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Linux command to translate DomainName to IP [closed]
Is there any Linux command to translate domain name to IP?
2 Answers
2
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Logging Clientside JavaScript Errors on Server [closed]
...u can also encrypt a token that includes the user's ID, IP, a small random string (to foil known-plaintext attacks if your encryption algorithm is fast but weak), and a timestamp and include that as a JS variable in the page. This can then be submitted with the error report and checked before allow...
java.net.ConnectException: Connection refused
...
This exception means that there is no service listening on the IP/port you are trying to connect to:
You are trying to connect to the wrong IP/Host or port.
You have not started your server.
Your server is not listening for connections.
On Windows servers, the listen backlog queue is f...
Java JDBC - How to connect to Oracle using Service Name instead of SID
...port java.sql.*;
public class MyDBConnect {
public static void main(String[] args) throws SQLException {
try {
String dbURL = "jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=whatEverYourHostNameIs)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=yourSe...
#pragma pack effect
...ing a DWORD at an address which isn't divisible by 4 requires at least one extra CPU cycle on a 32 bit processor. So, if you have e.g. three char members char a, b, c;, they actually tend to take 6 or 12 bytes of storage.
#pragma allows you to override this to achieve more efficient space usage, a...
XAMPP, Apache - Error: Apache shutdown unexpectedly
...and solved it by making sure that each directory specified in /apache/conf/extras/httpd-bhosts.conf were actual paths.
– Matthew
Mar 20 '15 at 23:43
8
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Checking network connection
...or as err:
return False
Currently, 216.58.192.142 is one of the IP addresses for google.com. Change http://216.58.192.142 to whatever site can be expected to respond quickly.
This fixed IP will not map to google.com forever. So this code is
not robust -- it will need constant maintenanc...
Regexp Java for password validation
...[@#$%^&+=])(?=\S+$).{8,}$
Explanation:
^ # start-of-string
(?=.*[0-9]) # a digit must occur at least once
(?=.*[a-z]) # a lower case letter must occur at least once
(?=.*[A-Z]) # an upper case letter must occur at least once
(?=.*[@#$%^&+=]) # a special ...
Possible reasons for timeout when trying to access EC2 instance
...he same problem, and the solution ended up being adding my
local machine's IP to the list of inbound rules in the active security
group. In the inbound dialog below, enter 22 in the port range, your local IP/32 in the source field, and leave 'custom tcp rule' in the dropdown.
...
What do people find difficult about C pointers? [closed]
...started working with them, the biggest problem I had was the syntax.
int* ip;
int * ip;
int *ip;
are all the same.
but:
int* ip1, ip2; //second one isn't a pointer!
int *ip1, *ip2;
Why? because the "pointer" part of the declaration belongs to the variable, and not the type.
And then derefe...