你知道 Mac 本身也有內建防火牆嗎？
我指的不是 System Preferences 裡面有的防火牆（那個屬於 Application Firewall 指定程式進出的），而是可以像 linux iptables 可以設定規則的防火牆。
它叫做 Packet filter 簡稱 PF，因為 Mac OSX 屬於 BSD 系列的系統
自從 10.7 (Lion) 之後就有內建 PF（在這之前是 IPFW），只是預設是關閉的。
官方文件寫的非常少，大部分要參考 FreeBSD 的文件或者 OpenBSD 的文件，
大部分這二者看到的文件跟語法大多都支援。
Note
to active Office without crack, just follow https://github.com/WindowsAddict/IDM-Activation-Script,
you wiil only need to run
irm https://massgrave.dev/ias | iex
Here are the steps to installing and setting up GDB on Mac OS Sierra/High Sierra.
Run brew install gdb.
On starting gdb, you will get the following error:
Unable to find Mach task port for process-id 2133: (os/kern) failure (0x5).
(please check gdb is codesigned - see taskgated(8))To fix this error, follow the following steps:
Preconditions:
- POSIX or Windows system
- Install Docker
- A GitHub repo that already builds on Travis
Postcondition:
| import "hash" | |
| private rule Macho | |
| { | |
| meta: | |
| description = "private rule to match Mach-O binaries" | |
| condition: | |
| uint32(0) == 0xfeedface or uint32(0) == 0xcefaedfe or uint32(0) == 0xfeedfacf or uint32(0) == 0xcffaedfe or uint32(0) == 0xcafebabe or uint32(0) == 0xbebafeca | |
| } |
| As of iOS 11/macOS High Sierra, and only including ones in Foundation and CoreFoundation | |
| Strings: | |
| _NSCFString - a CFStringRef or CFMutableStringRef. This is the most common type of string object currently. | |
| - May have 8 bit (ASCII) or 16 bit (UTF-16) backing store | |
| _NSCFConstantString - a compile time constant CFStringRef, like you'd get with @"foo" | |
| - May also be generated by dynamic string creation if matches a string in a pre-baked table of common strings called the StringROM | |
| NSBigMutableString - an NSString backed by a CFStorage (https://github.com/opensource-apple/CF/blob/master/CFStorage.h) for faster handling of very large strings | |
| NSCheapMutableString - a very limited NSMutableString that allows for zero-copy initialization. Used in NSFileManager for temporarily wrapping stack buffers. |
| <?xml version="1.0" encoding="UTF-8"?> | |
| <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> | |
| <plist version="1.0"> | |
| <dict> | |
| <!-- Launch Daemon do not always have access to all the path variables | |
| As a results, scripts will sometimes fail if the you are using path variables inside them | |
| To enable the script to have access to all path variables, open up a terminal and type in --> | |
| <!-- echo $PATH --> | |
| <!-- You can opt to filter out some of the path variables which are not required by script--> | |
| <key>EnvironmentVariables</key> |
| class RSVerticallyCenteredTextFieldCell: NSTextFieldCell { | |
| var mIsEditingOrSelecting:Bool = false | |
| override func drawingRect(forBounds theRect: NSRect) -> NSRect { | |
| //Get the parent's idea of where we should draw | |
| var newRect:NSRect = super.drawingRect(forBounds: theRect) | |
| // When the text field is being edited or selected, we have to turn off the magic because it screws up | |
| // the configuration of the field editor. We sneak around this by intercepting selectWithFrame and editWithFrame and sneaking a | |
| // reduced, centered rect in at the last minute. |
| class Tuple(tuple): | |
| def __getattr__(self, name): | |
| def _int(val): | |
| try: | |
| return int(val) | |
| except ValueError: | |
| return False | |
| if not name.startswith('_') or not _int(name[1:]): | |
| raise AttributeError("'tuple' object has no attribute '%s'" % name) |
| # first install pygmentize to the mac OS X or macOS system with the built-in python | |
| sudo easy_install Pygments | |
| # then add alias to your ~/.bash_profile or ~/.bashrc or ~/.zshrc etc. | |
| alias pcat='pygmentize -f terminal256 -O style=native -g' |