F5 PVA (Packet Velocity ASIC) Acceleration

作者:reistlin 发布时间:April 25, 2014 分类:自由点击

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The Packet Velocity ASIC (PVA) is a hardware acceleration chip that delivers high performance L4 throughput and Denial of Service (DoS) protection.

Full Acceleration (Full)

All traffic is load balanced using Layer 4 features, such as virtual servers that operate only on IP addresses and ports of incoming traffic. The Full acceleration mode is not compatible with Layer 7 features, such as cookie persistence, header insertion, and rules that operate on data payload content.

Partial Acceleration (Assisted)

The first packets in each connection are processed in software, and each packet thereafter is accelerated. This process allows the software to make decisions based on Layer 4 content, but accelerates the traffic once the load balancing or persistence determination has been made.

No Acceleration (None)

No traffic is accelerated.

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Microsoft Virtual WiFi Miniport Adapter

作者:reistlin 发布时间:September 9, 2012 分类:自由点击

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Disable "Microsoft Virtual WiFi Miniport Adapter" for Windows 7

Start -> Run

netsh wlan set hostednetwork mode=disallow

[Exploits] glibc-exp.sh

作者:reistlin 发布时间:March 16, 2012 分类:自由点击

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exploits, vulnerabilities, shellcode, 0day :-)

CVE-2010-3847

[http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3847]

免责声明 (Statement of exemption from responsibility)

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产品无间道 - 如何毁掉对手产品?

作者:reistlin 发布时间:January 9, 2012 分类:自由点击

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产品无间道 - 如何毁掉对手产品?

1)挖掘大量非常优秀的功能或创意:等于没有亮点,损耗有限的资源;
2)严格流程化:无形中的障碍;
3)扩散牵连到许多部门:各种利益冲突尾大不掉;
4)过度细化职责与分工:瓦解出众多小团队相互扯皮纠缠不休;
5)绝对民主作风:多数人的意见都是不统一的,要形成一统一意见经常是一个漫长的过程,而且真理往往掌握在少数人手中,群众决策,能做的不做,不能做的做了;
6)重用言过其实的人:能说的一般不是实干家,一件事情做不成功他能找一万个合理的理由。

失败法则一:一麻袋土豆。低质量,低健壮产品堆砌功能。
失败法则二:一麻袋电网。负向激励。
失败法则三:一麻袋投机分子。追逐利益的机会主义者最能把关系搞乱。
失败法则四:一麻袋谎言。伪造数据部尊重市场和技术现实。
失败法则五:一麻袋文档。大量无用内耗工作。
失败法则六:一麻袋狂想。不切实际的高标准要求。
失败法则七:一麻袋干部。不解释。

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Linux HDD information (SATA/SCSI/SAS/SSD)

作者:reistlin 发布时间:October 31, 2011 分类:自由点击

linux

举例一:

[reistlin@reistlin.com ~]$ cat /proc/scsi/scsi | grep Model
  Vendor: ATA      Model: OCZ-VERTEX2 3.5  Rev: 1.27
  Vendor: ATA      Model: OCZ-VERTEX2 3.5  Rev: 1.27

通过 Google 查询:OCZ-VERTEX2 3.5寸 固态硬盘(Firmware:1.27)

[ http://www.google.com.hk/search?q=OCZ-VERTEX2+3.5 ]

举例二:

[reistlin@reistlin.com ~]$ cat /proc/scsi/scsi | grep Model
  Vendor: Slimtype Model: DVD A  DS8A5S    Rev: WC22
  Vendor: ATA      Model: ST31000524NS     Rev: SN11
  Vendor: ATA      Model: ST31000524NS     Rev: SN11
  Vendor: ATA      Model: ST31000524NS     Rev: SN11

通过 Google 查询:ST31000524NS 希捷 SATA 1TB 7200转 32M

[ http://www.google.com.hk/search?q=ST31000524NS ]

Apache / Nginx 非 root 启动 HTTP 80 端口

作者:reistlin 发布时间:September 7, 2011 分类:自由点击

linux

Apache,Nginx 非 root 用户下启动 HTTP 80 端口(端口范围小于1024)

方法一:

所有用户都可以运行(因为是755权限,文件所有者:root,组所有者:root)

chown root:root nginx
chmod 755 nginx
chmod u+s nginx

方法二:

仅 root 用户和 reistlin 用户可以运行(因为是750权限,文件所有者:root,组所有者:reistlin)

chown root:reistlin nginx
chmod 750 nginx
chmod u+s nginx

vnstat Info: Traffic rate for "ethX" higher than set maximum 100 Mbit

作者:reistlin 发布时间:August 3, 2011 分类:自由点击

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问题:

Info: Traffic rate for "eth0" higher than set maximum 100 Mbit (707->9722, r319 t12255), syncing.

解决:

vim /etc/vnstat.conf

# maximum bandwidth (Mbit) for all interfaces, 0 = disable feature
# (unless interface specific limit is given)
MaxBandwidth 1000

Concurrent Connections & Page View

作者:reistlin 发布时间:July 7, 2011 分类:自由点击

linux

Concurrent Connections = PV / seconds * (para connect per a page) * (time to react) * (factor) / (web hosts)

PV = Concurrent Connections * seconds * (web hosts) / (para connect per a page) / (time to react) / (factor)

补充信息:

UV(Unique Visitor):
独立访客,访问目标网站的一台客户端设备,24小时内相同的客户端设备只被计算为一次。

IP(IP Address):
独立IP,访问目标网站的一个独立IP地址,24小时内相同的IP地址只被计算为一次。

PV(Page View):
页面访问,访问目标每次浏览,点击或刷新,即被计算为一次。

Linux SSH DenyUsers

作者:reistlin 发布时间:April 27, 2011 分类:自由点击

linux

1,配置文件:/etc/ssh/sshd_config(拒绝用户 user1 user2 登陆;拒绝组 group1 group2 登陆)

vim /etc/ssh/sshd_config
 
DenyUsers user1 user2
DenyGroups group1 group2

2,重新启动 sshd 服务

/etc/init.d/sshd restart

Windows 7 Ultimate 旗舰版官方原版光盘镜像

作者:reistlin 发布时间:April 20, 2011 分类:自由点击

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Windows 7 Ultimate 旗舰版官方原版光盘镜像(x86 32位/x64 64位)

windows_7_dvd.gif

Windows 7 Ultimate (x86) – DVD (Chinese-Simplified)

文件名: cn_windows_7_ultimate_x86_dvd_x15-65907.iso
邮寄日期: (UTC): 8/23/2009 10:16:24 PM

SHA1: B589336602E3B7E134E222ED47FC94938B04354F
ISO/CRC: E6FDF910

Available to Levels: MSDN OS (VL); VS Pro with MSDN Pro (VL); VS Pro with MSDN Premium (Empower); MSDN OS (Retail); VS Pro with MSDN Pro (Retail); MSDN Universal (Retail); VSTS Team Suite (VL); VSTS Architecture (VL); VSTS Development (VL); VSTS Test (VL); VS Pro with MSDN Premium (VL); MSDN Universal (VL); VSTS Database (VL); VS Pro with MSDN Premium (Retail); VSTS Test (Retail); VSTS Development (Retail); VSTS Architecture (Retail); VSTS Team Suite (Retail); VSTS Database (Retail); BizSpark Admin; BizSpark; Visual Studio Professional with MSDN Embedded;

ed2k://|file|cn_windows_7_ultimate_x86_dvd_x15-65907.iso|2604238848|D6F139D7A45E81B76199DDCCDDC4B509|/

下载 [cn_windows_7_ultimate_x86_dvd_x15-65907.iso]

Windows 7 Ultimate (x64) – DVD (Chinese-Simplified)

文件名: cn_windows_7_ultimate_x64_dvd_x15-66043.iso
邮寄日期: (UTC): 8/23/2009 10:16:25 PM

SHA1: 4A98A2F1ED794425674D04A37B70B9763522B0D4
ISO/CRC: 05E9026C

Available to Levels: MSDN OS (VL); VS Pro with MSDN Pro (VL); VS Pro with MSDN Premium (Empower); MSDN OS (Retail); VS Pro with MSDN Pro (Retail); MSDN Universal (Retail); VSTS Team Suite (VL); VSTS Architecture (VL); VSTS Development (VL); VSTS Test (VL); VS Pro with MSDN Premium (VL); MSDN Universal (VL); VSTS Database (VL); VS Pro with MSDN Premium (Retail); VSTS Test (Retail); VSTS Development (Retail); VSTS Architecture (Retail); VSTS Team Suite (Retail); VSTS Database (Retail); BizSpark Admin; BizSpark; Visual Studio Professional with MSDN Embedded;

下载 [cn_windows_7_ultimate_x64_dvd_x15-66043.iso]

ed2k://|file|cn_windows_7_ultimate_x64_dvd_x15-66043.iso|3341268992|7DD7FA757CE6D2DB78B6901F81A6907A|/