nut | Network UPS Tools repository | Wifi library
kandi X-RAY | nut Summary
kandi X-RAY | nut Summary
Network UPS Tools is a collection of programs which provide a common interface for monitoring and administering UPS, PDU and SCD hardware. It uses a layered approach to connect all of the parts. Drivers are provided for a wide assortment of equipment. They understand the specific language of each device and map it back to a compatibility layer. This means both an expensive high end UPS, a simple "power strip" PDU, or any other power device can be handled transparently with a uniform management interface. This information is cached by the network server upsd, which then answers queries from the clients. upsd contains a number of access control features to limit the abilities of the clients. Only authorized hosts may monitor or control your hardware if you wish. Since the notion of monitoring over the network is built into the software, you can hang many systems off one large UPS, and they will all shut down together. You can also use NUT to power on, off or cycle your data center nodes, individually or globally through PDU outlets. Clients such as upsmon check on the status of the hardware and do things when necessary. The most important task is shutting down the operating system cleanly before the UPS runs out of power. Other programs are also provided to log information regularly, monitor status through your web browser, and more.
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class Planet {
void revolve() {
System.out.println("Revolve");
}
public static void main(String[] args) {
Planet earth = new Planet();
earth.revolve();
}
}
class Planet {
void revolve() {
System.out.println("Revolve") Community Discussions
Trending Discussions on nut
QUESTION
I'm trying to use NavigationLink's isActive variable to pop back to the root view controller.
The problem I'm experiencing is that using isActive pushes the wrong row when clicking on a list item. Remove the isActive variable and everything works as expected.
Here's some example code for demonstration purposes:
...ANSWER
Answered 2021-Jun-14 at 21:41Because activateNavigationLink is just a Bool in your code, if it is true, every NavigationLink will register as active in your List. Right now, this is manifesting as the last item (C) getting pushed each time.
Instead, you'd need some system to store which item is active and then translate that to a boolean binding for the NavigationLink to use.
Here's one possible solution:
QUESTION
I wrote an AppleScript to synch my Reminders (via export to JSON). It runs great... from the Script Editor. As soon as I tried to run it on the command line via osascript, I discovered it hits a wall when it tries to access reminders. After maybe a minute and a half, I get this error:
ANSWER
Answered 2021-Jun-07 at 06:12Wrap your script with timeout of 3600 seconds (1 hour). Your script time outs with default time = 2 minutes (120 seconds) per command. So,:
QUESTION
I have a super simple code snippet here, but no matter which editor I use (Webstorm, VSCode) I get red underlines under my SearchBar's "onChangeText" property with the following message:
...ANSWER
Answered 2021-Jun-12 at 00:00The compiler believes that your updateSearch function might be called in a context that expects () => any, presumably because of typing on the onChangeText attribute. Since your function could be called without any arguments, the compiler thinks it's an error for your function to require any argument. You can fix this by making the val argument optional, such as with a reasonable default:
QUESTION
I'm working with a CyberPower PDU: https://www.cyberpowersystems.com/product/pdu/switched-ats/pdu15swhviec12atnet/
According to snmpwalk -v1 -m CyberPower_MIB_v2.9.MIB -c public 10.42.0.2 iso.3.6.1.4.1.3808, the management card model is RMCARD205 and the full model name is PDU15SWHVIEC12ATNET.
I would like to programmatically control the power to the ports, doing this via SNMP seems the most robust option. I can query the status of port 3 (say) with,
...ANSWER
Answered 2021-Jun-10 at 13:12I found the answer to my question and will post some details here, in case others are as confused as I was!
The first tip is to use the device manufacturers MIB files. CyberPower published a single MIB file (which is basically a textual description of all the properties in the hardware devices) that allows the net-snmp tools to print descriptive names for the otherwise opaque OIDs. For example, to see what I was attempting to set above, after downloading the MIB file into the current working directory,
QUESTION
I'm having a problem with my first Web Application. I use IntelliJ as IDE and Tomcat as Webserver. Every servlet I've tried to acces, throws an 404 Error. Even if I copy some youtube tutorials, which seems to work like a charm.
The button in the form sends me to: http://localhost:8080/IUBHQuiz/login
Can you tell me whats wrong? I am going nuts.
login.java
...ANSWER
Answered 2021-Mar-25 at 22:17I had the same issue while reproducing the problem reported at IntelliJ IDEA forums.
It didn't work with Tomcat 10 for the reasons described in the answer by Piotr P. Karwasz, but it works just fine with Tomcat 9.0.44 and earlier versions.
QUESTION
Over many years I've struggled with this same issue. I cannot seem to work out how to use a JavaScript library from TypeScript, reliably.
I seem to get it working by accident and then move on and not revisit such code for years until a extrinsic change forces a breakage, like today when I updated VS 2019.
I've spent days reading about modules and requires and loaders, but I get more and more confused.
Example. I want to use DayJS in a TypeScript .ts file I am writing.
Here's the sample code.
...ANSWER
Answered 2021-Jun-04 at 18:38I share many of the same frustrations! It's so hard to get Typescript working nicely with Javascript and the microsoft documentation is so obtuse!
In your case : the path to a library is always looked for in node_modules so in that case you don't need to add the full path.
You also never need to import a .d.ts file. You can just put the .d.ts file somewhere in your working folder and VS Code will detect it.
If you have the .d.ts file for moment.js, you will get type completion in VS Code. You don't need to import moment.js when you load it with a
QUESTION
#!/usr/bin/awk -f
BEGIN {
FS="><";
print "XML Tags";
}
{
for(x=1; x<=NF; x++) {
if (x==1) {
f=$x">";
} else {
f="<"$x">";
}
if (f!="\n") {
printf f"\n";
}
}
}
END {
print "End of tags";
} $1;
ANSWER
Answered 2021-May-25 at 11:30Instead of fight with awk you can use xmllint to make pretty print of XML:
QUESTION
I've been stuck on the second part of the following question from Skiena (The Algorithm Design Manual, 3rd ed.) for the past 24 hours and it's driving me nuts! I'm struggling to come up with new ideas at this point, and would appreciate some tips/solutions.
Exercise 4-27 Suppose you are given a permutation p of the integers 1 to n, and seek to sort them to be in increasing order [1, . . . , n]. The only operation at your disposal is reverse(p,i,j), which reverses the elements of a subsequence (p_i, ..., p_j) in the permutation. For the permutation [1, 4, 3, 2, 5] one reversal (of the second through fourth elements) suffices to sort.
- Show that it is possible to sort any permutation using O(n) reversals.
- Now suppose that the cost of reverse(p,i,j) is equal to its length, the number of elements in the range, |j − i| + 1. Design an algorithm that sorts p in O(nlog^2n) cost.
The first part appears fairly straightforward if we brute-force it: locate the position of the largest/smallest value and reverse the subsequence that will place it in the correct position. Repeat for the next largest/smallest value until the sequence is in the correct order. Clearly this requires n reversals at most.
But if I apply this brute-force approach to the second part of the question, it seems like the cost could be O(n^2) in the worst-case scenario. Anyone got any suggestions?
...ANSWER
Answered 2021-May-31 at 16:53There is an algorithm for in-place merge sort that fits:
- Sort the beginning half of the array;
- Sort the last half of the array;
- Merge the two halves in-place.
The merge takes O(N log N) time:
- Determine the number of elements in the first half that belong in the second half;
- Swap those last elements in the first half with the first elements in the second half. You can do this with 3 reversals
- Recursively merge the 2 pieces in the first and last halves
Since merge takes O(N log N) time, the whole sort takes O(N log2 N) time.
QUESTION
I want to turn off ALL (or at least most of) conventions in Entity Framework Core (and I am talking about EF Core 5 or above) and then build the whole model "by hands".
One may wonder why.
Here is why: I have a task to migrate several large legacy databases from Entity Framework 6 (EF) to Entity Framework Core 5 (EFC). This involves many hundreds of tables and several databases. Some of these databases are created using a Code First approach and some are just third party databases, which we need to query and update from C# code. For the latter databases we must match their schema exactly.
Due to the size of the problem both EF and EFC flavors of the code must coexist for, let's say, several months. This can be easily achieved by using conditional compilation (see below).
Most likely anything that is not supported or is inconveniently supported in EFC in comparison to EF (or was "hacked" into EF models), like spatial indexes, multi-column KeyAttribute PKs, multi-column ForeignKeyAttribute FKs, self-referencing multiple times tables, multiple indexes defined on the same columns (some are filters and some are just regular indexes), and so on and so forth is there.
That's fine. I can easily deal with EFC inability to deal with that by "overriding" the attributes using conditional compilation, e.g.
ANSWER
Answered 2021-Jun-01 at 08:18It's possible by building the IModel by hand
QUESTION
Please consider the following (part of) IApplicationBuilder and IWebHostEnvironment configuration:
...ANSWER
Answered 2021-Jun-02 at 07:26You can try following code:
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