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How to split a string and assign it to variables
...trings"
)
func main() {
s := strings.Split("127.0.0.1:5432", ":")
ip, port := s[0], s[1]
fmt.Println(ip, port)
}
Output:
127.0.0.1 5432
One step, for example,
package main
import (
"fmt"
"net"
)
func main() {
host, port, err := net.SplitHostPort("127.0.0.1:5432")
...
How to overcome root domain CNAME restrictions?
...N. Most CDNs are by necessity an FQDN, since it could resolve to different IPs at different locations or times. I use DNS Made Easy and was able to use the ANAME record type.
– Rubix
Oct 1 '15 at 6:26
...
Assign output to variable in Bash
... you don't put a $ in front of a variable you're assigning. You only use $IP when you're referring to the variable.
#!/bin/bash
IP=$(curl automation.whatismyip.com/n09230945.asp)
echo "$IP"
sed "s/IP/$IP/" nsupdate.txt | nsupdate
...
C/C++中的段错误(Segmentation fault) - C/C++ - 清泛网 - 专注C/C++及内核技术
...看调试信息
$ gdb ./segerr
(gdb) l --用l(list)显示我们的源代码
1 #i nclude <stdio.h>
2
3 int
4 main()
5 {
6 int i = 0;
7
8 scanf ("%d", i);
9 printf ("%d\n", i);
10 ...
绘画动画组件 · App Inventor 2 中文网
...ha00表示完全透明,FF表示不透明。仅当没有背景图像时才显示背景颜色,即背景图像显示优先于。
背景图像
指定画布背景图像的文件名称。
背景Base64图像
设置Base64格式的背景图片。这需要 API 级别 >= 8。对于 API 级别低...
LoadRunner中参数化技术详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...意】对于参数类型为File/Table的数据文件:
l 在参数数据显示区中,最多只显示前100条数据,之后的不显示,但不影响正常取数据。
l 在记事本中编辑参数数据时,数据文件一定要以一个空行结束,否则,最后一行输入的数据...
How to open a specific port such as 9090 in Google Compute Engine
...tags=<list-of-your-instances-names> --source-ranges=0.0.0.0/0 --description="<your-description-here>"
This will open the port 9090 for the instances that you name. Omitting --source-tags and --source-ranges will apply the rule to all instances. More details are in the Gcloud documentat...
What is the best way to prevent session hijacking?
...bsite for 5 minutes, they'll have to login again
– elipoultorak
Nov 16 '15 at 11:26
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360安全检测到18%后提示失败,关闭云盾、设置白名单解决 - 更多技术 - 清泛...
...防火墙进行拦截。且这些请求都是从360网站安全卫士集群ip地址发出,且攻击流量较大,速度也较快,导致触发了应用防火墙的防护机制,将360网站安全卫士的集群ip加入了黑名单,在一定时间内封禁其所有的访问,所以会导致...
01_Real Application Clusters Overview - 文档下载 - 清泛网 - 专注IT技能提升
...真正应用集群
ASM管理存储,Oracle自己的文件系统
心跳ip有问题,关闭次节点只留主节点,防止数据混乱
virtual ip 可漂移,private ip 心跳ip,scan ip DNS解析
ntp服务禁用(时间同步服务,Oracle自己有同步)
grid 用户:存储、集群...