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How to create a bash script to check the SSH connection?
...wnhost -PN -p ssh | grep open`
$ echo $a
22/tcp open ssh
$ echo $b
(empty string)
But you'll have to grep the message (nmap does not use the return-value to show if a port was filtered, closed or open).
EDIT2:
If you're interested in the actual state of the ssh-port, you can substitute grep ope...
How to create an array from a CSV file using PHP and the fgetcsv function
...
I have created a function which will convert a csv string to an array. The function knows how to escape special characters, and it works with or without enclosure chars.
$dataArray = csvstring_to_array( file_get_contents('Address.csv'));
I tried it with your csv sample and...
Why does appending “” to a String save memory?
I used a variable with a lot of data in it, say String data .
I wanted to use a small part of this string in the following way:
...
Returning an array using C
...nd of the sizeof or unary & operators, or if the array expression is a string literal being used to initialize another array in a declaration.
Among other things, this means that you cannot pass an array expression to a function and have it received as an array type; the function actually rec...
Using openssl to get the certificate from a server
...
While I agree with Ari's answer (and upvoted it :), I needed to do an extra step to get it to work with Java on Windows (where it needed to be deployed):
openssl s_client -showcerts -connect www.example.com:443 < /dev/null | openssl x509 -outform DER > derp.der
Before adding the openss...
hash function for string
I'm working on hash table in C language and I'm testing hash function for string.
9 Answers
...
JSONDecodeError: Expecting value: line 1 column 1 (char 0)
...or is due to :
non-JSON conforming quoting
XML/HTML output (that is, a string starting with <), or
incompatible character encoding
Ultimately the error tells you that at the very first position the string already doesn't conform to JSON.
As such, if parsing fails despite having a data-bo...
How do I uniquely identify computers visiting my web site?
...session, your database schema will look like this:
sesssion:
sessionID: string
// Global session data goes here
computers: [{
BrowserID: string
ComputerID: string
FingerprintID: string
userID: string
authToken: string
ipAddresses: ["203.525....", "203.525...", ....
FileNotFoundException while getting the InputStream object from HttpURLConnection
...res a record to the database and then sends back a response in form of xml string. The app is hosted on apache-tomcat locally.
...
How do I specify a pointer to an overloaded function?
...e functions):
void f_c(char i)
{
return f(i);
}
void scan(const std::string& s)
{
std::for_each(s.begin(), s.end(), f_c);
}
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