UMan: The unusual short form for User Manual for my CS2301 module.
Task: To write a usual manual for the library/dvd collection mangement freeware called Libra.
Since it was meant to catalog DVDs, my idea was to package it like a DVD product.
Inside in black/white to cut printing costs.
CD sponsored by teammate.
My teammate and me still working on it after night fallen. (another teammate’s not present)
The last week before recess, this assignment completed and submitted (in surprisingly less than 2 weeks) plus a short presentation for my accounting.
New projects pile up. Rrringgg (sound of the old school bell)..~~ Time for recess!
I’ve been to server rooms, power control stations but a data center feels different.
Like in those movies, multiple sliding gates with biometric access control, engineers on shift monitoring screens, plenty of close circuit cameras, air-conditional room, tons of cables running under the floor, rows after rows of racks of servers and wires.
A $2k server rack is slide into place, power and ethernet cables attached. Monitor, keyboard placed on a trolley is rolled near for connection like a life support unit. The power button pushed, the small but powerful fans hums along with the symphonies of fan noise in the data center.
The network installed CentOS, the free enterprise Red Hat Linux, runs the server. Due to my personal discrimination against RH since version 6, I had to adapt to its environment.
/etc/sysconfig/network-scripts was the place where ip, dns addreses and network configurations was. system-config-securitylevel configures the firewall, yum installs, manages and updates the system. Guides exist online. Some other commands to configure and control services. I also discovered write and talk. The rest is usual linux.
http://www.lab4solutions.com is sparkling into life.
Tunneling, VPN, proxy whatever you call it, its one the fields I forte.
NUS VPN
http://www.nus.edu.sg/vpn/usage.html
SOC VPN
https://noc.comp.nus.edu.sg/vpn
NUS WebVPN
http://webvpn.nus.edu.sg
NUS Proxy Server
proxy.nus.edu.sg:8080
NUS Domain
http://spnp.nus.edu.sg/
Whats the use? You use it when you need some resources which is only accessible from campus (intranet).
Here’s something not so obvious. You can access intranet using SOC’s unix account.
SSH. Its more than just an secured telnet. Services can be tunnelled through it. Example? Secured File Transfer.
More fun? Forward the remote port 1755 (host: live-vip-49.nus.edu.sg) locally to get the streams available only in campus. (Hint: see http://nuscast.nus.edu.sg/)
Whats next? Nus Naxos Music Library using its library web proxying service. http://lib.nus.edu.sg/
My networking module has begun to get more exciting. (New web server to code soon perhaps?)
“Members of EMS Bugware”, the file name I playfully gave to one of the project documents.
Its my 4th week of school, its a friday night, its 11pm and here are members of project group gathering round food tables with the company of laptops, wifi, sofas and lengthy discussions.
1st report’s done with. Good job!
Lots more (projects, teams and experiences) to come soon.
Recent Comments