이것저것

1. Docker 저장소 GPG key 추가sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D 2. Docker 저장소 추가echo "deb https://apt.dockerproject.org/repo ubuntu-xenial main" | sudo tee /etc/apt/sources.list.d/docker.list 3. APT 업데이트sudo apt-get update 4. Docker, Docker-compose 설치sudo apt-get install -y docker-enginesudo apt-get install -y docker-..

1. samba 설치sudo apt-get install samba samba-common-bin 2. samba 계정 추가sudo smbpasswd -a khb 3. samba 설정 변경sudo vi /etc/samba/smb.conf ...[khb]comment = welcomepath = /home/khbvalid users = khbwritable = yescreate mask = 0644directory mask = 0755 4. samba 재시작sudo /etc/init.d/smbd restart

증상multi-thread 환경에서 libcurl 사용 시 시스템 죽음 [Thu Jun 09 09:31:35.063 2016] * Curl_ipv4_resolve_r failed for tunnel-manager.xxxxxxxx.com[Thu Jun 09 09:31:35.063 2016] * Couldn't resolve host 'tunnel-manager.xxxxxxxx.com'[Thu Jun 09 09:31:35.063 2016] * Closing connection 0 [Thu Jun 09 09:31:35.063 2016] curl_easy_perform() failed: Couldn't resolve host name[Thu Jun 09 09:31:35.063 2016] * Hostname wa..

지원하는 쉘 목록 확인# cat /etc/shells /bin/sh/bin/bash/sbin/nologin/bin/dash 계정의 기본 쉘을 /sbin/nologin으로 변경# sudo vi /etc/passwd root:x:0:0:root:/root:/bin/bash //기존root:x:0:0:root:/root:/sbin/nologin //변경

1. 데몬 스크립트 작성# sudo su# cd /etc/init.d# touch tunnel# chmod 755 ./tunnel# vi ./tunnel nohup 사용- 세션이 종료되어도 백그라운드로 프로세스 동작- 로그를 파일로 출력#!/bin/bash# chkconfig: 345 88 08# description: Tunneling Server Deamon VENV=/home/ec2-user/venvWORKDIR=/home/ec2-user/tunnelDAEMON=tunnel.pyLOG=/var/log/tunnel.log function do_start(){ source ${VENV}/bin/activate cd ${WORKDIR} nohup python ${DAEMON} & >> ${LOG}} fu..

express의 res 파라미터를 마지막 콜백 함수에서 호출할 수 있도록 클로져를 활용한다. app.get('/server', function (req, res) { //-------------------(1) var req_id = uuid.v4(); var reqa = zmq.socket('req'); var reqb = zmq.socket('req'); var clear_resource = function() { reqa.close(); reqb.close(); clearTimeout(tid); } var tid = setTimeout(function(){ console.log('------zmq timeout------') res.sendStatus(408); clear_resource(); },..

기존 설정security-context.xml// 계정당 동시 로그인 제한 : 100개 tomcat web.xml// 세션 만료 시간 : 30분30 증상session timeout 만료 후에도 session이 제거되지 않아 새로운 session 생성 불가능 (로그인 불가능)단, 아래와 같이 명시적으로 expire시킨 경우에는 session이 제거된다.expireDuplicatedLoginUser(...){...List list = sessionRegistry.getAllSessions( dupLoginUserName, false );for ( int n = 0; n < list.size(); n++ ) {SessionInformation info = list.get( n );info.expireNow()..

데이터 저장 및 탐색 방법 test.pyimport redis r = redis.StrictRedis(host=host, port=port, db=0) # inputr.hmset('id:a', {'ip':'192.168.10.1', 'port':1000})r.hmset('id:b', {'ip':'192.168.10.2', 'port':1001})r.hmset('id:c', {'ip':'192.168.10.3', 'port':1002})r.hmset('id:d', {'ip':'192.168.10.4', 'port':1003}) # outputkeys = r.keys('id:*')for key in keys: item = r.hgetall(key) print '%s:%s' % (item['ip'], item..

빨강 : HTTPS 관련 설정 파랑 : Digest 관련 설정 index.jsvar https = require('https') , fs = require('fs') , express = require('express') , bodyParser = require('body-parser') , passport = require('passport') , httpauth = require('./modules/httpauth') , path = require('path'); var options = {key: fs.readFileSync(path.resolve(__dirname, 'ssl/key.pem')),cert: fs.readFileSync(path.resolve(__dirname, 'ssl/cert.pe..

The Top 10 Most Common Mistakes That Node.js Developers MakeMistake #1: Blocking the event loopMistake #2: Invoking a Callback More Than OnceMistake #3: Deeply Nesting CallbacksMistake #4: Expecting Callbacks to Run SynchronouslyMistake #5: Assigning to “exports”, Instead of “module.exports”Mistake #6: Throwing Errors from Inside CallbacksMistake #7: Assuming Number to Be an Integer DatatypeMist..