Last week, I got a brand new MBPr as my primary workstation provided by company. Here is its spec.:
Our Ubuntu workstation is required some applications installed for complying security policy. Those applications will show some icons on Systray. After upgrade from 12.04 to 14.04, those icons are missing.
The reason is “Unity Notification Area (Systray) Whitelist Is Obsolete [Ubuntu 13.04 Raring Ringtail Changes]“. After a little bit searching, here is the solution:
sudo apt-get install indicator-systemtray-unity
Then log out and log in again.
To check the SSH service (default port 22):
nc -z $IP 22
To check the XML Management Interface (default port 5550):
nc -z $IP 5550
To check the SNMP (UDP port 161):
nc -zu $IP 161
If connection is successful, it will report a message like:
Connection to $IP 22 port [tcp/ssh] succeeded!
and exit with 0.
Reference: nc(1) – Linux man page
I put an old 160GB HD on T410 then start to use IBM OCDC ISO on it.
Since there is a bug in Ubuntu which let iPhone with iOS7 can not be mounted, I decided to disable it. Here is the steps:
- Install dconf-tools.
- Launch dconf Editor and navigate to org -> gnome -> desktop -> media-handling
- Uncheck “automount” and “automount-open”
Since the T410 is used for nearly four years and there is a chance to get a newer machine, I got a second hand T420 yesterday. It is pretty much like T410. So I decided to switch the HD, the Ubuntu 12.04 is working fine with it.
The only thing I need to do is change the device MAC address to fit the current machine.