ip – Will an unconfigured ethernet port in Ubuntu 16.04 be connection local if it is connected to a connection local device?

If I connect a connection-local IP camera to an unconfigured Ethernet port under Ubuntu 16.04, does this port recognize the connection-local device and configure itself accordingly?

(I ask because I had a confusing network configuration problem and if it were true it would explain it.)

If so, can I prevent this by simply setting up a static configuration for this interface in / etc / network / interfaces?

If this is not the case, what else can lead to a port that is not explicitly configured in interfaces becoming local to the connection?

Router – I try to port forward on my Fritz Box

Ok, so I'm trying to forward a port on my Fritz Box 7490 to host a Minecraft server, but once I get it right it doesn't work, the port isn't open and the IP address I want to join , leads to nothing. Please help, I tried everything I can think of like deleting the port forwarding setting, resetting the router to factory settings, resetting the computer to factory settings, using a different computer, but nothing works …

display – display port intermittent, but only when using two monitors

After about a year and a half without any problems, one of my wife's monitors turned episodes on and off every few seconds, occasionally with the error "Input out of range". Meanwhile, each monitor works on its own, but when both are connected, the display port on the computer and DVI on the monitor flash (via an adapter). Disconnecting the VGA monitor "heals" the display port 1. By exchanging monitors, the problem with the display port remains, regardless of whether the monitors are mirrored or the desktop is expanded. The monitors are identical to HP2310m, one via VGA, the other via a Displayport to DVI adapter. The computer is a revised small HP 8300 Elite form factor with integrated Intel graphics. Additional data point – The monitors are incorrectly identified in the settings, the 1 and 2 on the monitor screens themselves do not match those in the settings, and changing monitor 1 in the settings affects 2 instead.

I would attribute this to bad hardware, except that we had an identical problem on identical hardware that was the reason for switching to this box. This computer had DVI and VGA outputs. (I remember that the problem with the computer connection remained, I don't remember which one it was). I don't remember if the current computer was rebuilt or if I moved your SSD to the new computer. I left your SATA hard drive on the old box and moved your home folder to the SATA drive in the new / revised computer. The new computer was trouble-free until the last few days.
Is there a significant chance that this is a software problem that can be fixed without further hardware replacement?

node.js – port on 443 on my router (BGW210-700) cannot be forwarded for hosting home server websites

I am trying to forward to port 443 of my ARRIS BGW210-700. However, an error message is displayed: "The port range 443-443 in service conflicts with the port 443-443 managed by the device". I cannot forward the port in the firewall under NAT / Gaming to host a web server from my local computer the internet. But for port 80 it is, but I need my page to be https. Is there an ideal way I can get my router to forward 443?

for more information:
My server is a NodeJS
https nodejs native module that I use
Domain name brought by Godaddy

Terminal – How to close an open port in Mac?

When using Netstat (within the network utility) I discovered an unusual IP address. This IP address occasionally uses 9 different open ports, including ports 9998 and 9999. I also did a zenmap scan and found that the service name for port 9999 was "Abyss" – I looked it up, and it appears to be one malicious service.

The unusual IP address was shown in the Netstat option. "Show status of all current socket connections". The IP address doesn't appear to be associated with any applications on my computer (e.g. not from Apple, Amazon, etc.).

The unusual IP address appears to use the following open ports: 22, 80, 110, 143, 443, 993, 995, 9998 and 9999. Apparently, ports 80 and 443 use the "http" service.

I tried to figure out how to close these open ports, but I can't figure out how; it's very frustrating. I am using Mac OS Sierra. The "lsof" command in the terminal does not work. I type lsof (for example lsof -i: 9999) and nothing happens. Is there a terminal command (except lsof) that can close open ports?

One option that doesn't work is the "tcpkill" command, which appears to close TCP ports. However, it needs to be downloaded and I can't figure out how to download it.

Is there a Mac program that specifically closes open ports?

It's really annoying that programs like Network Utility (Netstat) and Zenmap tell you which ports are open but don't tell you how to close them.

Is there also a way to blacklist (block) a specific IP address so that no connection can be made? (Can this be done in the terminal?) This is useful for ports that I probably want to keep open (e.g. port 80) but want to block the connection of a specific IP address.

Firewall – Access a node port service in a private GKE cluster from another private GKE cluster

I use the Google Cloud and have two private GKE clusters.

One of them contains some services that are installed as nodePort. The other cluster must connect to it and access the services provided.

The cluster with disclosed services has only one node with a private IP. With this private IP, I can successfully ping this node from another cluster.

But how can I access the services?

I also tried to configure some firewall rules to no avail.

Neural Networks – Change the input port dimensions in NetChain with NetMapOperator

Today I tried to create a completely convolutional 3D DeconvolutionLayer. However, I encountered a particular problem.

Let's define the 3D plane as follows:


Then when I call


I get a 3D DeconvolutionLayer. However, it doesn't seem to be fully folded because I can't readjust the ports and the following indicates an error:


Oddly enough, if I remove the last one NetMapOperator[] In the DeconvolutionLayer function I can adjust the input again:


Am I doing something wrong?

Can I connect a Firewire device and an HDMI display to the 2015 Macbook Air with a single Thunderbolt 2 port?

I have a Korg ZERO4 mixer with two Firewire ports (not sure whether 400 or 800).

I used this mixer via a Firewire -> Thunderbolt adapter. Now I would like to add a monitor connected via HDMI to this setup.

Can I daisy chain a monitor using a second Firewire -> Thunderbolt adapter in combination with a Thunderbolt -> HDMI adapter?

How would I proceed to find out the maximum supported resolution in this setup?

Linux – Is my server safe from remote hackers if I only allow 1 port and 1 service behind it that hashes only the incoming byte stream and sends back the hash key?

I have a python script that accepts an incoming connection, reads from the bytestream, hashes it (I'm pretty sure the hash function itself cannot be used), sends back the hash key, and then closes the connection.

Is my server secure (by sure I mean that the data on my server is not leaked and does not have to be served 7×24 in the event of an attack) if I only allow the port that my script is listening on (e.g. 30000) and all lock other ports?

Nothing is running on this computer except the operating system (in this case Ubuntu) and the above-mentioned Python script. I am not using this computer to do anything other than this (like browsing websites etc., I am not doing it on this machine).

Macbook 16 "does not extend the desktop with display port chaining

I have a new Macbook 16 "with 10.15.3 OSx and an AMD Radeon Pro 5500M 4 GB for the graphics card and cannot expand the desktop with just a concatenation of the display port.

The monitors I want to daisy chain are a Dell P2719HC 27-inch (1920 x 1080) and a Dell U2415 24-inch (1920 x 1200). The 27 "is a new monitor that I got with the laptop, but the 24" that I have had for several years and that was used in a linked model with my Lenovo laptop that I am moving away from.

I have tried the following configurations to no avail and the best I have been able to achieve is that the 24 "reflects the 27" but never extends to my own desktop.


MBP USB-C -> 27 "USB-C (MST activated) -> DP -> 24" DP (DP 1.2 activated) = "mirror"

MBP USB-C -> 27 "DP (MST activated) -> DP -> 24" DP (DP 1.2 activated) = "mirror"

MBP USB-C -> 27 "DP (MST activated) -> DP -> 24" DP (DP 1.2 deactivated) = "mirror"

MBP USB-C -> 24 "DP (DP 1.2 activated) -> DP -> 27" DP (MST activated) = "Unsynchronized error at 27"

MBP USB-C -> 24 "DP (DP 1.2 activated) -> DP -> 27" DP (MST deactivated) = "Unsynchronized error"

Unleashed (Use two cables to drive them at the same time)

MBP USB-C -> 27 "USB-C (MST activated) =" Extended "

MBP USB-C -> 24 "DP (DP 1.2 activated) =" Extended "

What causes the chaining to only mirror?