Manage Books with Google Photos

Google Photo is very useful to manage my reading notes and interesting sections. Once digitalize, I can read everywhere. It also saves space.

While reading, I use sticker post-it to bookmark. After finishing, I use a smart phone to take photos. They will be uploaded to Google Photos automatically . Then, I retouch them, group as an album, and add text to keep notes on desktop computer. Here are steps:

Continue reading

Tethering with Asus RT-AC1200G+ Drops Automatically

I bought a new Asus RT-AC1200G+ to replace my RT-AC51U for better signal and Gigabit Ethernet. It’s much faster to copy files to/from QNAP TS-119PII now. But I notice it drops internet connection several times a day, I am sure there is nothing with my tethering device as described in “Android USB Tethering Drops and Data Usage Crashes, try Reset“.

RT-AC1200G+不定期重啟 has discuss the same issue. It seems related to bugs in current firmware ( I have to download version released on 2016/11/14 from RT-AC1200G+ Driver & Tools and upload via [Administration] → [Firmware Upgrade] tab. It will begin to flash and reboot automatically.

My RT-AC51U works without dropping for 3 days after the upgrade but still generate some warning in system log. I will keep an eye on it and update this post.


  1. Android USB Tethering Drops and Data Usage Crashes, try Reset
  2. Asus: RT-AC1200G+
  3. Asus: RT-AC1200G+ Driver & Tools
  4. Asus: RT-AC51U
  5. Mobile01: RT-AC1200G+不定期重啟
  6. QNAP TS-119PII with Mac OSX File Transfer Performance Report
  7. Wiki: Gigabit Ethernet

Restore Your Lost Tabs in Toby and How to Prevent It

Toby is a tab management extension in Chrome. It helps me to save current session as a new a group and close all tabs. Manage saved tabs by groups. Re-open a tab or a group quickly. Not only organize my working tabs more efficiently but also save memory and help my OS X more responsive. I also enable the “Sync to Google Drive option to make a backup of my groups.

Everything is perfect until I turn on “Sync to Google Drive on my Acer Chromebook 15 with the same Google Account. It didn’t sync back from Google Drive but replaced with the new default tab groups. The Chrome on OS X detects the new version on Google Drive and replace my local version. All my saved tabs are gone.
Continue reading

How to Remove Unwanted SSH Keys

After re-install my Synology DSM, I cannot use ssh to login DSM. It prompts for following warning message:

Last login: Thu Jun 16 10:11:39 on console
Amigos-Mac-mini:~ Amigo$ ssh admin@
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
Please contact your system administrator.
Add correct host key in /Users/Amigo/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/Amigo/.ssh/known_hosts:1
ECDSA host key for has changed and you have requested strict checking.
Host key verification failed.
Amigos-Mac-mini:~ Amigo$ 

In short, I have to remove my previous key. It’s saved in different location with different tools.

Continue reading