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http://tutorialforlinux.com/2014/06/26/how-to-save-images-for-the-web-on-ubuntu-linux-by-the-gimp-easy-visual-guide/ sudo su -c “apt-get install gimp-plugin-registry”

https://computing.artsci.wustl.edu/finding-great-images-your-website Unsplash truly beautiful photos that are completely free to do anything you want with. 10 new photos every 10 days. LittleVisuals is similar to Unsplash, but they aim to publish new photos every 7 days. These guys also allow you to download their photos in handy .zip packs! Function. 100% free to do whatever you want with. GratisPhotography is a project run by Ryan McGuire, which features new photos added each week. All pictures are completely free of any copyright! ...

Now try to use firebase for design app. But get somethings about : At offline, you can read, but add, delete, edit can not, this “can not” is snapshot that need to online sync, then get data. So firebase example is use models or objects to keep data, but you change activeity or clearn app, then objects data loss. maybe can use Serialization, but not good idea. Can’t control local database. This is fun, maybe firebase no local database or other methods for offline. Some app need offline, for counting data, CURD data, keep then sync, counting age. ...

http://docs.couchbase.com/couchbase-manual-2.5/cb-install/#couchbase-getting-started-hostnames 1、sudo /etc/init.d/couchbase-server stop or Linux 2.0 this is /opt/couchbase/var/lib/couchbase/ip. This file contains the identified IP address of the node once it is part of a cluster. Open the file, and add a single line containing the hostname, as configured in the previous step. For Linux 2.0.1. You update the ip_start file with the hostname. The file is at this location: /opt/couchbase/var/lib/couchbase/ip_start. Delete the files under: /opt/couchbase/var/lib/couchbase/data/* /opt/couchbase/var/lib/couchbase/mnesia/* /opt/couchbase/var/lib/couchbase/config/config.dat Execute: ...

http://gn00116743.pixnet.net/blog/post/59054284-%E6%9C%AC%E6%9C%88%E7%B2%BE%E9%81%B8%EF%BC%9A%E6%80%8E%E6%A8%A3%E6%88%90%E7%82%BA%E4%B8%80%E5%80%8B%E8%A6%8B%E9%8C%A2%E7%9C%BC%E9%96%8B%E7%9A%84%E7%9C%9F%E6%AD%A3%E6%9C%89%E9%8C%A2