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记一次LVS/Nginx环境下的访问控制 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...径。
简单分析一下访问日志，很容易就能拿到了可疑的 IP 段，直接用 iptables 封杀：
shell> iptables -A INPUT -s x.y.z.0/24 -j DROP
本以为世界会就此清净，可没想到一点儿用都没有。莫非小偷已经突破锁头的限制？不能够啊！直觉告...
开源邮件传输代理软件 -- Postfix 介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...
postfix会在内存中保存一个有长度限制的当前不可到达的地址列表。这样就避免了对那些目的地为当前不可到达地址的邮件的投递尝试。从而大大提高了系统的性能。
1.5、postfix的安全性
postfix通过一系列的措施来提高系统...
windbg 备忘 - 更多技术 - 清泛网 - 专注C/C++及内核技术
....else {...}
命令：
1.Dmp
.dump /m
/ma
/mFhutuel
s -u (起始地址) 搜索
eb 插入
.writemem 写内存
.frame /c 切换栈帧
kv (数量) 栈帧信息
dt -r 递归 ntdll!*
u /uf (函数)
ub (往前)
常用前缀：Cc（Cache Manager），Cm（Configuration Manager...
Why do we need private subnet in VPC?
... private subnets, allowing those machines to use the NAT instance's public IP address for their outbound Internet access.
The new managed NAT service does not fundamentally change the applicability of the following information, but this option is not addressed in the content that follows. A NAT ...
How to get the IP address of the server on which my C# application is running on?
I am running a server, and I want to display my own IP address.
26 Answers
26
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How to get the primary IP address of the local machine on Linux and OS X? [closed]
...oking for a command line solution that would return me the primary (first) IP address of the localhost, other than 127.0.0.1
...
Select rows which are not present in other table
...ll of them standard SQL.
NOT EXISTS
Often fastest in Postgres.
SELECT ip
FROM login_log l
WHERE NOT EXISTS (
SELECT -- SELECT list mostly irrelevant; can just be empty in Postgres
FROM ip_location
WHERE ip = l.ip
);
Also consider:
What is easier to read in EXISTS subque...
How to get IP address of the device from code?
Is it possible to get the IP address of the device using some code?
27 Answers
27
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NASM x86汇编入门指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...关于AT&T的汇编入门文章)
3.2 如何安装NASM？
下载地址：http://www.nasm.us/
可以下载源码包或者rpm包，rpm –iUh *.rpm
四、Linux汇编介绍
4.1 DOS和Linux汇编主要不同的地方
DOS汇编中，大部分工作依靠21号中断(int 21h)...
Deny all, allow only one IP through htaccess
I'm trying to deny all and allow only for a single IP. But, I would like to have the following htaccess working for that single IP. I'm not finding a way to have both working: the deny all and allow only one, plus the following options:
...