ericzhang.me

Eric Zhang [Xeroday]

July 29, 2017. Properly Whitelisting Cloudflare IPs. If you’re hosting a web service behind Cloudflare, properly hiding your origin IP address(es) requires blocking all HTTP/HTTPS traffic that doesn’t come from Cloudflare. Whitelisting is important to prevent attackers from scanning the internet and finding your origin IP. First, we block all http/https requests by dropping TCP requests to port 80/443. Iptables -A INPUT -p tcp - dport http -j REJECT - reject-with tcp-reset. Ip6tables -A INPUT -p tcp - dp...

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July 29, 2017. Properly Whitelisting Cloudflare IPs. If you’re hosting a web service behind Cloudflare, properly hiding your origin IP address(es) requires blocking all HTTP/HTTPS traffic that doesn’t come from Cloudflare. Whitelisting is important to prevent attackers from scanning the internet and finding your origin IP. First, we block all http/https requests by dropping TCP requests to port 80/443. Iptables -A INPUT -p tcp - dport http -j REJECT - reject-with tcp-reset. Ip6tables -A INPUT -p tcp - dp...

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Eric Zhang [Xeroday] | ericzhang.me Reviews

https://ericzhang.me

July 29, 2017. Properly Whitelisting Cloudflare IPs. If you’re hosting a web service behind Cloudflare, properly hiding your origin IP address(es) requires blocking all HTTP/HTTPS traffic that doesn’t come from Cloudflare. Whitelisting is important to prevent attackers from scanning the internet and finding your origin IP. First, we block all http/https requests by dropping TCP requests to port 80/443. Iptables -A INPUT -p tcp - dport http -j REJECT - reject-with tcp-reset. Ip6tables -A INPUT -p tcp - dp...

INTERNAL PAGES

ericzhang.me

1

Tutorials / Eric Zhang [Xeroday]

https://www.ericzhang.me/category/tutorials

April 5, 2016. Here’s an old (over a year) post that’s been sitting in my queue for a while. Some things may be out of date. Many web administrators use Cloudflare. In this post, I’ll highlight some methods, provide a short background on how/why they work, and give steps on fixing them. The classic diagram of Cloudflare is this:. December 30, 2014. Lizardstresser.su User Enumeration. Dumping Usernames and UIDs. After a ticket is created, a user can send messages through the ticket. December 19, 2013.

2

Reverse Proxy DDoS Protection / Eric Zhang [Xeroday]

https://www.ericzhang.me/reverse-proxy-ddos-protection

December 19, 2013. Reverse Proxy DDoS Protection. Skip to the good part. In the early years of high school, I was a part of a community that produced game mods (which I’ll now call AAA). There was another community who also developed similar mods (which I’ll now call BBB). Not surprisingly, there was a lot of animosity between the two communities and it quickly escalated to more than competing by building better products. A screenshot of a booter’s control panel. The problem, I figured, was that AAA....

3

Eric Zhang [Xeroday] / Page 2

https://www.ericzhang.me/page/2

August 27, 2013. A Summer with Sharewave in New York. Note to readers: I used the present tense to describe facts and past tense to describe my personal experiences. Sorry for any confusion. I had the pleasure of working with Sharewave. July 21, 2013. Howto: Automatic cPanel Backups. The following is a short 5 minute tutorial to set up your cPanel to automatically create backups and store them (for free) in another remote location via FTP using a PHP script and cPanel’s cron jobs. June 30, 2013. So for t...

4

Gas Station ATGs Exposed to Public / Eric Zhang [Xeroday]

https://www.ericzhang.me/gas-station-atgs-exposed-to-public

January 29, 2015. Gas Station ATGs Exposed to Public. HD Moore from Rapid7 recently disclosed. That over 5800 Automated Tank Gauges at gas stations around the world were publicly accessible. Anyone connected to the internet can now view the in-tank inventories of the gas stations and manage the gas tanks. The process to access the gauges is simple:. 1 Telnet into port 10001 of an ATG’s IP. 2 Type A (Ctrl A) followed by I20100. This command outputs a basic report. There are over 600 commands.

5

Life / Eric Zhang [Xeroday]

https://www.ericzhang.me/category/life

August 27, 2013. A Summer with Sharewave in New York. Note to readers: I used the present tense to describe facts and past tense to describe my personal experiences. Sorry for any confusion. I had the pleasure of working with Sharewave. June 30, 2013. Fast forward to 2013. I see a Reddit post about bitcoins reaching an all time high of $260 each. I looked at the charts and kicked myself for not buying bitcoins when they were only $5 each. Hi I'm Eric, a security engineer at Pinterest and recent Georgia T...

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istartedsomething.com

Windows 8’s application SmartScreen: speed bump for desktop apps | istartedsomething

http://www.istartedsomething.com/20120302/windows-8s-application-smartscreen-speed-bump-for-desktop-apps

March 2, 2012. Windows 8’s application SmartScreen: speed bump for desktop apps. After installing the Windows 8 Consumer Preview. One of the first things I tried was to install and run MetroTwit Loop. To my dismay, my screen darkened. “Windows protected your PC” it read. “Oh good” I thought, that is before I realized it stopped me from running my own application. Ironically I should have known this might happen because I first uncovered the existence of “Windows SmartScreen”. Content and now apps. As I&#...

wilsonmattos.com

About Me

http://www.wilsonmattos.com/about-me

September 18, 2016. September 18, 2016. You are here: Home. Welcome to my blog…a work in progress! I have over 17 years of experience in the Information Technology (IT) industry and have been a Linux advocate since 1995. My passion is making technology work. I love to undertake technical challenges and come up with solutions that make sense. Got a technical issue? I hold a Masters of Science Degree in Technology Management from Pepperdine University. Look me up and start a conversation. Middot; Log in.

wilsonmattos.com

Split Testing & Conversion Tracking Lessons

http://www.wilsonmattos.com/split-testing-and-conversion-tracking-lessons

September 18, 2016. September 18, 2016. You are here: Home. Split Testing & Conversion Tracking Lessons. Split Testing & Conversion Tracking Lessons. July 25, 2012. I’ve never been much into split testing and conversion tracking…because it takes time. I rather work on new products and release them quickly, then move on. However, a few months ago, a good friend, Andrea Warner, finally convinced me that I was being silly, so I invited Andrea to present a session for our 6-in-6 coaching. Second, even though...

wilsonmattos.com

How to Automate AWeber Opt-in for Clickbank Sales

http://www.wilsonmattos.com/how-to-automate-aweber-opt-in-for-clickbank-sales

September 18, 2016. September 18, 2016. You are here: Home. How to Automate AWeber Opt-in for Clickbank Sales. How to Automate AWeber Opt-in for Clickbank Sales. September 2, 2009. This post has been removed at the request of AWeber. For instructions on how to integrate Clickbank with AWeber, please see these instructions. On the AWeber site. Split Testing & Conversion Tracking Lessons. WordPress Membership Plugins (List, Comparison, and Reviews). How to Protect Clickbank Product Download Pages.

wilsonmattos.com

How to Protect Clickbank Product Download Pages

http://www.wilsonmattos.com/how-to-protect-clickbank-product-download-pages

September 18, 2016. September 18, 2016. You are here: Home. How to Protect Clickbank Product Download Pages. How to Protect Clickbank Product Download Pages. October 20, 2009. In a previous post, I talked about How to Automate AWeber Opt-in for Clickbank Sales. And I mentioned that it is a good idea (silly if you don’t) protect your download pages to ensure only legitimate customers who paid for your product can download it. 8221; and it does NOT work! This is not something I invented. In fact, this ...

wilsonmattos.com

How To Automate Your Web Server Backups

http://www.wilsonmattos.com/how-to-automate-your-web-server-backups

September 18, 2016. September 18, 2016. You are here: Home. How To Automate Your Web Server Backups. How To Automate Your Web Server Backups. March 15, 2009. When a web server crashes, it is a completely different story, because you are at the mercy of the hosting provider and you do not have physical access to the drive(s). What most people do not realize is that their hosting provider does NOT backup their data. Auto FTP Manager: Download Auto FTP Manager. CPanel-based Web Hosting: Hostgator. As my hos...

wilsonmattos.com

WordPress Membership Plugins (List, Comparison, & Reviews)

http://www.wilsonmattos.com/wordpress-membership-plugins-list-comparison-reviews

September 18, 2016. September 18, 2016. You are here: Home. WordPress Membership Plugins (List, Comparison, and Reviews). WordPress Membership Plugins (List, Comparison, and Reviews). January 11, 2010. WordPress is a great platform not only for blogs, but also for setting up membership sites to deliver premium content. Click Here to View and Purchase. Detailed review coming soon…. Click Here to View and Purchase. Pre-Requisites: ( Rapid Action Profits. Or ( Rapid Action Profits Membership Plus Bundle.

wilsonmattos.com

How To Improve Your Landing Page Quality Score

http://www.wilsonmattos.com/how-to-improve-your-landing-page-quality-score

September 18, 2016. September 18, 2016. You are here: Home. How To Improve Your Landing Page Quality Score. How To Improve Your Landing Page Quality Score. March 16, 2009. Create your landing page using whatever method you are familiar with and name it “index.php”. Paste the following code at the very top of the “index.php” file. Php if ($ GET['page']! Keyword=ucwords(str replace('-',' ',$ GET['page']) ; } else { $keyword="Default Phrase"; }? Php echo $keyword;? Title This is My Title /title. You will no...

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9-3-2015 I'm working on rebuilding this website after all the files got removed due to a not up-to-date WordPress installation. In the meantime, feel free to reach out to me at eric@ericzhang.com - Eric.

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Eric Zhang [Xeroday]

July 29, 2017. Properly Whitelisting Cloudflare IPs. If you’re hosting a web service behind Cloudflare, properly hiding your origin IP address(es) requires blocking all HTTP/HTTPS traffic that doesn’t come from Cloudflare. Whitelisting is important to prevent attackers from scanning the internet and finding your origin IP. First, we block all http/https requests by dropping TCP requests to port 80/443. Iptables -A INPUT -p tcp - dport http -j REJECT - reject-with tcp-reset. Ip6tables -A INPUT -p tcp - dp...

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Eric'blog

Classical and Pop music. Jennifer Lopez Pop Music Festival 23.06.2012 (Photo credit: Ana Kley). There are many kind of music style in the world, such as blue, jazz, baroque, and country music…Here, I would like to compare classical and pop which is similar, but it is totally difference. In conclusion, although pop and classical have many differences , but we still love that so much! English: Classical music. Public domain. Old edition. (Photo credit: Wikipedia). August 8, 2013 Categories: Uncategorized.

ericzhelka.ca

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Oak Bay Events and News. Oak Bay Events and News. I am honoured and privileged to represent Oak Bay as a first-term Oak Bay Councillor. Thank you to all who voted. There is much in the works, including regular tweets. And updates on upcoming community activities. Regular committee and council meetings begin again after the summer hiatus. All meetings are posted at:. Https:/ www.oakbay.ca/municipal-hall/meetings-minutes/minutes-agendas. Let me and Council. Latest Tweets by @EricZhelka.

ericzheng.com

Soleric | 用键盘记录成长点滴，我是立涵！

2013 年 11 月 26 日. 昨晚跟往常一样，我下班回家一进门就喊Eric在家吗，本来坐在客厅垫子上玩的Eric立马从垫子上面站起来，毕恭毕敬的看着我，我估计他是犯错误了，就问怎么啦他没回答。然后我问他你告诉我你是如何把储钱罐弄碎的啊他说的非常详细我坐在垫子上玩，然后把储钱罐平躺下来跟他玩，然后在他的头上摁了一下，他就坏了。 2012 年 12 月 27 日. 他剥完立马放进嘴里，然后回我吃到肚子里去啦晕死…. 2012 年 12 月 25 日. 2012 年 11 月 2 日. Amazing Eric 2012年11月02日，23月15天和往常一样，妈妈哼着三字经哄Eric睡觉，虽从没刻意让他背，没想到Eric自己就跟着一起背了，于是妈妈赶紧打开手机录音，让Eric再背一边，没想到他居然都背下来了，一直背完妈妈教的所有部分。 2012 年 10 月 27 日. 2012 年 10 月 25 日. 2012 年 10 月 24 日. 2012 年 10 月 14 日. 2012 年 10 月 5 日. 2012 年 9 月 15 日. 新浪微博 – Ethan.

ericzhi.wordpress.com

Eric Zhi's Blog-Economistime | The more we go in search of an answer, the less we will understand.

Eric Zhi's Blog-Economistime. The more we go in search of an answer, the less we will understand. Introduction to Optimal Growth Theory. February 2, 2011. Equilibrium Theory [2]: Production Economy, General Equilibrium with Time Dimension and Uncertainty. December 20, 2010. General Equilibrium with Time Dimension and Uncertainty. Equilibrium Theory [1] Exchange Economy: Partial Equilibrium, General Equilibrium for Exchange Economy, Walras’ Law, Edgeworth Box, Parato Optimal, Welfare Theorem. Definition o...