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Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…
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The week part is nice but overall the function should be more flexible ($full should be a string input to filter the output as needed). e.g. time_elapsed_string($datetime, $format = "ymw"). P.S. Flat version: stackoverflow.com/a/5010169/318765
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Is there a way to check if int is legal enum in C#?
...ple
{
public static void Main()
{
object value;
// Call IsDefined with underlying integral value of member.
value = 1;
Console.WriteLine("{0}: {1}", value, Enum.IsDefined(typeof(PetType), value));
// Call IsDefined with invalid underlying integral value.
...
How are software license keys generated?
... honest, this strikes me as (in)Security Through Obscurity , although I really have no idea how license keys are generated. What is a good (secure) example of license key generation? What cryptographic primitive (if any) are they using? Is it a message digest? If so, what data would they be hashing...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...g，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...g，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...g，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...g，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...g，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...g，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...g，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;...