Tag: work

linux – Rust Nickel Server does not work during deployment

I created a simple backend server using the Rust "Nickel" framework by following the guide here: https://nickel-org.github.io/getting-started.html

i can run cargo run locally and has reached the local endpoint http://127.0.0.1:6767 via factor to get this answer:

{
    message: "Hello! Sincerely, Jimbob's Rusty Nickel"
}

It’s great, and I’d like to deploy it live. I am using a micro aws ec2 instance with ubuntu 18.04 LTS. After installing the load and running the application with cargo run I get the usual successful start-up output "waiting for requests":

Listening on http://127.0.0.1:6767
Ctrl-C to shutdown server

I have my server ports open with these settings:

incoming:

80  tcp 0.0.0.0/0, ::/0      
22  tcp 0.0.0.0/0        
3000    tcp 0.0.0.0/0    
443 tcp 0.0.0.0/0, ::/0      
0-65535 tcp 0.0.0.0/0       
6767    tcp 0.0.0.0/0

outbound:

All All  0.0.0.0/0       
6767    tcp 0.0.0.0/0

When I try to call the live endpoint using ec2 public DNS (IPv4) with port 6767 or public IPv4 with port 6767, i get this error response:

Could not get any response
There was an error connecting to http://3.83.65.51:6767.
Why this might have happened:
The server couldn't send a response:
Ensure that the backend is working properly
Self-signed SSL certificates are being blocked:
Fix this by turning off 'SSL certificate verification' in Settings > General
Proxy configured incorrectly
Ensure that proxy is configured correctly in Settings > Proxy
Request timeout:
Change request timeout in Settings > General

sql – subquery does not work with SQLExecute

I want to select, say, rows 6 through 12 of a sqlite database. So I tried a subquery, but it doesn't work:

SQLExecute(conn,"SELECT * FROM (SELECT row_number() OVER (ORDER BY id) AS RowNum, * FROM chains) WHERE (6 <= RowNum AND RowNum <= 12);"

and generates

JDBC::error: (SQLITE_ERROR) SQL error or missing database (near "(": syntax error)

but the same SQL code works fine since sqlite3 itself.

Each subquery variation I tried gives the same error. The error message gives the impression that SQLite is complaining, rather than JDBC or Mathematica, but I don't see how it can be because it works well if I run sqlite3 from the line of command. The non-subquery selects the job, so there is nothing wrong with the connection.

I guess I don't understand how to use SQLExecute.

How to extract a fixed range of rows from a SQLite database?

j & # 39; uses 12.0.0 for Mac OS X x86 (64-bit) (April 7, 2019) and sqlite3 version 3.27.2.

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esp32 – NodeMCU firmware does not work after firmware download

I am trying to download the NodeMCU firmware, but after downloading 

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
flash read err, 1000
Falling back to built-in command interpreter.
OK

The NodeMCU documentation, Flashing the firmware, describes the general format of commands. The command I used was:

sudo espressif/esptool/repo/esptool.py --port /dev/ttyS8 write_flash -fm dio 0x00000 nodemcu/repo/bin/0x00000.bin

Note, I am running it in the Windows WSL Debian distribution, so ttyS8.

My guess why it doesn't work is due to the message seen in the console. After a little research, I found information on the letscontrolit / ESPEasy forum, found here by voducng. His response was as follows:

You need to flash the bootloader. So under Windows10/cmd:

    I do erase: flasherase.cmd:
    esptool.exe --chip esp32 --port COM11 --baud 256000 --before default_reset --after hard_reset erase_flash

    I do use flash the boot loader: flashbootloader.cmd:
    esptool.exe --chip esp32 --port COM11 --baud 256000 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0x8000 partitions2.bin 0xe000 boot_app0.bin 0x1000 bootloader.bin

    and flashfirmware.cmd:
    esptool.exe --chip esp32 --port COM11 --baud 256000 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0x10000 firmware.bin

I can issue commands 1 and 3, but I cannot execute command # 2 because I do not know where the partitions2.bin file is located. There are a few bootloader files I found in the esptool repository, but I don't know which one to use.

Here is the list after searching for these files

user@machine:/mnt/c/MyFiles/Projects/espressif$ find . -iname *partition*.bin
./esp-idf/components/nvs_flash/test/partition_encrypted.bin
./esp-idf/components/wear_levelling/test/test_partition_v1.bin
./esptool/repo/test/images/partitions_singleapp.bin
user@machine:/mnt/c/MyFiles/Projects/espressif$ find . -iname *boot*.bin
./esptool/repo/test/images/bootloader_esp32.bin
./esptool/repo/test/images/bootloader_esp32s2beta.bin
./esptool/repo/test/images/esp8266_sdk/boot_v1.4(b1).bin
./esptool/repo/test/secure_images/bootloader-encrypted-conf0.bin
./esptool/repo/test/secure_images/bootloader-encrypted-conf3.bin
./esptool/repo/test/secure_images/bootloader-encrypted-conf9.bin
./esptool/repo/test/secure_images/bootloader-encrypted-confc.bin
./esptool/repo/test/secure_images/bootloader-encrypted.bin
./esptool/repo/test/secure_images/bootloader.bin
./esptool/repo/test/secure_images/bootloader_digested.bin
./esptool/repo/test/secure_images/bootloader_signed.bin

Anyone see what I am doing wrong?

dnd 5e – How dimensional shackles work in an antimagic field

I have several questions regarding the operation of dimensional shackles in an antimagic field (here are the relevant parts of their descriptions):

Dimensional shackles:

(…) In addition to serving as worldly handcuffs, shackles prevent a creature bound by them from using any method of extra-dimensional movement, including teleportation or travel to another plane of existence. They do not prevent the creature from passing through an interdimensional portal.

You and any creature you designate when using the chains can use an action to remove them. Once every 30 days, the linked creature can take a DC 30 (Athletics) Strength test. If successful, the creature frees itself and destroys the chains.

the antimagic field to spell:

(…) The properties and powers of magic objects are removed in the sphere. For example, a long sword, +1 in the sphere works like a non-magic long sword (…)

  • Do dimensional shackles just become worldly handcuffs in the field?
  • Will dimensional shackles remain on the creature tied at all; Are they held together by magical means and do they fall into an antimagic field?
  • Will they still have a DC 30 force test to break, or will they be broken by a 20, which is necessary to break worldly handcuffs?
  • Can selected creatures simply delete them with an action?
  • Unlike handcuffs, there is no DC to use thieves' tools; does it change when entering antimagic field? (in fact, in the images I've seen, the dimensional shackles don't seem to have a lock or anything holding them together by the way)

Not having a DC for thief tools is my premise for knowing if the locking mechanism is magic in the first place. It can go both ways, however, magic may prevent the tools from choosing the lock.

How does this "false transaction generator" work?

Someone sent me a bogus bitcoin sender. He told me he was using P2SH to generate scripts. It is a C ++ program from the QT console and it used openssl. But i checked the code i saw nothing to send a transaction. So I tried to build software but there are errors.
Who can tell me how this software works?
THANK YOU!!!!!!!
Scouce link: https: //drive.google.com/file/d/1wH6gk0HbYOibcJJzUcSi_mLkjDeSQt5G/view? Usp = sharing

-the title does not work when the non-alphabetic characters from Google

In some cases, there is no Google search result. For example, when you use Japanese or non-alphabetic characters in -intitle operator there may be no results.

japan -intitle:japan site:ja.wikipedia.org
# => A lots of result 
日本 -intitle:日本 site:ja.wikipedia.org
# => No result 
"日本" -intitle:"日本" site:ja.wikipedia.org 
# => No result

I have no idea that this is a google side bug or correct behavior. An idea? Thank you.

pnp – SPFx command bar does not work after deployment

I'm working on the SPFx command bar and everything works as expected when I do "gulp serve" and run it in localhost. But when I tried to deploy the same in AppCatalog and installed the same on my site, strangely, it didn't work.

I tried to create a new default solution and I encountered the same problem after deploying to the site.

Steps to reproduce the problem:

  • Run & # 39; yo @ microsoft / SharePoint & # 39; and select the default option to create an application customizer for the command bar.
  • Create a package with (gulp build, gulp bundle –ship, gulp package-solution –ship)
  • Download the package in the tenant application catalog
  • Install the SPFx solution on the site.
  • Go to the library and select the document
  • The command bar must be visible (in my case, I don't see it)

I would really appreciate it if someone could help me here.

Here are the versions I use

  • Node: v10.16.1
  • NPM: 6.9.0
  • SPFx: 1.8.2

css – For what use cases does the overflow property work?

Is it enough that the child element is outside (regardless of how it is outside the box) of the parent element for the overflow property to have an effect?

If I occupy another property that moves the box and takes it out of its father, or if I use a property that causes the text to be outside, will the overflow have does it have any effect?