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Django's SuspiciousOperation Invalid HTTP_HOST header
... a more likely explanation is web crawlers (robots) simply crawling public IP addresses on port 80 - in which case you would want to allow them.
– markmnl
May 16 '14 at 4:12
16
...
Test if string is a number in Ruby on Rails
...il 1154461.1 (±5.5%) i/s - 5788976 in 5.035311s
require 'benchmark/ips'
int = '220000'
bad_int = '22.to.2'
Benchmark.ips do |x|
x.report('cast') do
Integer(int) rescue false
end
x.report('cast fail') do
Integer(bad_int) rescue false
end
x.report('to_s') do
int.to_i....
How do you convert a byte array to a hexadecimal string, and vice versa?
... }
return result;
}
static uint[] _Lookup32 = Enumerable.Range(0, 255).Select(i => {
string s = i.ToString("X2");
return ((uint)s[0]) + ((uint)s[1] << 16);
}).ToArray();
static string ByteArrayToHexViaLookupPerByte(byte[] bytes) {
var result = new char[bytes.Length * 2];
...
What is /dev/null 2>&1?
...
& indicates a file descriptor. There are usually 3 file descriptors - standard input, output, and error.
– Testing123
Sep 15 '17 at 17:22
...
When should I use malloc in C and when don't I?
...y, but of course you don't know the file's size in advance, since the user selects the file on the spot, at runtime. So basically you need malloc when you don't know the size of the data you're working with in advance. At least that's one of the main reasons for using malloc. In your example with a ...
Java regex email
... I think he downgraded it because one has to manually escape special characters like " before compile. Unless there will be syntax error.
– Isuru Madusanka
Mar 8 '13 at 19:37
...
Has anyone ever got a remote JMX JConsole to work?
...a SSH login. All Communication will be tunneled over the SSH connection.
TIP: This Solution works no matter if there is a firewall or not.
Disadvantage: Everytime you restart your java process, you will need to do all steps from 4 - 9 again.
1. You need the putty-suite for your Windows machin...
Unable to login to SQL Server + SQL Server Authentication + Error: 18456
...tion.
You can access this by
Right click on instance (IE SQLServer2008)
Select "Properties"
Select "Security" option
Change "Server authentication" to "SQL Server and Windows Authentication mode"
Restart the SQLServer service
Right click on instance
Click "Restart"
...
Why must a lambda expression be cast when supplied as a plain Delegate parameter
...keRequired code pattern are very helpful.
– Erik Philips
Jan 9 '13 at 1:12
...
write a shell script to ssh to a remote machine and execute commands
...
There are multiple remote linux machines, and I need to write a shell script which will execute the same set of commands in each machine. (Including some sudo operations). How can this be done using shell scripting?
You can do this with ...