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Tutorial English matlab djpegxx bug — problem calling ghostscript: system error - GNU/Linux
matlab djpegxx bug — problem calling ghostscript: system error

Recently, I wrote Matlab code that does some processing, plots the results and saves the plots as compressed JPEGs. When I run it on a cluster as part of a batch job I got the following error: "Problem calling GhostScript. System returned error". ...

Tutorial English Change default apache port number for HTTP Server - GNU/Linux
Change default apache port number for HTTP Server

My friend just requested a post for me to change the apache port number for HTTP Server, and now I will give you all a tutorial about this stuff. We all know that as default the Apache HTTP Server will ping to port number 80 . What we have to do when a situation...

Tutorial English Search previous commands typed - GNU/Linux
Search previous commands typed

If you want to see a collection of your previous commands used in Linux, you can always type ‘history’ for a listing of them. You can even search through history by grepping for the command you’re looking for, but then you’d have to copy/paste it into the terminal to run it...

Tutorial English Bash ShellShock bug – Find out if you’ve been “tested” - GNU/Linux
Bash ShellShock bug – Find out if you’ve been “tested”

We’ve seen the articles about how to find out if you’re vulnerable to the bash shellshock bug, we’ve also seen the articles on how to patch your system. What I’ll show you is how to find out if people are testing your system. ...

Tutorial English CentOS 7 / RHEL 7 – Open ports - GNU/Linux
CentOS 7 / RHEL 7 – Open ports

One of the most common things I do on Linux machines is open ports to test software in a development environment. In the past, that meant trying to remember (and Googling) cryptic iptables commands. Now, CentOS 7 and Red Hat 7 include the nicer firewall-cmd tool to configure the firewall. ...

Tutorial English Send mail via the command line - GNU/Linux
Send mail via the command line

During your stint as a Linux administrator, you’ll likely want to send mail from the server you are working on. Whether its sending a quick test message or emailing yourself a file, it can be done quickly and easily. First of all, you might have to install the mail program to...

Tutorial English Install ZFS in RHEL, CentOS, Alma Linux, Rocky Linux - GNU/Linux
Install ZFS in RHEL, CentOS, Alma Linux, Rocky Linux

Packages for RHEL and CentOS-based distributions in the OpenZFS repository. To simplify installation, a zfs-release package is provided that includes a zfs.repo configuration file and a public signing key. All official OpenZFS packages are signed using...

Tutorial Romana Instalare ZFS in RHEL, CentOS, Alma Linux, Rocky Linux - GNU/Linux
Instalare ZFS in RHEL, CentOS, Alma Linux, Rocky Linux

Pachetele pentru distributiile bazate pe RHEL si CentOS din depozitul OpenZFS. Pentru a simplifica instalarea , este furnizat un pachet zfs-release care include un fisier de configurare zfs.repo si o cheie de semnare publica. Toate pachetele oficiale...

Tutorial Romana Despre Denial of Service - sumar informatii despre cele mai raspandite metode de atac DoS, caile de prevenire si monitorizare - GNU/Linux
Despre Denial of Service - sumar informatii despre cele mai raspandite metode de atac DoS, caile de ...

DoS inseamna aici DENIAL OF SERVICE, (in topul cuvintelor cheie de pe search-engine-uri pe langa binecunoscutele "mp3" si "sex"). Ce este "Denial of Service"? O traducere...

Tutorial English About Denial of Service - summary information on the most common DoS attack methods, prevention and monitoring - GNU/Linux
About Denial of Service - summary information on the most common DoS attack methods, prevention and ...

DoS here means DENIAL OF SERVICE, (in the top of the keywords on search engines besides the well-known "mp3" and "sex"). What is Denial of Service? A motes-a-motes translation I don't think would...

Tutorial Romana Cum vezi cat spatiu pe disk ai utilizat in Linux - GNU/Linux
Cum vezi cat spatiu pe disk ai utilizat in Linux

1) df - Disk Free - ne arata utilizarea file-system (partitii): [root@www ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup-lv_root 29G 2.6G 25G 10% / tmpfs 495M 0 495M 0% /dev/shm /dev/sda1 477M 159M 293M 36% /boot ...

Tutorial Romana Cum creezi o oglinda publica-oficiala  pentru AlmaLinux in trei pasi - GNU/Linux
Cum creezi o oglinda publica-oficiala pentru AlmaLinux in trei pasi

Oglinzile unui proiect, sunt extrem de importante pentru a oferi o infrastructura rapida si fiabila. Puteti crea o oglinda publica AlmaLinux in 3 pasi simpli: Pasul 1: Asigurati-va ca aveti suficient spatiu liber: 150 GB...

Tutorial English How to create a public-official mirror for AlmaLinux in three steps - GNU/Linux
How to create a public-official mirror for AlmaLinux in three steps

The mirrors of a project are extremely important to provide a fast and reliable infrastructure. You can create an AlmaLinux public mirror in 3 easy steps: Step 1: Make sure you have enough free space: 150 GB is the minimum, but we recommend...

Tutorial Romana Cum sa adaugi un disk raw pentru Oracle ASM - GNU/Linux
Cum sa adaugi un disk raw pentru Oracle ASM

Sunt convins ca va-ti lovit de situatia in care un disk raw folosit de o baza de date Oracle (ASM si cluster) s-a umplut si cei de la base de date au cerut o extindere de disk sau adaugarea unui LUN (raw disk) nou. In asemenea situatii este recomandat sa se adauge un disk raw nou si sa...

Tutorial English How to add a raw disk for Oracle ASM - GNU/Linux
How to add a raw disk for Oracle ASM

I am convinced that you were struck by the situation in which a raw disk used by an Oracle database (ASM and cluster) was filled and those in the database requested a disk expansion or the addition of a new LUN (raw disk). In such situations it is recommended to add a new raw disk and NOT to...

Tutorial Romana Cum sa golesti memoria virtuala (SWAP) in Linux - GNU/Linux
Cum sa golesti memoria virtuala (SWAP) in Linux

Se intampla deseori sa avem memorie RAM libera (free sau cached) insa memoria virtuala SWAP sa fie ocupata. Putem sa golim memoria swap astfel: swapoff -a Asteptam cateva minute (depinde cat de mult swap este folosit). Eventual putem sa rulam aceasta...

Tutorial English How to empty virtual memory (SWAP) in Linux - GNU/Linux
How to empty virtual memory (SWAP) in Linux

It often happens that we have free RAM (free or cached) but the SWAP virtual memory is occupied. We can empty the swap memory like this: swapoff -a We wait a few minutes (depending on how much swap is used). Eventually we can run this command in backgroud or...

Tutorial Romana Slackware Hardware Abstraction Layer - GNU/Linux
Slackware Hardware Abstraction Layer

Implementarea HAL in Slackware Linux este descrisa in CHANGES_AND_HINTS.TXT: The /dev/cdrom line in /etc/fstab is commented out by default, as it interferes with HAL. HAL defaults to on, so if you do not wish to use it, you will need to chmod -x...

Tutorial Romana Tutorial instalare counter-strike 1.6 pe Linux cu wine - GNU/Linux
Tutorial instalare counter-strike 1.6 pe Linux cu wine

Pentru inceput aveti nevoie de un kit de counter-strike 1.6 cum ar fi: counter-striker1.6.exe Aveti nevoie ca driverele placii video sa fie instalate pentru ca jocul sa mearga cat mai bine. Atentie! Daca nu aveti driverele instalate jocul va merge numai in...

Tutorial English Gnome 40 has been released and can be tested in Gnome OS - GNU/Linux
Gnome 40 has been released and can be tested in Gnome OS

To try the latest version of Linux Gnome Nightly OS v40, you can use Gnome Boxes. Here are some simple steps: Download the latest Gnome OS Nightly - Here is the link to download it directly.

Tutorial Romana Gnome 40 a fost lansat si poate fi testat in Gnome OS - GNU/Linux
Gnome 40 a fost lansat si poate fi testat in Gnome OS

Pentru a incerca cea mai recenta versiune a sistemului de operare Linux Linux Gnome Nightly OS v40, puteti folosi Gnome Boxes. Iata cativa pasi simpli: Descarcati cel mai recent Gnome OS Nightly - Iata linkul pentru a-l descarca...

Tutorial Romana Cum se instaleaza Automatix pe Ubuntu, Kubuntu, si Xubuntu - GNU/Linux
Cum se instaleaza Automatix pe Ubuntu, Kubuntu, si Xubuntu

Automatix este o interfata grafica pentru instalarea automata a celor mai utilizate aplicatii din Ubuntu/Kubuntu/Xubuntu. Nota: Inainte de a instala este bine sa stiti ca unele codecuri incluse pot fi interzise in unele tari. Sunteti responsabil sa va asugurati ca...

Tutorial Romana Recompilarea kernelului in OpenBSD - GNU/Linux
Recompilarea kernelului in OpenBSD

Sunt cateva motive pentru a-ti compila un kernel propriu, diferit de cel standard. 1. Kernelul standard suporta o multime de hardware, si ocupa degeaba memoria sistemului. 2. Vreti sa incercati optiuni care nu sunt incluse in kernelul default, sau sa scoateti optiuni de care...

Tutorial Romana Cum instalezi Microsoft Teams pe SolusOS - GNU/Linux
Cum instalezi Microsoft Teams pe SolusOS

Pentru inceput sa lamurim cateva lucruri. Aceasta aplicatie necesita un abonament Office 365 sau un abonament gratuit . Aceasta impachetare nu este verificata, nu este afiliata sau acceptata de Microsoft. Optiunea 1 - Flatpak Pentru a instala...

Tutorial English How to install Microsoft Teams on SolusOS - GNU/Linux
How to install Microsoft Teams on SolusOS

Let's start by clarifying a few things. This application requires an Office 365 subscription or a free subscription . This packaging is not verified, affiliated or accepted by Microsoft. Option 1 - Flatpak To install Flatpak, run in a...