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Bash Script: count unique lines in file
I have a large file (millions of lines) containing IP addresses and ports from a several hour network capture, one ip/port per line. Lines are of this format:
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Show MySQL host via SQL Command
... possible to show the current connections host.
Not connection_id, but the IP Address or Name of the host.
4 Answers
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Is there a way to stop Google Analytics counting development work as hits?
I have added the JavaScript that I need to the bottom of my pages so that I can make use of Google Analytics. Only problem is that I am sure that it is counting all my development work as hits. Seeing as I probably see some of those pages a hundred times a day it will really skew my readings. Is the...
Custom domain for GitHub project pages
...99.111.153
Check the Github docs to confirm these are the most up-to-date IPs.
Create a CNAME record to point www.example.com to YOUR-GITHUB-USERNAME.github.io.
This is the most confusing part.
Note the YOUR-GITHUB-USERNAME NOT the GitHub repo name! The value of YOUR-GITHUB-USERNAME is determine...
从Sloodle看三维虚拟学习环境的发展趋势 - 资讯 - 清泛网 - 专注C/C++及内核技术
...教育技术研究工作者将兴趣投入到 MUVE上 ,并有调查研究显示这其中很多人是通过 SL才接触到 MUVE的 (NMC, 2007)。SL是一个模拟真实世界的大型多人在线角色扮演平台 ,巧妙融合了联网游戏和在线虚拟社区的诸多概念 ,创造了一种新型...
Check status of one port on remote host [closed]
...or Windows, Linux, and Mac OS X.
For example, check for telnet on a known ip:
nmap -A 192.168.0.5/32 -p 23
For example, look for open ports from 20 to 30 on host.example.com:
nc -z host.example.com 20-30
share
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Select datatype of the field in postgres
...QL allows you to have the same table name (even an identical table) in multiple schemas. The robust way to write that WHERE clause considers that possibility: where table_catalog = ? and table_schema = ? and table_name = ?; But this information_schema view doesn't consider that the DDL might have us...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
...ed, but that is per client per server port, and needs clarifying.
Each TCP/IP packet has basically four fields for addressing. These are:
source_ip source_port destination_ip destination_port
< client > < server >
Inside the TCP stack, these four fields a...
Get the IP address of the remote host
... class, which contains ServerVariables property which can provide us the IP address from REMOTE_ADDR property value.
5 ...
SensorUtil 传感器工具扩展：在后台和屏幕关闭时保持传感器工作 · App Inv...
...持续运行，应用必须启动前台服务。前台服务会在状态栏显示通知，告知用户应用正在后台运行。
传感器生命周期
App Inventor 的传感器组件在 onPause 事件中禁用，在 onResume 事件中重新启用。要保持传感器在...