From 8081a5520a441b43a8a7a73f3a90c7aacfaa8e10 Mon Sep 17 00:00:00 2001 From: Timotej Lazar Date: Sun, 24 Feb 2019 21:05:27 +0100 Subject: Move everything one level up --- tasks/custom_rdate/howtos/en/index.html | 65 ++++++++++++++++++++ tasks/custom_rdate/howtos/images/bu1.png | Bin 0 -> 979 bytes tasks/custom_rdate/howtos/images/bu15.png | Bin 0 -> 679 bytes tasks/custom_rdate/howtos/images/bu2.png | Bin 0 -> 826 bytes tasks/custom_rdate/howtos/images/bu3.png | Bin 0 -> 13656 bytes tasks/custom_rdate/howtos/images/bu4.png | Bin 0 -> 1564 bytes tasks/custom_rdate/howtos/images/bu5.png | Bin 0 -> 11278 bytes tasks/custom_rdate/howtos/images/bu6.png | Bin 0 -> 15244 bytes tasks/custom_rdate/howtos/images/bu7.png | Bin 0 -> 3842 bytes tasks/custom_rdate/howtos/images/bu8.png | Bin 0 -> 3420 bytes tasks/custom_rdate/howtos/images/bu9.png | Bin 0 -> 4245 bytes .../howtos/images/predvaja_clip_image003.gif | Bin 0 -> 686 bytes tasks/custom_rdate/howtos/images/s1.png | Bin 0 -> 700 bytes tasks/custom_rdate/howtos/images/s2.png | Bin 0 -> 3882 bytes tasks/custom_rdate/howtos/images/s3.png | Bin 0 -> 3569 bytes tasks/custom_rdate/howtos/si/index.html | 67 +++++++++++++++++++++ 16 files changed, 132 insertions(+) create mode 100644 tasks/custom_rdate/howtos/en/index.html create mode 100644 tasks/custom_rdate/howtos/images/bu1.png create mode 100644 tasks/custom_rdate/howtos/images/bu15.png create mode 100644 tasks/custom_rdate/howtos/images/bu2.png create mode 100644 tasks/custom_rdate/howtos/images/bu3.png create mode 100644 tasks/custom_rdate/howtos/images/bu4.png create mode 100644 tasks/custom_rdate/howtos/images/bu5.png create mode 100644 tasks/custom_rdate/howtos/images/bu6.png create mode 100644 tasks/custom_rdate/howtos/images/bu7.png create mode 100644 tasks/custom_rdate/howtos/images/bu8.png create mode 100644 tasks/custom_rdate/howtos/images/bu9.png create mode 100644 tasks/custom_rdate/howtos/images/predvaja_clip_image003.gif create mode 100644 tasks/custom_rdate/howtos/images/s1.png create mode 100644 tasks/custom_rdate/howtos/images/s2.png create mode 100644 tasks/custom_rdate/howtos/images/s3.png create mode 100644 tasks/custom_rdate/howtos/si/index.html (limited to 'tasks/custom_rdate/howtos') diff --git a/tasks/custom_rdate/howtos/en/index.html b/tasks/custom_rdate/howtos/en/index.html new file mode 100644 index 0000000..18ebfc1 --- /dev/null +++ b/tasks/custom_rdate/howtos/en/index.html @@ -0,0 +1,65 @@ + + + + + + + + +

Custom rdate

Short preview:

+ Set time on server using rdate. Write a program that converts 32-bit numbers into a readable time format.

Instructions:

+ 1. Downlaod Student.vdi (client) and SimpleArbiter.vdi (server) from the virtual machine images folder
+ 2. Use VirtualBox (or similar) to create two virtual machines, select the virtual disk images from the previous step as hard drives
+ 3. Run both virtual machines.
+ 4. Login on client user: root pass: kaboom and server user: tester pass: tester

First part: update time using rdate.

+ 1. Find and remember your server IP address. (ifconfig)

+ 2. Install rdate with sudo apt-get install rdate
+ 3. On Student client use rdate to update the machine time rdate SERVER_IP

+ Note: It's NOT an error if the updated time does not match the correct time.
+

Second part: write a program that converts 32bit numbers into a readable time format.

+ You can write a program in Java or Python using your favourite text editor. +

Java

+ 1. We use nano guliver.java to create a new blank file
+ 2. Write a program that converts 32bit numbers into a readable time format.
+

+ 3. Press Ctrl+X, then Y and Enter to save the program
+ 4. In case you don't have java installed use sudo apt-get install openjdk-6-jdk
+
+ 5. To compile use javac bintodec3.java
+ 6. Run the created program with java guliver and input the server IP or name...
+
+

Python

+ 1. Use nano guliver.py to create a new empty python file.
+ 2. Write a program that converts 32bit numbers into a readable time format.
+

+ 3. Press Ctrl+X, then Y and Enter to save our program
+ 4. Run the created program with python guliver.py

Testing

+ 1. Use command ./run_test.py to run the tester
+
+ 2. Your username and password are the same as on ucilnica (npr.: "pz1234@student.uni-lj.si" in "geslo123").
+
+ 3. Name of the task should look like 09.predvaja.
+ 4. When prompted for file path insert your program path (example: if bintodec3.py is in the same folder as program run_test.py run with ./bintodec3.py).
+ 5. Then input your server IP address (SimpleArbiterRDate).
+ 6. If all goes well the program should give you an OK that means you've completed your task successfully. +

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Custom rdate

Naloga na hitro:

+ Nastavi uro na strežniku s pomočjo rdate. Napiši program, ki pretvori 32-bitna števila v čas. +

Navodila:

+ 1. Z imenika s slikami virtualnih računalnikov povlecite sliki Student.vdi(klient) in SimpleArbiterRDate.vdi(strežnik).
+ 2. Z VirtualBoxom (ali podobnim) ustvarite dva virtualna računalnika in jim kot disk za shranjevanje podajte Student.vdi ter SimpleArbiterRDate.vdi.
+ 3. Zaženite oba navidezna računalnika.
+ 4. Na Student se prijavite z uporabnikom root in geslom kaboom + na SimpleArbiterRDate pa z uporabnikom tester in geslom tester. +

Prvi del naloge: posodobi uro računalnika s pomočjo rdate.

+ 1. Preverite in si zapišite IP naslov na SimpleArbiterRDate. (ifconfig)

+ 2. Z ukazom sudo apt-get install rdate namestimo program rdate.
+ 3. Na Student z pomočjo rdate posodobi uro računalnika. rdate IP_SIMPLE_ARBITER

+ Opozorilo: NI napaka, če se posodobljen čas ne ujema s pravilnim časom.
+

Drugi del naloge: napiši program, ki pretvori binarni zapis 32-bitnega števila v časovni format.

+ Nalogo lahko rešite v Javi ali v Pythonu. Prav tako pa lahko kodo pišete v poljubnem tekstovnem urejevalniku.

Java

+ 1. Z ukazom nano guliver.java ustvarimo in odpremo prazen program s tekstovnim urejevalnikom nano
+ 2. Napišemo program za pretvarjanje 32-bitnega števila v čas
+ 3. Pritisnemo Ctrl+X, nato Y in Enter, da program zapremo in shranimo.
+ 4. Če je še nimamo, naložimo Javo sudo apt-get install openjdk-6-jdk

+ 5. Prevedemo program javac bintodec3.java
+ 6. Lahko ga še zaženemo ter preizkusimo java guliver.Na standardni vhod vnasemo IP naslov ali ime strežnika NTP strežnikom, ki nam pošlje 32 bitno število in pretvori v čas

+

Python

+ 1. Z ukazom nano guliver.py ustvarimo in odpremo prazen program s tekstovnim urejevalnikom nano
+ 2. Napišemo program za pretvarjanje 32-bitnega števila v čas
+ 3. Pritisnemo Ctrl+X, nato Y in Enter, da program zapremo in shranimo.
+ 4. Program zaženemo z ukazom python guliver.py

+

+ +

Testiranje

+ 1. Lahko poženemo tester; z ukazom ./run_test.py
+
+ 2. Kot "Upor. Ime" in "Geslo" napišite vaše podatke učilnice. (npr.: "pz1234@student.uni-lj.si" in "geslo123")
+
+ 3. Kot ime naloge vpišite 09.predvaja.
+ 4. Ko vas program vpraša po poti programa vnesite vašo pot do programa za pretvarjanje. (npr.: če imate program bintodec3.py v isti mapi kot program run_test.py, vnesete: ./bintodec3.py)
+ 5. Povpraša tudi po IP naslovu SimpleArbiterjaRDate, vnesite.
+ 6. Če je šlo vse po sreči, program vrne OK vi pa ste opravili nalogo. +

+ + -- cgit v1.2.1