小明 caobug

常見網絡連接狀態指示器 (NCSI) 及強制門戶 (Captive Portal) 認證地址

常見網絡連接狀態指示器 (NCSI) 檢測用網絡地址

Windows:
- Edge:
  - http(s)://edge.microsoft.com/captiveportal/generate_204 HTTP連接檢測, 有效值為204
- 10-11:
  - http://www.msftconnecttest.com/connecttest.txt HTTP下載檢測, 有效值為Microsoft Connect Test

set http or socks proxy environment variables

# set http proxy
export http_proxy=http://PROXYHOST:PROXYPORT

# set http proxy with user and password
export http_proxy=http://USERNAME:PASSWORD@PROXYHOST:PROXYPORT

# set http proxy with user and password (with special characters)

Install Tomcat as a service on Linux

Download Tomcat from the Apache website.
Unpack in /opt/apache-tomcat-x.y.z. E.g. /opt/apache-tomcat-8.5.6.
You'll need a terminal and root access.

Create Tomcat user with restricted permissions

Libuv and libev, two I/O libraries with similar names, recently had the privilege to use both libraries to write something. Now let's talk about my own subjective expression of common and different points.

The topic of high-performance network programming has been discussed. Asynchronous, asynchronous, or asynchronous. Whether it is epoll or kqueue, it is always indispensable to the asynchronous topic.

Libuv is asynchronous, and libev is synchronous multiplexing IO multiplexing.

Libev is a simple encapsulation of system I/O reuse. Basically, it solves the problem of different APIs between epoll and kqueuq. Ensure that programs written using livev's API can run on most *nix platforms. However, the disadvantages of libev are also obvious. Because it basically just encapsulates the Event Library, it is inconvenient to use. For example, accept(3) requires manual setnonblocking after connection. EAGAIN, EWOULDBLOCK, and EINTER need to be detected when reading from a socket. This is a

README

Let Tomcat is download and installed under /opt/tomcat. Also, let tomcat be a non-provileged user under which the server will be running.

We assume that we keep server's binaries under /opt/tomcat and we will create a server instance named foo under /var/tomcat/ (carrying its own conf, logs, webapps, work, lib directories). See also https://dzone.com/articles/running-multiple-tomcat.

Create a template service unit file at /etc/systemd/system/[email protected]:

	deb http://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware
	deb http://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware
	deb http://deb.debian.org/debian/ bookworm-backports main contrib non-free non-free-firmware
	deb http://security.debian.org/debian-security/ bookworm-security main contrib non-free non-free-firmware

	#/bin/bash

	if [[ "$EUID" -ne 0 ]]; then
	echo "Permission denied"
	exit 1
	fi

	cp /etc/network/interfaces /etc/network/interfaces.new
	systemctl restart networking.service

	jobject getContext(JNIEnv *env) {
	jclass jAppAppGlobalsClass = env->FindClass("android/app/AppGlobals");

	jmethodID jGetInitialApplication = env->GetStaticMethodID(jAppAppGlobalsClass, "getInitialApplication",
	"()Landroid/app/Application;");

	jobject jApplicationObject = env->CallStaticObjectMethod(jAppAppGlobalsClass, jGetInitialApplication);

	return jApplicationObject;
	}

	set(CMAKE_BUILD_TYPE Debug)
	cmake_minimum_required(VERSION 2.8.12)
	project(libuv1)

	add_definitions("-std=c++11")

	include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
	conan_basic_setup()

	add_executable(server server.cpp)

	#!/bin/bash

	cat > /usr/local/etc/pf-nat.conf << EOF
	nat on en0 from vnic1:network to any -> (en0)
	EOF

	sudo pfctl -d
	sudo sysctl -w net.inet.ip.forwarding=1
	sudo pfctl -f /usr/local/etc/pf-nat.conf -e