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How can i use iptables on centos 7? [closed]
...am trying to open 80 port for httpd service, but something wrong with my iptables service ... what's wrong with it? What am I doing wrong?
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AES Encryption for an NSString on the iPhone
Can anybody point me in the right direction to be able to encrypt a string, returning another string with the encrypted data? (I've been trying with AES256 encryption.) I want to write a method which takes two NSString instances, one being the message to encrypt and the other being a 'passcode' to e...
What is the best way to test for an empty string in Go?
Which method is best (more idomatic) for testing non-empty strings (in Go)?
10 Answers
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Command line progress bar in Java
...he thing to do is to print your progress bar, for example, by printing the string
"|======== |\r"
On the next tick of the progress bar, overwrite the same line with a longer bar. (because we are using \r, we stay on the same line) For example:
"|========= |\r"
What you have to re...
Should I call Close() or Dispose() for stream objects?
...Microsoft.Usage : Object 'f' can be disposed more than once in method 'Foo(string)'. To avoid generating a System.ObjectDisposedException you should not call Dispose more than one time on an object.: Lines: 41" So while the current implementation is fine with calling Close and Dispose, according to ...
Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
...S server 8.8.8.8 in order to turn the text address of 'google.com' into an IP address. Ironically, 8.8.8.8 is Google's public DNS server. If nslookup fails, public DNS servers like 8.8.8.8 might be blocked by your company (which I assume is for security reasons).
You'd think that adding your compan...
Configure Flask dev server to be visible across the network
...annot access it from other machines on the network (with http://[dev-host-ip]:5000 ). With Rails in dev mode, for example, it works fine. I couldn't find any docs regarding the Flask dev server configuration. Any idea what should be configured to enable this?
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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 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...
Omitting all xsi and xsd namespaces when serializing an object in .NET?
...overriding the namespace for each element, and replacing it with the empty string, you've stripped the namespaces from the output.
public class NoNamespaceXmlWriter : XmlTextWriter
{
//Provide as many contructors as you need
public NoNamespaceXmlWriter(System.IO.TextWriter output)
...