## Why does Wireshark not recognize WCF traffic as TLS encrypted?

In a .NET application, communication between client and service can be implemented using various different bindings, NetTcpBinding being one of them.

The class defines an attribute named Security, which, according to this article, defaults to Transport.

This further article explains how Transport works:

The NetTcpBinding class uses TCP for message transport. Security for the transport mode is provided by implementing Transport Layer Security (TLS) over TCP. The TLS implementation is provided by the operating system.

This sounds to me as if, upon connecting with a WCF Service, the client would perform a TLS handshake. However, if I watch the traffic with Wireshark 3.2.3, the traffic is only recognized as “TCP”, with no TLS handshakes in sight. If there is a TLS handshake going on, shouldn’t Wireshark recognize it as such? Why does it only see generic “TCP Data”?

## proving that a turing machine which stops at every input and recognize the complement of L

i would like to prove that the deterministic TM M stops on every input and L(M) = L. Prove that there exists a deterministic TM M1 that stops on every input and recognizes the complement L of language L, that is L(M1) = L.

## Listener does not recognize an instance

We have been running several instances in the past: PUC and PST. Access to PUC is still working but recently I tried to access the PST instance and we get the following message from Listener:

D:\app\swtoracle\product.1.0\dbhome_1\BIN>lsnrctl services pst

LSNRCTL for 64-bit Windows: Version 12.1.0.2.0 – Production on 14-FEB-2020 13:13 :44

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=swtoracle-db)(PORT=1521) )(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=pst))) Services Summary… Service “CLRExtProc” has 1 instance(s). Instance “CLRExtProc”, status UNKNOWN, has 1 handler(s) for this service… Handler(s): “DEDICATED” established:0 refused:0 LOCAL SERVER Service “puc” has 1 instance(s). Instance “puc”, status READY, has 1 handler(s) for this service… Handler(s): “DEDICATED” established:61 refused:0 state:ready LOCAL SERVER Service “pucXDB” has 1 instance(s). Instance “puc”, status READY, has 1 handler(s) for this service… Handler(s): “D000” established:3 refused:0 current:0 max:1022 state:ready DISPATCHER (ADDRESS=(PROTOCOL=tcp)(HOST=swtoracle-db)(PORT=49171)) The command completed successfully

Any ideas why it does not appear to see the PST instance? Thanks

## Would detect magic recognize a creature or object affected by true polymorph?

Straightforward issue here: in the D&D 5e version of True Polymorph, the creature or object becomes permanently polymorphed into the creature or object of the caster’s choice after an hour has passed. Down the line, if a caster used the detect magic spell and examined the newly transformed creature or object, would they be able to detect magic?

In other words, if a wizard transformed an adventurer into a spoon with true polymorph, waited 61 minutes and tossed the spoon into a drawer full of perfectly normal spoons, would one of the party members then be able to use detect magic to determine which of these spoons is their party member?

## Can a Non-Deterministic Pushdown Automata recognize $\# a^nb^{2^n} \#$ which a TM can?

$$\# a^nb^{2^n} \#$$

such that

• The alphabet of the machine is {, a, b, x}.

• The symbol x will never appear on the input a.

• The contents of the tape at completion may be anything.

• The head begins on the lefthand #.

• n ≥ 0.

I know that a Turing machine could recognize this language. But can a NPDA recognize this language too? I am thinking it can but I do not know how to start proving how/why?

## Ubuntu 18.04.3 doesn’t recognize 2. montor after running these commands

I executed these commands:

sudo bash -c "echo blacklist nouveau > /etc/modprobe.d/blacklist-nvidia-nouveau.conf"  sudo bash -c "echo options nouveau modeset=0 >> /etc/modprobe.d/blacklist-nvidia-nouveau.conf"  sudo update-initramfs -u  sudo reboot 

But after rebooting, my 2. monitor is black and Ubuntu is not able to detect it. I went to Settings->Devices->Display and now I can only see my main monitor and not my second. Before running these commands, everything worked. How can I redo this?

I ran this commands in reference to this post.

## Ubuntu won’t recognize Razer Core X Chroma

I think this is the first time I haven’t been able to find a solution or piece together one on Google before so here I go.. I have a 13″ Razer blade and a Razer Core X Chroma. It connects perfectly and easily over Windows but I’d like to be able to make it work on Ubuntu too. I’m on a fresh install other than the fact I updated some intel drivers and installed amd drivers (for my Radeon RX Vega 64 from the amdgpu-install script). The first (and maybe largest hurdle) is that I can’t get ubuntu to recognize the dang thing’s even plugged in. The settings gui just shows the standard “Thunderbolt could not be detected.” grayed out error while lspci shows the following output-

  lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08) 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07) 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21) 00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21) 00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #3 (rev f1) 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1) 00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) 01:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32) 02:00.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 03:00.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 03:01.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 03:02.0 PCI bridge: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C step) [Alpine Ridge 2C 2016] (rev 02) 04:00.0 System peripheral: Intel Corporation JHL6340 Thunderbolt 3 NHI (C step) [Alpine Ridge 2C 2016] (rev 02) 05:00.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] (rev 02) 3b:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981 
Also boltctl power -q shows the following-
supported: yes power state: on 1 active power guards:   guard '4'    ├─ who: boltctl    └─ pid: 2650 
Both boltctl list and boltctl domains show absolutely nothing. I honestly don’t care about using the GPU, I just want to be able to use my keyboard and mouse that’s hooked to it so if anyone can help me, I promise you \$  20 anyway you want it.


## Ubuntu 19.04 Installer Will not Recognize Win 10 for Dual Boot Install

Im new to Linux and know almost nothing about bootloaders and BIOS. Im trying to install Ubuntu 19.04 on my win10 machine, but after 7 hours have been unable to install, as Ubuntu will not recognize that win10 exists on the filesystem and will only allow the Erase option.

I have gone into the BIOS and played with every combination of settings that have been mentioned on several guides/questions relating to this problem

What im Trying to install: Ubuntu 19.04 from a USB drive (called Ubuntu amdx64)

What im trying to install on: Windows 10 version 1903 Build 18362.388

I formatted the drive with Rufus using both of the following settings Rufus settings 1 Rufus settings 2

Things that have been done since I started: Disabled Fast Boot Disabled Fast Startup in Win10 Made sure C: drive was error free and ran chkdsk

I have performed any combination of:

Here are my system specs My machine info

As noted i have looked through several guides but still i cant make them coexist at all.

Thank you for any and all responses

EDITS: changed out machine info screenshot as it did not load properly

## What classifier can recognize differences in two text strings immediately?

I’m playing around with the TextBlob library for python. It has in it a NaiveBayesClassifier as well as a DecisionTreeClassifier. However, they do not work for my purposes. I need to be able to look at differences between strings, preferably in form that lends itself to template-like substitution of the different parts.

So for example, suppose we train with: $$\psi : \ aAb \mapsto 0, \ a b \mapsto 1,$$ Then it should automatically recognize, either, the absence of the $$A$$, or the presence of something else besides the $$A$$:

$$\psi(ac) = 1 \$$

for example, is possible immediately after the two samples. Maybe there should be settings to choose what / how the differences are made.

I’d also like it to be able to create “substitution templates” between the input and output of a mapping. So if $$aAb \mapsto cAd$$ is a mapping, then it knows when it sees $$aBb$$ to map it to $$cBd$$. I think there should be some interesting math involved in this problem, intuitively.

Take a look at this image:

In the language of category theory, it commutes. But it has two mappings from $$aAb$$ so I don’t know how we’d handle that in terms of classification.

$$a, b, c, A,B,C,D$$ are all strings, the capital letters were just for convenience.