Cent OS adding port into iptables - command line SSH

4 August 2013, 10:06 AM

The following can be used to allow connections to a port from any IP. Use the simple line below to accept a port in iptables.

To allow HTTP port 80
iptables -I INPUT -p tcp --dport 80 -j ACCEPT


To allow DNS port 53
iptables -I INPUT -p tcp --dport 53 -j ACCEPT


To add any port just change the number to the required port

Convert NSTimeInterval to NSString - iOS Development

17 September 2012, 4:38 PM

To convert NSTimeInterval to NSString the following code works perfect

NSTimeInterval today = [[NSDate date] timeIntervalSince1970];
NSString *intervalString = [NSString stringWithFormat:@"%f", today];

Find string in NSArray and return index of string - iOS Development

12 September 2012, 3:54 PM

Find a string in an NSArray

NSArray *animals = [NSArray arrayWithObjects:@"Dog", @"Mouse", @"Cat", nil];
NSLog(@"Index: %i", [animals indexOfObject:@"Cat"]);

This would provide the following 
Index: 2

Convert NSString to Int - iPhone Development iOS

4 September 2012, 11:34 PM

Some simple code for converting string to int and int to string

String to Int
NSString *name = @"10";
int value = [name intValue];

Int to String
int value = 100;
NSString *name = [NSString stringWithFormat:@"%i", value];

PHP - Show String as Currency - Comma Separated - number_format()

7 February 2012, 12:57 PM

Working to show currency in a readable format


// 1 million coins is easier to read as 1,000,000
$value = "1000000";

// echo as 1,000,000
echo number_format($value, 0, '.', ',');

// echo as 1,000,000.00
echo number_format($value, 2, '.', ',');

// echo as 1:000:000
echo number_format($value, 0, '.', ':');

 


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Cent OS adding port into iptables - command line SSH
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