> Even problems this article is trying to solve is related to Adobe AEM Personalization, but the technique it uses is AEM agnostic.
## About Varnish
[Varnish](https://varnish-cache.org/index.html) has been widely used nowadays as a caching HTTP reverse proxy. I use Varnish to act as second level [Load Balancer](https://f5.com/glossary/load-balancer) behind [F5](https://f5.com/), traffic controll
> 成于 2017-02-13， 记录在我的iCloud Notes里，现在搬家到个人网站上。
那日女友驾车从 London 往 Tonbridge 去，路上飘起小雪，温度很低。
This is probably AEM 6.3 specific issue, hopefully Adobe is going to have this issue fixed soon.
We’ve been experiencing sling:alias loss which affects most of the sites and pages. Since upgrade to AEM 6.3.
Our site is global and non-English websites rely heavily on AEM's sling:alias page property to support local language specific urls while the page names keep the same as that of Eng
I have been working as a software engineer since 2004. From initial video encoding/decoding algorithm (H.263 back then) optimization written in pure C, to log based inter database real time data replication research and implementation using C++ (I also coded some RPG on OS/400 if you are old enough to know). I stopped dealing with allocating and releasing memory life and started coding using C# o