What is 503 backend fetch failed whenshare wordpress post to facebook

once you wrote a wonderful post , add the social sharing plugin in wordpress , then you test to share your post to facebook ….. BOOM ! 503 backend fetch failed ? what the hell is this?

Well , now you wonder/complain that plugin installed , then you uninstall the plugin and install another one …. BOOM !! 503 again !

OK , remember , every time you get in trouble with facebook , go to facebook debug tool first :

https://developers.facebook.com/tools/debug/sharing/

input your page URL that got in trouble, press “debug” , ding-dong ! the answer is here .

For this example, it’s problem about og:image , to fix this , we recommand All in one SEO pack , you can find it in wordpress plugins .

then , go to [Feature Manager ] , active [Social Meta]

For most of situations , after setting correct og:image and go to faceboook debug page recap your post, will work.

But for me, unfortunately , no luck still. Sometimes ,it is jsut about time. Don’t know why facebook debug tool still get cache content. Just wait and retry . It will work finally .

Good luck !


Insecured web IP cam and How to Fix it

What’s insecured web/IP cameras ? Check out this app : Cameras Live ,you can get it from Google play store and Apple app store .

「icon google store」的圖片搜尋結果

there you can find thousands of insecured cameras over the world , and you can get real time image/video from those cameras.

image

as picture above shows, you can choose 100+ countries and over 5000 insecured cameras to view real time video. How comes ? simple , those cameras are lack of password protect ! or just left default username/password there, like admin/admin . This is just like you leave your doors opened and welcome everybody to visit.

How TO Fix It ?

If you want to avoid your IP cameras been accessed , you simply need to password protect your camera , that’s it . But ! Believe or not , a lot of user manuals of IP cam doesn’t document how to set up password or change default password.

  1. check out user manual of web/IP cam: looking for “network config” , “server setup ” … kind of these words .
  2. if you can not find it in user manual , check out the software came with web/IP cam , sometimes the function of setup/change password included but not documented .
  3. ask customer service

Good luck !