C/C++로 풀어보는 윈도우 구조
영어 공부할 때 단순 암기가 아닌 원리를 이해하는 방법으로 프로그램 개발과 분석을 공부합니다.
easy to loop command or watch on linux
easy to loop command or watch on linux In Linux, it is possible to use commands repeatedly in a shell. That’s watch command watch can be set to repeat in seconds with the -n option. If the above command is executed, the ls result is displayed on the screen every 5 seconds. You can use
Logstash File Output by syslog
This is useful when you need to create additional file logs for backup. If you want to adjust an item, you can specify the item name to specify the item. Facebook Comments
Logstash Debugging mode
There may be times when you need to check in the console that Logstash is running normally. A useful option is to use the following command: CentOS-based logstash installation location is / usr / share / logstash / bin / logstash, and the configuration file to test can be specified with -f. Facebook Comments
VI/VIM Editor – Basic Guide
VI / VIM Editor The most popular document viewer and editor in Linux. Here’s a look at some of the most commonly used features. Input Mode You can add or delete content through the input mode. If you want to end input mode, press esc key File Mode VI / VIM performs the file mode
Elasticsearch Curator Delete index Quick Guide
Elasticsearch Curator Delete index Quick Guide Curator is a useful tool for maintaining to Elastic search. Here’s what we can do with this tool: One of the most used functions is the Action to create or delete an index. Instead of looking at how to use it, here’s an easy way to do it. Install
OpenJDK Quick-Install Windows 윈도우 간편 설치
OpenJDK Quick-Install Windows 윈도우 간편 설치 Oracle JDKs and Open JDKs often have the same support. In addition, Oracle sites have changed in a way that can be used after a recent login, and there are many restrictions on usage policies. I prefer the freer Open JDK, which is not easy to find on the
How to setting PALOALTO management ip for first connect
How to setting PALOALTO management ip for first connect The first thing to do with Palo Alto is the management IP configuration. I will share how to proceed through the CLI. First, let’s check the currently set IP. >show system info If you use OVA, which is provided based on VM, network connection is done
Security attack 2019 summary
2019년 보안 공격 동향에 대한 통계 공유의 자리. 이런 자리가 여러모로 도움이 된다. 공격 트렌드와 공격 시나리오등을 공유하고 논의힐 수 있는 좋은 자리인것 같다. Facebook Comments
Logrotate – how to split log hourly on ubuntu or centos 6/7
Logrotate – how to split log hourly on ubuntu or centos 6/7 make hourly logrotate Create an hourly working directory and copy the syslog you will use in the example. sudo mkdir /etc/logrotate.hourly.d sudo cp /etc/logrotate.d/syslog /etc/logrotate.hourly.d/syslog Then type the following: sudo vi etc/logrotate.hourly.d/syslog /var/log/syslog { rotate 48 hourly missingok notifempty delaycompress compress postrotate
Syslog Priority와 Facility
Syslog Priority와 Facility 오늘은 Syslog의 Priority와 Facility에 대해서 논의해보도록 하겠습니다. Syslog는 시스템, 장비등에서 사용하는 이벤트를 네트워크로 전송하는 규칙과 같습니다. https://tools.ietf.org/html/rfc5424 Priority와 Facility는 Syslog에서 중요한 구분자 역활을 하게 됩니다. Priority Priority는 로그의 수준을 의미합니다. 로그에 등급으로 구분한다고 할 수 있습니다. Syslog에는 emergencies(0)부터 Debugging(7) 까지 등급이 있으며, 아래와 같이 구분이 가능합니다. 0 – Emergency 1 –