What can protect a character from being possessed by a Ghost in the first place?

What can protect a character from being possessed by a Ghost?

What spells, class abilities, feats or magical items could stop a Ghost from possessing a character? i.e. before the Ghost can attempt to possess a character and force a Cha DC 13 saving throw.

Possession (Recharge 6). One humanoid that the ghost can see within 5 feet of it must succeed on a DC 13 Charisma saving throw or be possessed by the ghost; the ghost then disappears, and the target is incapacitated and loses control of its body. The ghost now controls the body but doesn’t deprive the target of awareness. The ghost can’t be targeted by any attack, spell, or other effect, except ones that turn undead, and it retains its alignment, Intelligence, Wisdom, Charisma, and immunity to being charmed and frightened. It otherwise uses the possessed target’s statistics, but doesn’t gain access to the target’s knowledge, class features, or proficiencies.

The possession lasts until the body drops to 0 hit points, the ghost ends it as a bonus action, or the ghost is turned or forced out by an effect like the dispel evil and good spell. When the possession ends, the ghost reappears in an unoccupied space within 5 feet of the body. The target is immune to this ghost’s Possession for 24 hours after succeeding on the saving throw or after the possession ends.

(MM p.147)

The obvious I can think of is a Cleric’s Turn Undead ability. Or using a spell like Magic Circle or waiting it out in Leomund’s Tiny Hut.

Why doesn’t Dijkstra’s use a shortest-path first search?

When using BFS search on an unweighted graph to find the single-source shortest paths, no relaxation step is required because a breadth-first search guarantees that when we first make it to a node, we have found the shortest path to it.

However, Dijkstra has no such guarantee, because the neighbours of each node are checked in no specific order. Therefore, we need a relaxation step to update the shortest path of each node if we later find a shorter path.

Instead of choosing a random neighbour, why not always follow the neighbour with the shortest path? I think that would guarantee we have always found the shortest path and no relaxation step is required. I implemented this in Python and it seems to work. Am I missing something?

from heapq import heappop, heappush  def shortest_path_lengths(graph, source):     dist = {}     q = [(0, source)]     while q:         cur_dist, v1 = heappop(q)         if v1 in dist:             continue         dist[v1] = cur_dist         for v2, v1_to_v2_dist in graph[v1].items():             if v2 not in dist:  # check it hasn't been visited already                 heappush(q, (cur_dist + v1_to_v2_dist, v2))     return dist   graph = {     'a': {'b': 3, 'c': 5},     'b': {'c': 1},     'c': {'d': 4},     'd': {}, } print(shortest_path_lengths(graph, 'a')) 

Does a DDOS attack on an application using CDN have to first bring down all the involved CDN servers to affect the application’s availability?

CDN are said to absorb and mitigate the Denial of Service and DDOS attacks. Consider an application that uses a CDN provider to deliver its content. So if an attacker tries to bring down such an application using DOS or DDOS, the flood of requests made during such an attack will go to the CDN servers. Will such a DDOS attack have to completely bring down all the CDN servers serving this application’s content before impairing the origin server completely?

Setting up second SSL certificate breaks images on first site

I have set up a new website and a new domain within my web space, but it appears that in doing so images on the original website have broken and I’m not sure how to rectify it.

The new website is located within a /p1/ folder of the root (https://www.p1-consulting.co.uk).

The original website is https://www.touringcars.net and runs WordPress, installed in the root directory.

TouringCars.Net has been running on an SSL certificate for several years now just fine.

I have now bought the new domain for P1 and an SSL certificate for it. But since doing so, images on TouringCars.Net are not displaying.

The .htaccess file in the root contains this rule:

RewriteCond %{HTTPS} !on RewriteCond %{SERVER_PORT} 80 RewriteRule ^(.*)$   https://www.touringcars.net/$  1 [R=301,L] 

Have I messed up in setting up the new P1 domain / SSL to affect the TouringCars.Net website?

What could be the bound of the number of elements of a models of a given first order sentence?

Sorry for the weird title.

The Problem:

Consider the first-order logic sentence

φ≡∃s∃t∃u∀v∀w∀x∀yψ(s,t,u,v,w,x,y) where ψ(s,t,u,v,w,x,y,) is a quantifier-free first-order logic formula using only predicate symbols, and possibly equality, but no function symbols. Suppose φ has a model with a universe containing 7 elements.

Which one of the following statements is necessarily true?

  1. There exists at least one model of φ with universe of size less than or equal to 3
  2. There exists no model of φ with universe of size less than or equal to 3
  3. There exists no model of φ with universe size of greater than 7
  4. Every model of φ has a universe of size equal to 7

My attempt:
There exist at least one s,t, and u in some domain. It is also given that there exist a model with 7 elements. i.e there is at least one instance of v,w,x and y as well, together making 7 elements with s,t,u. So any other model of φ must have at least these 7 elements as well. Any model cannot have more than seven elements because there are only seven given. i.e every model of φ will have exactly seven elements. So Option 4 seems to be the right one.

I wish to develop intuition to solve these problems. Also I want to know your thought process and how you solve this problem. Thanks.

Which absorbs damage first: temporary hit points or Arcane Ward?

Suppose I am an abjuration wizard with 3 temporary hit points and 5 hit points on my Arcane Ward. If I take damage, which hit points absorb damage first? For example, what will be my status after taking 4 damage? Will this damage force me to make a saving throw to maintain concentration? (In case it matters, assume that I have 30 hit points.)

As written, it seems that both effects trigger simultaneously (emphasis added):

Arcane Ward:

Whenever you take damage, the ward takes the damage instead.

Temporary hit points:

When you have temporary hit points and take damage, the temporary hit points are lost first, and any leftover damage carries over to your normal hit points.

Is better to have as password a setence or first letter of the setence?

Which is better master KeePass password to prevent bruteforce between theses two type of password :

  • Complete sentence invented by user like : I like cheeseburger, tomatoes and fries ! 🙂

  • Each first letter of the word with lower and higher case : Ilcb,tAf!:)

Edit : My hesitation come from the facto that the sentence indeed is more longer but, it composed of real words which could be taken from a dictionnary.

Using a Telephone Number Tracer for the First Time? Here’s What You Need to Know

If you haven’t used a phone variety tracer before, you might have some questions. To make it short: a reverse search offers you the ability to get a name (and plenty more) from a telephone variety phone number list. You won’t need whatever else, simply the 7 digit smartphone number and a pleasant website.

[Image: USA-Business-Phone-List.jpg]

If they have the facts in their database you can certainly make sure to get plenty of useful records. However, due to the fact a few human beings exchange their cellphone regularly or they pass to another residence, the phone number won’t be available or their data is old.

Furthermore, a lot of us choose to have an unlisted smartphone wide variety to cover from the white pages. This could make it quite a venture to effectively get legitimate and up to date facts on a person’s smartphone number. But with a good phone range tracer you can get that records, although their number isn’t always listed. So what form of facts can you get from these services?

– Name: If the phone quantity is on their listing, you may without difficulty get the entire name of the caller.

– Address: You can also get their specific deal with, even if they took the precaution to get an unlisted phone wide variety.

– Email address: If you need an email deal with to touch someone who’s calling you, this information might be available as nicely.

Tracing a smartphone, whether or not it’s a landline or a cellular smartphone, you can get definitely treasured records on every body who is trying to continue to be nameless. You can also use a opposite telephone search engine in terms of coping with pranksters, simply jot down the facts the opposite directory displays for your pc and either call the or their dad and mom again to straighten them out for once and for all.

Can full first order knowledge base be written as the single sequent in the sequent calculus?

The knowledge base of the first order logic essentially is single formula: conjunction of individual formulas (I guess, I am right). The sequent for the sequent calculus is the formula in the special form – it is implication with the conjunction on the left hand side and the disjunction on the right hand side. Turnstile symbol and commas can be used to write down this special knid of formula. I have heard, that every FOL formula can be rewritten as the sequent, am I right. Then one can conclude that every knowlege base can be written as the single sequent. And every reasoning over this knowledge base can be expressed as the application of the sequent rules (in top-down or bottom-up direction). Am I right?

Am I right about this format? And why the sequent calculus are not used wider in the practical applications, implementations of the knowledge bases?