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/set_motd/howtos/en/index.html | 44 ++++++++++++++++ tasks/set_motd/howtos/images/first.png | Bin 0 -> 3793 bytes tasks/set_motd/howtos/images/img1.png | Bin 0 -> 64082 bytes tasks/set_motd/howtos/images/img10.png | Bin 0 -> 27789 bytes tasks/set_motd/howtos/images/img11.png | Bin 0 -> 2090 bytes tasks/set_motd/howtos/images/img12.png | Bin 0 -> 4119 bytes tasks/set_motd/howtos/images/img2.png | Bin 0 -> 64618 bytes tasks/set_motd/howtos/images/img3.png | Bin 0 -> 63941 bytes tasks/set_motd/howtos/images/img4.png | Bin 0 -> 54840 bytes tasks/set_motd/howtos/images/img5.png | Bin 0 -> 12233 bytes tasks/set_motd/howtos/images/img6.png | Bin 0 -> 33093 bytes tasks/set_motd/howtos/images/img7.png | Bin 0 -> 32530 bytes tasks/set_motd/howtos/images/img8.png | Bin 0 -> 17532 bytes tasks/set_motd/howtos/images/img9.png | Bin 0 -> 23007 bytes tasks/set_motd/howtos/images/second.png | Bin 0 -> 25542 bytes tasks/set_motd/howtos/images/slika3.png | Bin 0 -> 21635 bytes tasks/set_motd/howtos/images/slika4.png | Bin 0 -> 17317 bytes tasks/set_motd/howtos/si/index.html | 46 +++++++++++++++++ tasks/set_motd/task.py | 86 ++++++++++++++++++++++++++++++++ 19 files changed, 176 insertions(+) create mode 100644 tasks/set_motd/howtos/en/index.html create mode 100644 tasks/set_motd/howtos/images/first.png create mode 100644 tasks/set_motd/howtos/images/img1.png create mode 100644 tasks/set_motd/howtos/images/img10.png create mode 100644 tasks/set_motd/howtos/images/img11.png create mode 100644 tasks/set_motd/howtos/images/img12.png create mode 100644 tasks/set_motd/howtos/images/img2.png create mode 100644 tasks/set_motd/howtos/images/img3.png create mode 100644 tasks/set_motd/howtos/images/img4.png create mode 100644 tasks/set_motd/howtos/images/img5.png create mode 100644 tasks/set_motd/howtos/images/img6.png create mode 100644 tasks/set_motd/howtos/images/img7.png create mode 100644 tasks/set_motd/howtos/images/img8.png create mode 100644 tasks/set_motd/howtos/images/img9.png create mode 100644 tasks/set_motd/howtos/images/second.png create mode 100644 tasks/set_motd/howtos/images/slika3.png create mode 100644 tasks/set_motd/howtos/images/slika4.png create mode 100644 tasks/set_motd/howtos/si/index.html create mode 100644 tasks/set_motd/task.py (limited to 'tasks/set_motd') diff --git a/tasks/set_motd/howtos/en/index.html b/tasks/set_motd/howtos/en/index.html new file mode 100644 index 0000000..2987cc5 --- /dev/null +++ b/tasks/set_motd/howtos/en/index.html @@ -0,0 +1,44 @@ + + + + set_motd + + + +

set_motd

Purpose of the exercise

How to create user? How to edit a file? How to connect to anoter computer using ssh? How to find out the computer IP address?

Brief description

Set up two virtual machines, set MOTD. Connect using ssh.

+ +

How To

+ +

Create two virtual machines, Student(student-console) and Test(SimpleArbiterDhcpGw)
Change the network settings to both virtual machines. SimpleArbiterDhcpGw: Adapter 1 set it to NAT for internet access, Adapter 2 to internal network for local network. + Student: Adapter1 set it to "internal-network" so it is in the same domestic network as SimpleArbiterDhcpGw.
Login on Student
On Student(student-console) create a new user (with "adduser username", as the task demands of you ( eg. marjankoral19 ), with a custom password.
In Student(student-console) open interfaces file ( nano /etc/network/interfaces ) and set the IP
+
How to use the nano text editor
+
+ 1.) Open the nano editor with the command nano, which is followed by the path and name of the file. Example: nano /etc/myfile. If the file doesn't exist, the file will be created by the editor.
+ 2.) To move in the editor, we use the arrow keys, backspace is used for deleting.
+ 3.) To save a file press the combination of keys ctrl + O.
+ 4.) To exit the editor press the combination of keys ctrl + X. The editor will ask you, if you really want to exit, you can answer with y (yes ) or with n ( no ).
+ 5.) To cut a line press the combination of keys ctrl + K.
+ 6.) To paste a line press the combination of keys ctrl + U.
+ 7.) To search over a document press the combination of keys ctrl + W and then enter the search string. +
We can check which interface belongs to which adapter in Virtual-box with MAC address. Run ifconfig command and compare the HWaddr value with the value in the Virtual-box ( settings => network => adapter => Mac address )
Then edit the /etc/motd (eg. with nano editor like this: "nano /etc/motd"), file with the specified string. (eg. "Not for Human consumption" )
For testing, login with the test user into Test(SimpleArbiterDhcpGw)
Then connect to the Student with ssh, using the user marjankoral19 - ssh marjankoral@ip.
If the login was successful, the Message of the day should apear.
To run Kpov_judge, login onto SimpleArbiterDhcpGw, find and run the file test_task.py ( with ./test_task.py as all other scripts )
A window appears as we can see on the image above, then press Enter, enter your username ( eg. dr6784@student.uni-lj.si ), password, task name (eg. 01-preparation-set_motd), enter the string we should get in motd, enter the username and password of a user on Student(student-console)(eg. marjankoral19), the IP of Student(student-console), and after a brief moment we should get the result.

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set_motd

Namen vaje

Kako se ustvari uporabnik? Kako se popravi datoteka? Kako se s pomočjo ssh +povežemo na drug racunalnik? Kako ugotovimo IP naslov računalnika?

+ +

Naloga na hitro

Postavi 2 navidezna računalnika, nastavi MOTD. Poveži se preko ssh.

+ +

Podrobna navodila

+ +

Ustvari dva navidezna računalnika, računalnik Student(student-console) ter računalnik Test(SimpleArbiterDhcpGw)
Spremeni omrežne nastavitve obema navideznima računalnikoma, SimpleArbiterDhcpGw: Adapter 1 na NAT za dostop do interneta, Adapter 2 na "internal network" za lokalno omrežje, + Student: Adapter1 na internal-network, da je v enakem omrežju kot SimpleArbiterDhcpGw.
Prijavi se na računalniku Student.
Na računalniku Student(student-console) ustvari novega uporabnika (z ukazom "adduser imeuporabnika"), kot to od tebe zahteva naloga (npr. marjankoral19), geslo določi sam.
Računalnik Student, odpri datoteko interfaces ( nano /etc/network/interfaces ), ter nastavi IP.

Kako se uporablja nano urejavalnika besedila:

+ 1.) Urejvalnik Nano odpremo z ukazom nano, kateremu sledi ime datoteke. Primer: nano /etc/mojadatoteka. Če datoteka ne obstaja jo bo ustvaril urejevalnik.
+ 2.) Po urejevalniku se premikamo s smernimi puščicami, brišemo s tipko backspace.
+ 3.) Za shranjevanje dokumenta pritisnemo kombinacijo tipk ctrl + O
+ 4.) Za izhod iz urejevalnika pritisnemo kombinacijo tipk ctrl + X. Pri tem nas urejevalnik upraša, če želimo shraniti spremembe. Odgovorimo z y (yes, ja ) ali z n ( no, ne ).
+ 5.) Za izrez vrstice uporabimo kombinacijo tipk ctrl + K.
+ 6.) Za lepljenje vrstice se uporablja kombinacija tipk ctrl + U.
+ 7.) Za iskanje po besedilu uporabimo kombinacijo tipk ctrl + W, nakar vnesemo iskani niz in pritisnemo tipko enter. +

Kateri vmesnik (npr. eth0) spada pod kateri adapter (npr. Adapter1 ), lahko preverimo s strojnimi naslovi. Na računalniku zaženemo ukaz ifconfig, pogledamo HWaddr vrednost ter jo primerjamo z vrednostjo v Virtual-boxu (nastavitve => omrežja => adapter => MAC address
Nato spremeni datoteko /etc/motd (z urejevalnikom nano, primer uporabe: "nano /etc/motd"), ter zamenjaj niz z ustreznim nizom kot to od tebe zahteva naloga ( npr. "Not for Human consumption" )
+
Za testiranje se s testnim uporabniškim imenom prijavi na prvem računalniku. (SimpleArbiterDhcpGw)
Nato se preko ssh poveži na računalnik Student z uporabniškim imenom marjankoral19 - ssh marjankoral19@ip.
Po uspešni prijavi se bi moralo izpisati motd sporočilo.
Kpov_judge poženemo tako da se prijavimo na računalniku SimpleArbiterDhcpGw, najdemo datoteko test_task.py ter jo poženemo ( z ./test_task.py kot se poganjajo vse skripte )
Pojavi se nam okno kot ga vidimo zgoraj, nato pa pritisnemo tipko Enter, vnesemo svoje uporabniško ime ( npr. dr6784@student.uni-lj.si ), geslo, ime naloge (npr. 01-preparation-set_motd), vnesemo niz ki bi se nam moral prikazati, vnesemo ime uporabnika na računalniku Student (npr. marjankoral19) ter njegovo geslo, ip računalnika študent, nato pa po kratkem premoru dobimo rezultat.

+ + + \ No newline at end of file diff --git a/tasks/set_motd/task.py b/tasks/set_motd/task.py new file mode 100644 index 0000000..89b78f6 --- /dev/null +++ b/tasks/set_motd/task.py @@ -0,0 +1,86 @@ +instructions = { + 'si': '''\ +

+Ustvari dva navidezna računalnika - imenujmo ju arbiter in student. +Na računalniku student ustvarite uporabnika z uporabniškim imenom {{peer_user}}. IP navideznega računalnika student ter geslo za uporabnika {{peer_user}} nastavite sami. + +

+Poskrbite, da se bo v sporočilu, ki se ob prijavi izpiše na računalniku student, pojavil niz + +

{{niz}}

+ +

+Temu sporočilu v angleščini rečemo message of the day oziroma MOTD. Ocenjevalni program pričakuje, da se bo ob koncu prijave pojavila ukazna vrstica oblike + +

username@hostname:~$

+ +Pazite, da se bo takšna vrstica pojavila šele po nizu, ki ste ga dobili v teh navodilih. + ''', + 'en': '''\ +

+Create two virtual machines named arbiter and student. On student, create a user with the username {{peer_user}}. Set the IP of student and the password for {{peer_user}} yourself. + +

+Set the message of the day (MOTD) on student to + +

{{niz}}

+ +

+This is the message which is displayed when you log in. The grading system expects that after login a prompt similar to + +

username@hostname:~$

+ +

+appears. Make sure that this line shows up only after the string you got in these instructions. +''' +} + +computers = { + 'arbiter': { + 'disks': [{'name': 'dhcp-gw'}], + 'flavor': 'm1.tiny', + 'network_interfaces': [{'network': 'net1'}, {'network': 'test-net'}], + 'config_drive': True, + 'userdata': {'string': "#!/bin/bash\nsed -i '/cloud/d' /etc/fstab\npoweroff &\n"} + }, + 'student': { + 'disks': [{ 'name': 'console'}], + 'flavor': 'm1.tiny', + 'network_interfaces': [{'network': 'net1'}], + 'config_drive': True, + 'userdata': {'string': "#!/bin/bash\nsed -i '/cloud/d' /etc/fstab\npoweroff &\n"} + } +} + +networks = { 'net1': {'public': False}, 'test-net': {'public': True} } + +params_meta = { + 'peer_ip': {'descriptions': {'si': 'IP računalnika', 'en':'IP'}, 'w': True, 'public': True, 'type': 'IP', 'generated': False}, + 'peer_user': {'descriptions': {'si': 'ime uporabnika', 'en':'Username'}, 'w': False, 'public': True, 'type': 'username', 'generated': True}, + 'peer_passwd': {'descriptions': {'si': 'geslo uporabnika', 'en': 'Password'}, 'w': True, 'public': True, 'type': 'alnumstr', 'generated': False}, + 'niz': {'descriptions':{'si': 'niz, ki naj se v motd pokaže', 'en': 'The string which should be displayed in the MOTD'}, 'w': False, 'public': True, 'type': 'short_text', 'generated': True}, +} + +def task(peer_ip, peer_user, peer_passwd, niz): + "Check whether ssh works and return the MOTD." + return kpov_util.ssh_test(peer_ip, peer_user, peer_passwd) + +def gen_params(user_id, params_meta): + return kpov_util.default_gen(user_id, params_meta) + +def task_check(results, params): + niz = params['niz'] + score = 0 + hints = [] + if results['ssh'] is True: + score += 4 + if niz in results['motd']: + score += 6 + else: + hints += ['wrong motd:\n' + results['motd'] + '\n'] + else: + hints += ['ssh failed: ' + results['ssh']] + return score, hints + +def prepare_disks(templates, task_params, global_params): + write_default_config(templates['dhcp-gw'], global_params) -- cgit v1.2.1

set_motd

Purpose of the exercise

Brief description

How To

How to use the nano text editor

set_motd

Namen vaje

Naloga na hitro

Podrobna navodila

Kako se uporablja nano urejavalnika besedila: