• Kubernetes version disclosure.
• Access to Kubernetes API
• Insecure (HTTP) access to Kubernetes API
• Specific Access to Kubernetes API
• Possible Arp Spoof
• Certificate Includes Email Address

There is a lot of hidden treasure lying within university pages scattered across the internet. This list is an attempt to bring to light those awesome courses which make their high-quality material i.e. assignments, lectures, notes, readings & examinations available online for free.

postgres if locked.

  SELECT 
      pg_terminate_backend(pid) 
  FROM 
      pg_stat_activity 
  WHERE 
      -- don't kill my own connection!
      pid <> pg_backend_pid()

-- don't kill the connections to other databases

HTTP Status Codes

Status codes are three-digit numbers. A 200 code is the most common and represents a successful response. The first digit defines what is known as the class of the status code. If the code starts with a 2, as in 200, that represents a successful response to the request.

HTTP returns five classes of codes.

• [1] Informational Class - 1xx ,101 Switching protocol.
• [2] Success Class - 2xx, 200 Success.
• [3] Redirection Class - 3xx, 302 Redirect.
• [4] Client errors - 4xx, 404 Not found.

$ git branch
$ git checkout master
$ git pull origin master
$ git checkout -b my-new-feature-branch
$ git add . or git add -u or git add -all
$ git commit -m "a commit message in the present tense"
$ git pull origin my-new-feature-branch -> if pending changes on server
$ git push origin my-new-feature-branch -> for pull request change branch to master

To Check data type of a variable,mostly used for debuging purposes

$ repr(variable) or type(variable) 

And if the variable is dict type string then

$ import ast 
$ ast.literal_eval(variable)

Example