GNU / Linux

Rezolvarea problemelor tehnice, ultimele știri din domeniu și cele mai interesante site-uri.
User avatar
marvas
vrășmaș mârșav
Posts: 3661
Joined: 3 Mar 2014, 01:21

Re: GNU / Linux

Post by marvas »

uite ce usor se lucreaza cu Linux. Si chester se plangea ca i-a luat 2 zile sa-si puna un wallpaper.
User avatar
sebas
Hammer Haunt
Posts: 1581
Joined: 2 Mar 2014, 15:50

Re: GNU / Linux

Post by sebas »

Eu pe calculatorul de servici am trecut la Linux de ani buni deja. Usurinta si puterea bash-ului ma face sa economisesc jumate din timpul pe care altfel l-as pierde aiurea in Windows.

De exemplu: trebuie sa faci RDP sau SSH intr-o lista de 100 de servere? Iti faci frumos un alias simplu pentru fiecare, de genul:

Code: Select all

alias serverul-de-haxing="rdesktop -u Administrator -p parola111-g 93% -r clipboard:CLIPBOARD -r disk:sebas=/home/sebas/ 10.0.0.1"
Apoi de fiecare data cand trebuie sa intri in serverul respectiv tot ce trebuie sa faci este sa scrii in terminal:

Code: Select all

serverul-de-haxing
Ca sa nu mai vorbim de cat de puternice sunt niste comenzi precum grep sau sed. Prin comparatie cand trebuie sa fac ceva in PowerShell, imi vine sa-mi iau campii. Pentru orice trebuie sa stai sa citesti si sa cauti pe net minim o ora.


Anyway, nu vad de ce ar folosi cineva Ubuntu in loc de Mint. Ubuntu are interfata de tableta, nu PC.
dump CHA
User avatar
cg1700
Hammer Haunt
Posts: 2328
Joined: 27 Apr 2014, 12:54

Re: GNU / Linux

Post by cg1700 »

Ubuntu are interfata de tableta
Oh man, imi aduc aminte prima mea experienta cu Unity. Upgadasera astia calculatoarele de la facultate si mi-a luat vreo 10 minute sa gasesc terminalul.
Image
User avatar
stef
Hammer Haunt
Posts: 1071
Joined: 6 Mar 2014, 11:40
Location: Bucuresti

Re: GNU / Linux

Post by stef »

Asa e, daca stii ce ai de facut si ce sa cauti, terminalul de Linux e the best of. Eu la un moment dat am avut nevoie in RHEL sa ma conectez ssh passwordless pe un server si am folosit manevra asta:

Code: Select all

[user]$ ssh-keygen -t rsa
[user]$ ssh-copy-id -i ~/.ssh/id_rsa.pub IP/user@example.com
Image
User avatar
zme-ul
cel rau
Posts: 3652
Joined: 24 Mar 2014, 05:20

Re: GNU / Linux

Post by zme-ul »

sebas wrote:Anyway, nu vad de ce ar folosi cineva Ubuntu in loc de Mint
tu te gandesti doar la distibutia de baza; exista multe alte distibutii bazate pe core-ul Ubuntu si customizate
eu folosesc Lubuntu, ce vine cu desktop LDXE

Mintu de care zici are distributii bazate atat pe Ubuntu cat si Debian, plus ca vin cu doua desktopuri diferite: Cinnamon si MATE
Pentru orice trebuie sa stai sa citesti si sa cauti pe net minim o ora.
si reciproca e valabila - acelasi lucru il poate spune un user de Win cand trece pe nix
人は地獄を作った
User avatar
Jaunty
Site Admin
Posts: 1808
Joined: 1 Mar 2014, 17:46
Contact:

Re: GNU / Linux

Post by Jaunty »

zme-ul wrote:you can break into a Linux system (Grub2) by pressing BackSpace 28 times - Ubuntu, Red Hat and Debian already patched
The researchers, Hector Marco and Ismael Ripoll from the Cybersecurity Group at Polytechnic University of Valencia, found that it’s possible to bypass all security of a locked-down Linux machine by exploiting a bug in the Grub2 bootloader. Essentially, hitting backspace 28 times when the machine asks for your username accesses the “Grub rescue shell,” and once there, you can access the computer’s data or install malware.
Image

http://hmarco.org/bugs/CVE-2015-8370-Gr ... ypass.html
Nici nu știam că Grub poate fi parolat. Într-adevăr, dacă BIOS-ul nu e înlocuit cu un coreboot sau libreboot, partiția /boot trebuie să rămână necriptată, așa că atacatorul are un punct excelent de pornire chiar dacă-ți criptezi restul sistemului. Numai că trebuie să aibă acces fizic la calculator, caz în care poate fenta oricum parola Grub-ului, fără niciun exploit. Exploit-ul ăsta e cam inutil în majoritatea situațiilor. Still, nice find.

În altă ordine de idei, până acum cunosc 4 puncte în care procesul de boot poate fi întrerupt de password prompt: BIOS, bootloader, criptare și OS login. Mai sunt? Sau patru parole la boot sunt suficiente?
User avatar
sebas
Hammer Haunt
Posts: 1581
Joined: 2 Mar 2014, 15:50

Re: GNU / Linux

Post by sebas »

zme-ul wrote:Mintu de care zici are distributii bazate atat pe Ubuntu cat si Debian, plus ca vin cu doua desktopuri diferite: Cinnamon si MATE

si reciproca e valabila - acelasi lucru il poate spune un user de Win cand trece pe nix
Da, ai dreptate, Mint-ul e fork de Ubuntu. Cand ziceam de Ubuntu ca are interfata comic de anapoda ma refeream la distributia Canonical care vine cu Unity. Eu unul am incercat multe distributii, in principal forkuri de Ubuntu pentru ca sunt cele mai dezvolate pe partea de documentatie si user support, si am gasit ca Mint+Mate e varianta care mi-a placut cel mai mult pentru un workstation. La servici toate serverele linux sunt pe CentOS sau RHEL si imi par deasemenea faorte faine ca distributii.

Nu sunt de acord insa legat de timpul petrecut pentru a invata sa fii sysadmin pe Windows vs Linux. La servici trebuie sa fac foarte mult system administration pe ambele, vulnerability management, automation, scripting, migrari de pe servere fizice in Amazon AWS etc..

Orice, absolut ORICE task este mult mai incurcat si anapoda pe Windows.

Usurinta cu care poti folosi un OS versul altul se vede cred cel mai bine la doua tipuri de taskuri: cand trebuie sa migrezi un server dintr-un data center intr-altul sau cand trebuie sa iei un server pentru care ai zero documentatie si sa-l intelegi. Pe linux efectiv poti face toate astea cu o mana de comenzi, pe care le-ai invatat intr-o ora, doua.
dump CHA
User avatar
zme-ul
cel rau
Posts: 3652
Joined: 24 Mar 2014, 05:20

Re: GNU / Linux

Post by zme-ul »

Unity’s controversial online search feature is being disabled by default in Ubuntu 16.04 LTS, due for release in April
Ubuntu Online Search Controversy

‘The future of online search free software stalwart Richard Stallman to call Ubuntu ‘spyware’.

Boiling over since 2012, the open-source community was quick to express concerns about user privacy in the wake of Ubuntu Amazon integration. Concerns continued with the rollout of the comprehensive ‘Smart Scopes Service’ a year later.

The Electronic Frontier Foundation also shared its concerns in a series of blog posts and suggested that Canonical make the feature opt-in. Privacy International went further than most by awarding Ubuntu’s makers a ‘Big Brother award‘ for work on, quote: “invading personal privacy”.

Canonical maintains that the data collected through Unity’s online search feature is anonymised and “not user-identifiable”.

In blog post from 2013 the company explains that it “make users aware of what data will be collected and which third party services will be queried through a notice right in the Dash, and we only collect data that allows us to deliver a great search experience to Ubuntu users.”
人は地獄を作った
User avatar
Waaagh!
Forum Warlord
Posts: 5233
Joined: 2 Mar 2014, 16:23

Re: GNU / Linux

Post by Waaagh! »

"great search experience" :lol:

Ne-am dat naibii, si cautatul de software trebuie sa fie o experienta. In curand vine si in 3D. :lol:
NO COVER. ALL MAN.
User avatar
cg1700
Hammer Haunt
Posts: 2328
Joined: 27 Apr 2014, 12:54

Re: GNU / Linux

Post by cg1700 »

we only collect data that allows us to deliver a great search experience to Ubuntu users
That's what all spyware says.

Oricum Ubuntu a cam devenit crap de cand au bagat Unity.
Image
User avatar
sebas
Hammer Haunt
Posts: 1581
Joined: 2 Mar 2014, 15:50

Re: GNU / Linux

Post by sebas »

Nu "cam", chiar e o mizerie. Cine-a gandit interfata aia n-are nicio treaba cu utilizarea eficienta a unui calculator.
dump CHA
User avatar
zme-ul
cel rau
Posts: 3652
Joined: 24 Mar 2014, 05:20

Re: GNU / Linux

Post by zme-ul »

sebas wrote:Nu "cam", chiar e o mizerie. Cine-a gandit interfata aia n-are nicio treaba cu utilizarea eficienta a unui calculator.
a fost gandita pt touch, ca si mizeria de Metro din W8
人は地獄を作った
User avatar
cg1700
Hammer Haunt
Posts: 2328
Joined: 27 Apr 2014, 12:54

Re: GNU / Linux

Post by cg1700 »

Ce fel de dispozitive mobile folosesc ubuntu ca eu n-am vazut vreo unul pana acum.
Image
User avatar
TG
Dremora Lord
Posts: 4947
Joined: 1 Mar 2014, 20:08
Contact:

Re: GNU / Linux

Post by TG »

Păi nu trebuie să fie dispozitiv mobil ca să aibă touchscreen.
"Screams of a billion murdered stars give life to the night's peace. While we cling in desperation to the few spinning stones we call worlds."

Image
User avatar
sebas
Hammer Haunt
Posts: 1581
Joined: 2 Mar 2014, 15:50

Re: GNU / Linux

Post by sebas »

Laptops with touchscreens. Pentru că Facebook și Click!
dump CHA
User avatar
joonior_bmf
Gravity e un film misto
Posts: 6539
Joined: 3 Mar 2014, 18:32
Contact:

Re: GNU / Linux

Post by joonior_bmf »

cg1700 wrote:Ce fel de dispozitive mobile folosesc ubuntu ca eu n-am vazut vreo unul pana acum.
http://www.ubuntu.com/phone/devices
User avatar
zme-ul
cel rau
Posts: 3652
Joined: 24 Mar 2014, 05:20

Re: GNU / Linux

Post by zme-ul »

Beware of hacked ISOs if you downloaded Linux Mint on February 20th!
I’m sorry I have to come with bad news.

We were exposed to an intrusion today. It was brief and it shouldn’t impact many people, but if it impacts you, it’s very important you read the information below.

What happened?

Hackers made a modified Linux Mint ISO, with a backdoor in it, and managed to hack our website to point to it.

Does this affect you?

As far as we know, the only compromised edition was Linux Mint 17.3 Cinnamon edition.

If you downloaded another release or another edition, this does not affect you. If you downloaded via torrents or via a direct HTTP link, this doesn’t affect you either.

Finally, the situation happened today, so it should only impact people who downloaded this edition on February 20th.

How to check if your ISO is compromised?

If you still have the ISO file, check its MD5 signature with the command “md5sum yourfile.iso” (where yourfile.iso is the name of the ISO).

The valid signatures are below:

6e7f7e03500747c6c3bfece2c9c8394f linuxmint-17.3-cinnamon-32bit.iso
e71a2aad8b58605e906dbea444dc4983 linuxmint-17.3-cinnamon-64bit.iso
30fef1aa1134c5f3778c77c4417f7238 linuxmint-17.3-cinnamon-nocodecs-32bit.iso
3406350a87c201cdca0927b1bc7c2ccd linuxmint-17.3-cinnamon-nocodecs-64bit.iso
df38af96e99726bb0a1ef3e5cd47563d linuxmint-17.3-cinnamon-oem-64bit.iso
If you still have the burnt DVD or USB stick, boot a computer or a virtual machine offline (turn off your router if in doubt) with it and let it load the live session.

Once in the live session, if there is a file in /var/lib/man.cy, then this is an infected ISO.

What to do if you are affected?

Delete the ISO. If you burnt it to DVD, trash the disc. If you burnt it to USB, format the stick.

If you installed this ISO on a computer:

Put the computer offline.
Backup your personal data, if any.
Reinstall the OS or format the partition.
Change your passwords for sensitive websites (for your email in particular).
Is everything back to normal now?

Not yet. We took the server down while we’re fixing the issue.

Who did that?

The hacked ISOs are hosted on 5.104.175.212 and the backdoor connects to absentvodka.com.

Both lead to Sofia, Bulgaria, and the name of 3 people over there. We don’t know their roles in this, but if we ask for an investigation, this is where it will start.

What we don’t know is the motivation behind this attack. If more efforts are made to attack our project and if the goal is to hurt us, we’ll get in touch with authorities and security firms to confront the people behind this.
人は地獄を作った
User avatar
McWilliams
Self-righteous bastard
Posts: 4601
Joined: 2 Mar 2014, 17:23
Location: Galati
Contact:

Re: GNU / Linux

Post by McWilliams »

A venit PC-ul. Are Linux Mint Cinnamon pe el. Nu ar fi neaparat capatul lumii, doar ca nu reusesc sa-l leg la conexiunea de internet de la RDS.

Am utilizat puterea internetului pentru a ma informa si am creat o conexiune prin DSL (dupa cum e recomandat) cu user-ul si parola din contractul RDS. Problema este ca, spre deosebire de alte conexiuni incercate si care imi aparea in pop-up (inactive, dar prezente in lista), conexiunea DSL nu imi aduce nimic in tool-bar, dreapta jos; si nu iesea din stadiul "never used". Am incercat si cu cablu direct, si cu cablu de la router. Ca o nota separata, nici macar nu recunoaste adresa router-ului pentru a accesa/configura ceva la router.

Conexiunea stiu sa o creez, doar ca PC-ul pare ca nu recunoaste dispozitivul de la celalalt capat al cablului. How am I screwing up this one?
Candva, pe aici, trecea un brutalistu...
O vorba de duh din Warhammer 40'000
https://www.youtube.com/watch?v=cO3MttgvHUY
User avatar
zme-ul
cel rau
Posts: 3652
Joined: 24 Mar 2014, 05:20

Re: GNU / Linux

Post by zme-ul »

DSL? what the shit?! da' ce contract ai matale acolo?
conx RDSului sunt PPPoE si asta te intereseaza doar cand bagi WANul direct in PC

cu router, daca e cofigurat corect si cu serverul DHCP pornit, nu ar trebui sa faci nimic altceva decat sa infigi cablul in PC

---

DSLul e strict pt conex prin linie telefonica
人は地獄を作った
User avatar
McWilliams
Self-righteous bastard
Posts: 4601
Joined: 2 Mar 2014, 17:23
Location: Galati
Contact:

Re: GNU / Linux

Post by McWilliams »

When you google "RDS conexiune internet linux" (sau ceva in genul), chestii ca asta apar la rezultate. Si sunt prea multe ca sa fie prostii, cred eu.
Candva, pe aici, trecea un brutalistu...
O vorba de duh din Warhammer 40'000
https://www.youtube.com/watch?v=cO3MttgvHUY
Post Reply

Return to “Software & Internet”

Who is online

Users browsing this forum: No registered users and 7 guests