Engineering and technology notes

WebSockets on nginx

location /api/websocket {
proxy_pass ws://192.168.56.101:8123/api/websocket;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection “upgrade”;
}

location / {
proxy_pass http://192.168.56.101:8123/;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection “upgrade”;
}

Source: ServerAdmin jovan@ris.mk ServerName smkocani.duckdns.org DocumentRoot /var/www/html # Available loglevels: trace8, …, trace1, debug, info, notice, warn, # error, crit, alert, emerg. # It is also possible to configure the loglevel for

Sim7600 power-on

This is the code for the power-on of sim7600e:

/**************************Power on Sim7x00**************************/
void Sim7x00::PowerOn(int PowerKey = powerkey){
   uint8_t answer = 0;

  Serial.begin(9600);

  // checks if the module is started
  answer = sendATcommand("AT", "OK", 2000);
  if (answer == 0)
  {
    Serial.print("Starting up...\n");
    
    pinMode(PowerKey, OUTPUT);
    // power on pulse
    digitalWrite(PowerKey, HIGH);
    delay(500);
    digitalWrite(PowerKey, LOW);
    
    // waits for an answer from the module
    while (answer == 0) {     // Send AT every two seconds and wait for the answer
      answer = sendATcommand("AT", "OK", 2000);
	  delay(1000);
    }

Source: Sim7600 and arduino won’t connect – Using Arduino / Project Guidance – Arduino Forum

upgrade – ESM 401 Unauthorized error on Ubuntu 18.04

deb http://archive.ubuntu.com/ubuntu/ bionic-backports main universe multiverse restricted
deb http://archive.ubuntu.com/ubuntu/ bionic main universe multiverse restricted
deb http://archive.ubuntu.com/ubuntu/ bionic-updates main universe multiverse restricted
deb http://security.ubuntu.com/ubuntu/ bionic-security main universe multiverse restricted

Source: upgrade – ESM 401 Unauthorized error on Ubuntu 16.04 – Ask Ubuntu

Add AD Account over ldap

**LDAP so Active Directory**
### Eve eden link za pomos: http://pig.made-it.com/pig-adusers.html
### Za password treba so attribute $”unicodePwd”, taka da pazi 😀
### Prvo e potrebno da se enkodira Passwordot so $”UTF16LE” od $”UTF16″ pa so $”base64″

 

## Za enkripcija na password se koristi ovaa komanda
echo -n “\”Password\”” | iconv -f UTF8 -t UTF16LE | base64 -w 0

 

## Posle ti treba ovoj ldif fajl
#####################################################
dn: CN=filip,OU=EhealthUsers,DC=ehealthdev,DC=local
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: user
cn: filip
sn: filip
telephoneNumber: 1234563213123
sAMAccountName: filip
userPrincipalName: filip@ehealthdev.local

 

dn: CN=filip,OU=EhealthUsers,DC=ehealthdev,DC=local
changetype: modify
replace: unicodePwd
unicodePwd::IgBDAG8AcwBoAHkAJgA5ADYAOQAiAA==

 

dn: CN=filip,OU=EhealthUsers,DC=ehealthdev,DC=local
changetype: modify
replace: userAccountControl
userAccountControl: 512
#####################################################

 

## Za dodavanje korisnik vo AD so LDAP Mora da ti bide Secure konekcijata za da moze unicodePwd (Passwordot) da se stavi
ldapadd -H ldaps://192.168.56.104:636 -x -D “CN=Administrator,CN=Users,DC=ehealthdev,DC=local” -W -f proba.ldif

 

## Za prelistuvanje na Domain Component i proverka dali akauntot e OK
ldapsearch -x -D “CN=filip,OU=EhealthUsers,DC=ehealthdev,DC=local” -W -H ldap://192.168.56.104 -b “dc=ehealthdev,dc=local”