason for this is probably that VPN has many commercial uses that they don’t want to harm.
Source: I run a (work-related) VPN accessible from inside china.
I hear the API development for alpha centauri is pretty far behind its peer.
Note: I have not done any research on the topic, but I’m just theorizing based on what I already know, as it’s an interesting mental excersice.
Obviously the biggest problems will be uplink and power. Solar and a battery bank is the obvious choice, but other methods of powers can also work, such as a small generator in a river, etc.
Lead acid batteries are relatively cheap, and building a 12V bank out of car batteries makes sense as there is plenty of off the shelf hardware available to invert or transform 12V into whatever you need. Charging it from solar will be inefficient, but it will work, and there is also plenty of hardware for this (tip: boat-related shops can help you out here)
As for hosting hardware we’re of course dealing with the constraints of load vs power consumption. If you can go for something like a raspberry pi zero, you can run for days off of a single car battery with those cheap 5v cigarette-pkug chargers. If you need something more powerful, you need to scale up power accordingly.
As for uplink, the question is “How much” off grid we’re talking. I will assume that there’s at least GPRS coverage that you can connect to with a 4G modem, even if you don’t get 4G speeds. Plenty of off-the-shelf hardware available here. If not applicable, just substitute with whatever is available, be it CDMA, packet radio, starlink (eww), or anything else.
Any way of having this study an existing database (or dump thereof) and build the graph? I have an oracle database that nobody understands, built by someone else, and I thought something like this could help…
Any way of having this study an existing database (or dump thereof) and build the graph?
Derp, yes. Corrected. VLAN numbers are obviously not related to port numbers in any way.
Yes, but that’s done on the switch. Basically VLAN tags are applied in one of two ways:
Untagged (sometimes called Access) is something you apply on a switch port. For example, if you assign a port to Untagged VLAN 32, anything connected to that port will only be able to see traffic assigned to VLAN 32.
Tagged (sometimesreferred to as Trunk), on the other hand, is for traffic that is already assigned a VLAN tag. For example Tagged 32 means that it will allow traffic that already has a VLAN tag of 32. It is possible to assign multiple VLANs to a Tagged port. Whatever is connected to that port will need to be able to talk to the associated VLAN(s).
In your particular case, the best practice would be to assign two ports (One for each host, obviously) to Untagged 32 (arbitrarily chosen number, any VLAN ID will do, as long as you’re consistent), and all the other ports as Untagged to a different VLAN ID. That way the switch will effectively contain two segments that cannot talk to each other.
As others have said: It will work as you’ve planned it. The subnetting will keep these two PCs separated (If they still need internet, just add a second IP in your router-PC to allow for communication with this subnet).
VLANs aren’t required, but are more relevant when you want to force network segregation based on individual ports. If you really want to, you can add tagged virtual interfaces on these two separated hosts so that the others hosts aren’t able to simply change the address to reach these. The switch should ignore the VLAN tag and pass it through anyway. But again, it’s not really needed, just something you can do if you really want to play with tagged VLAN interfaces
bash setup/config/PS1 is your friend here. I frequently find myself with a myriad of terminals between a bunch of usernames and servers at work, and setting up a proper prompt is key to help you keep track.
My bashrc makes my prompt look like this:
… with color coding, of course. Yes, I use a multiline prompt. I somehow never saw that before using ParrotSec despite being a bash user for 25 years. I modified the ParrotSec default to suit my needs better, and I like it:
I pasted my PS1 config here: https://pastebin.com/ZcYwabfB
Stick that line near the bottom of your ~/.bashrc file if you want to try it out.