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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 ...
PHP Session Security
...']. This adds a small barrier to session hijacking. You can also check the IP address. But this causes problems for users that have changing IP address due to load balancing on multiple internet connections etc (which is the case in our environment here).
Lock down access to the sessions on the file...
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...
Why does InetAddress.isReachable return false, when I can ping the IP address?
Why does isReachable return false ? I can ping the IP.
10 Answers
10
...
Open Redis port for remote connections
...alls that might block the access.
Important: If you don't use a firewall (iptables, ufw..) to control who connects to the port in use, ANYONE can connect to this Redis instance. Without using Redis' AUTH that means anyone can access/change/delete your data. Be safe!
...
How can I display an RTSP video stream in a web page?
I have an ip camera which provides a live RTSP video stream. I can use VLC media player to view the feed by providing it with the URL:
...
Nginx Different Domains on Same IP
.... I tend to have one file per real domain. Each of which might contain multiple server blocks.
– aychedee
Jun 28 '13 at 15:19
5
...
https URL with token parameter : how secure is it?
... it wouldn't be a proper page (no google analytics or other third party script).
– Flackou
Mar 13 '09 at 16:41
5
...
SQL Server, convert a named instance to default instance?
...ing without using the instance name, and using only the server name and/or IP address, then you can do the following:
Open SQL Server Configuration Manager
Click SQL Server Network Configuration
Click Protocols for INSTANCENAME you want to make available (i.e. SQLExpress)
Right-click TCP/IP and cl...
BLE（四）嗅探工具 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...行追踪，并能够配合Wireshark解析BLE数据包，可以很直观的显示出内部的层级关系和各字段含义。比较遗憾的是，实际使用发现它并没有CC2540 USB Dongle稳定，经常会抓不到后面数据通信的网络包，不过这一问题应该是可以通过优化...