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How to determine SSL cert expiration date from a PEM encoded certificate?

... the -noout option to see a helpful message using a single command without extra logic. E.g., openssl x509 -checkend 0 -in file.pem will give the output "Certificate will expire" or "Certificate will not expire" indicating whether the certificate will expire in zero seconds. –...
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How can I do DNS lookups in Python, including referring to /etc/hosts?

... URI that you'd like to get the ip address(es) for :type target: string :param port: which port do you want to do the lookup against? :type port: integer :returns ips: all of the discovered ips for the target :rtype ips: list of strings '''...
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How do you determine the ideal buffer size when using FileInputStream?

...buffer size. If you pick a size that's too small, you'll waste time doing extra I/O operations and extra function calls. If you pick a size that's too big, you'll start seeing a lot of cache misses which will really slow you down. Don't use a buffer bigger than your L2 cache size. ...
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Get the IP address of the remote host

...osted) or self-hosted. The code below shows how this can be done. private string GetClientIp(HttpRequestMessage request) { if (request.Properties.ContainsKey("MS_HttpContext")) { return ((HttpContextWrapper)request.Properties["MS_HttpContext"]).Request.UserHostAddress; } if...
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Get the IP address of the machine

...gt; #include <ifaddrs.h> #include <netinet/in.h> #include <string.h> #include <arpa/inet.h> int main (int argc, const char * argv[]) { struct ifaddrs * ifAddrStruct=NULL; struct ifaddrs * ifa=NULL; void * tmpAddrPtr=NULL; getifaddrs(&ifAddrStruct); ...
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Why am I getting “Cannot Connect to Server - A network-related or instance-specific error”?

...the actual folder path) and port (default is 1433) Check your connection string as well From FIX : ERROR : Could not open a connection to SQL Server: Check if your SQL server services is up and running properly: Go to All Programs > Microsoft SQL Server 2008 > Configuration...
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How can I connect to Android with ADB over TCP? [closed]

... "adb tcpip port" literally? that just returns the string "error: device not found" -- is there a typo? Or should I replace something here? – BrainSlugs83 Aug 8 '13 at 17:46 ...
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TCP: can two different sockets share a port?

...protocols as well (for example, on unix sockets, a "port" is essentially a string). The main problem is the following: if an incoming packet arrives, the kernel can identify its socket by its destination port number. It is a most common way, but it is not the only possibility: Sockets can be iden...
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Best way to implement request throttling in ASP.NET MVC?

...and client IP, e.g. "Name-192.168.0.1" /// </remarks> public string Name { get; set; } /// <summary> /// The number of seconds clients must wait before executing this decorated route again. /// </summary> public int Seconds { get; set; } /// <summar...
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UnicodeEncodeError: 'latin-1' codec can't encode character

...aracter to be used. You should also ideally tell MySQL you are using UTF-8 strings (by setting the database connection and the collation on string columns), so it can get case-insensitive comparison and sorting right. share ...