摘要: 现在公网ip资源越来越珍贵,所以多域名监听的应用非常广泛!所谓多域名监听就是用一个端口,比如80或者443,监听多个入口域名!最常见的方法如下: server { listen 443 ssl; server_name xxx.xxx.cn; ssl ...
现在公网ip资源越来越珍贵,所以多域名监听的应用非常广泛!所谓多域名监听就是用一个端口,比如80或者443,监听多个入口域名!最常见的方法如下:server {
listen 443 ssl;
server_name xxx.xxx.cn;
ssl_certificate ssl/server.pem;
ssl_certificate_key ssl/server.key;
......
}
今天我们来看看小程序开发过程中的常见问题:
1.如何在nginx同一端口同时监听多个域名?
在启用新的域名的时候,只需要另启一个server配置文件,丢在vhosts目录下即可,不会报端口被占,这个维护nginx的大部分人都知道。但是,这里有个地方要注意:不能跨nginx实例。很多同事习惯在同一虚机或者云主机下安装多个nginx实例,如果你在实例1里面用了某个端口,再在实例2里面用这个端口绑不同域名,那对不起了,报错妥妥的出来:
nginx: [emerg] bind() to 0.0.0.0:xxxx failed (98: Address already in use)
nginx: [emerg] still could not bind()
个人建议:不在同一台虚机或者云主机下安装多个nginx实例。
2.http和https如何同时监听?
这种需求还是挺多的,有时候我们的证书需要安装在A10或者F5这类硬负载均衡上,此时,DMZ区的服务器不需要安装证书,只需要监听http端口即可。但与此同时,内网dns直接将A地址指到了服务器,此时又需要在服务器上安装证书。这种场景,就需要服务器同时对http和https端口进行监听,监听https口是为了解析内网https域名,监听http口是为了反向代理从DMZ区过来的http请求。如此,可实现内外网https域名统一。
最常见的配置如下
server {
listen 8080;
listen 443 ssl;
server_name xxx.xxx.cn;;
ssl_certificate ssl/server.pem;
ssl_certificate_key ssl/server.key;
......
}
3.中文转码的MD5加密的常见方法
var rotateLeft = function(lValue, iShiftBits) { return(lValue iShiftBits) | (lValue (32 - iShiftBits)); var addUnsigned = function(lX, lY) { var lX4, lY4, lX8, lY8, lResult; lX8 = (lX 0x80000000); lY8 = (lY 0x80000000); lX4 = (lX 0x40000000); lY4 = (lY 0x40000000); lResult = (lX 0x3FFFFFFF) + (lY 0x3FFFFFFF); if(lX4 lY4) return(lResult ^ 0x80000000 ^ lX8 ^ lY8); if(lX4 | lY4) { if(lResult 0x40000000) return(lResult ^ 0xC0000000 ^ lX8 ^ lY8); else return(lResult ^ 0x40000000 ^ lX8 ^ lY8); } else { return(lResult ^ lX8 ^ lY8); var F = function(x, y, z) { return(x y) | ((~x) z); var G = function(x, y, z) { return(x z) | (y (~z)); var H = function(x, y, z) { return(x ^ y ^ z); var I = function(x, y, z) { return(y ^ (x | (~z))); var FF = function(a, b, c, d, x, s, ac) { a = addUnsigned(a, addUnsigned(addUnsigned(F(b, c, d), x), ac)); return addUnsigned(rotateLeft(a, s), b); var GG = function(a, b, c, d, x, s, ac) { a = addUnsigned(a, addUnsigned(addUnsigned(G(b, c, d), x), ac)); return addUnsigned(rotateLeft(a, s), b); var HH = function(a, b, c, d, x, s, ac) { a = addUnsigned(a, addUnsigned(addUnsigned(H(b, c, d), x), ac)); return addUnsigned(rotateLeft(a, s), b); var II = function(a, b, c, d, x, s, ac) { a = addUnsigned(a, addUnsigned(addUnsigned(I(b, c, d), x), ac)); return addUnsigned(rotateLeft(a, s), b); var convertToWordArray = function(string) { var lWordCount; var lMessageLength = string.length; var lNumberOfWordsTempOne = lMessageLength + 8; var lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % 64)) / 64; var lNumberOfWords = (lNumberOfWordsTempTwo + 1) * 16; var lWordArray = Array(lNumberOfWords - 1); var lBytePosition = 0; var lByteCount = 0; while(lByteCount lMessageLength) { lWordCount = (lByteCount - (lByteCount % 4)) / 4; lBytePosition = (lByteCount % 4) * 8; lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) lBytePosition)); lByteCount++; lWordCount = (lByteCount - (lByteCount % 4)) / 4; lBytePosition = (lByteCount % 4) * 8; lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 lBytePosition); lWordArray[lNumberOfWords - 2] = lMessageLength 3; lWordArray[lNumberOfWords - 1] = lMessageLength return lWordArray; var wordToHex = function(lValue) { var WordToHexValue = , WordToHexValueTemp = , lByte, lCount; for(lCount = 0; lCount lCount++) { lByte = (lValue (lCount * 8)) 255; WordToHexValueTemp = 0 + lByte.toString(16); WordToHexValue = WordToHexValue + WordToHexValueTemp.substr(WordToHexValueTemp.length - 2, 2); return WordToHexValue; var uTF8Encode = function(string) { string = string.replace(/\x0d\x0a/g, \x0a var output = for(var n = 0; n string.length; n++) { var c = string.charCodeAt(n); if(c 128) { output += String.fromCharCode(c); } else if((c 127) (c 2048)) { output += String.fromCharCode((c 6) | 192); output += String.fromCharCode((c 63) | 128); } else { output += String.fromCharCode((c 12) | 224); output += String.fromCharCode(((c 6) 63) | 128); output += String.fromCharCode((c 63) | 128); return output; function md5(string) { var x = Array(); var k, AA, BB, CC, DD, a, b, c, d; var S11 = 7, S12 = 12, S13 = 17, S14 = 22; var S21 = 5, S22 = 9, S23 = 14, S24 = 20; var S31 = 4, S32 = 11, S33 = 16, S34 = 23; var S41 = 6, S42 = 10, S43 = 15, S44 = 21; string = uTF8Encode(string); x = convertToWordArray(string); a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476; for(k = 0; k x.length; k += 16) { AA = a; BB = b; CC = c; DD = d; a = FF(a, b, c, d, x[k + 0], S11, 0xD76AA478); d = FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756); c = FF(c, d, a, b, x[k + 2], S13, 0x242070DB); b = FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE); a = FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF); d = FF(d, a, b, c, x[k + 5], S12, 0x4787C62A); c = FF(c, d, a, b, x[k + 6], S13, 0xA8304613); b = FF(b, c, d, a, x[k + 7], S14, 0xFD469501); a = FF(a, b, c, d, x[k + 8], S11, 0x698098D8); d = FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF); c = FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1); b = FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE); a = FF(a, b, c, d, x[k + 12], S11, 0x6B901122); d = FF(d, a, b, c, x[k + 13], S12, 0xFD987193); c = FF(c, d, a, b, x[k + 14], S13, 0xA679438E); b = FF(b, c, d, a, x[k + 15], S14, 0x49B40821); a = GG(a, b, c, d, x[k + 1], S21, 0xF61E2562); d = GG(d, a, b, c, x[k + 6], S22, 0xC040B340); c = GG(c, d, a, b, x[k + 11], S23, 0x265E5A51); b = GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA); a = GG(a, b, c, d, x[k + 5], S21, 0xD62F105D); d = GG(d, a, b, c, x[k + 10], S22, 0x2441453); c = GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681); b = GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8); a = GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6); d = GG(d, a, b, c, x[k + 14], S22, 0xC33707D6); c = GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87); b = GG(b, c, d, a, x[k + 8], S24, 0x455A14ED); a = GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905); d = GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8); c = GG(c, d, a, b, x[k + 7], S23, 0x676F02D9); b = GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A); a = HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942); d = HH(d, a, b, c, x[k + 8], S32, 0x8771F681); c = HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122); b = HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C); a = HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44); d = HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9); c = HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60); b = HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70); a = HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6); d = HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA); c = HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085); b = HH(b, c, d, a, x[k + 6], S34, 0x4881D05); a = HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039); d = HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5); c = HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8); b = HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665); a = II(a, b, c, d, x[k + 0], S41, 0xF4292244); d = II(d, a, b, c, x[k + 7], S42, 0x432AFF97); c = II(c, d, a, b, x[k + 14], S43, 0xAB9423A7); b = II(b, c, d, a, x[k + 5], S44, 0xFC93A039); a = II(a, b, c, d, x[k + 12], S41, 0x655B59C3); d = II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92); c = II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D); b = II(b, c, d, a, x[k + 1], S44, 0x85845DD1); a = II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F); d = II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0); c = II(c, d, a, b, x[k + 6], S43, 0xA3014314); b = II(b, c, d, a, x[k + 13], S44, 0x4E0811A1); a = II(a, b, c, d, x[k + 4], S41, 0xF7537E82); d = II(d, a, b, c, x[k + 11], S42, 0xBD3AF235); c = II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB); b = II(b, c, d, a, x[k + 9], S44, 0xEB86D391); a = addUnsigned(a, AA); b = addUnsigned(b, BB); c = addUnsigned(c, CC); d = addUnsigned(d, DD); var tempValue = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d); return tempValue.toLowerCase(); module.exports.md5 = md5
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