How to Enable Bluetooth On Linux

linux tutorial bigdba

28 November 2023   0 Comment

Recently, I needed to use bluetooth on my computer using the linux operating system, and I saw that the services were turned off, I share the steps and controls I applied as follows. You can also follow the same similar steps to give an idea in these distro’s as well: debian, ubuntu, kali, redhat, rhel6,7,8,9 […]

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Basic Usage Netcat Nmap

linux tutorial bigdba

20 November 2020   0 Comment

Netcat has become one of the indispensable tools of system administrators, network administrators and even programmers because it does its job both very simple and very efficient. It is one of the best representatives of the Unix philosophy as well, with its under-defined job well done. Install Netcat Package yum install -y nc Check if […]

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5 October 2020   0 Comment

Some apps and tools that are installed on Linux Distros, may use high Buffer/Cache RAM. As we know, High RAM consumption may cause Server Shutdown or Hang. To aviod this situation, we need to configure apps and tools first,If it does not work, we have a work-around solution as “Buffer/Cache Ram Cleaning” We can make […]

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CentOS vs Ubuntu

29 September 2020   0 Comment

Today, In this article, we will be reviewing the key features and differences betweet CentOS vs Ubuntu Linux distributions. Comparison Features   Ubuntu CentOS SYSTEM CORE Based on Debian Based on Redhat UPDATE CYCLE Often Deliberately Infrequent SECURITY Good (but requires additional configuration) Strong SUPPORT CONSIDERATIONS Excellent documentation and support community Good documentation. Small but active user […]

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SSH Login Without Password

24 September 2020   0 Comment

When we try to ssh one server to another server, It always require password. With a help of OpenSSH package, We can generate authentication keys on local machine and copy public key to the remote server. Generate a key pair on the local server Use ssh-keygen to generate authentication keys for SSH. $ ssh-keygen Install your public […]

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23 September 2020   0 Comment

When we ssh to the Linux server, If we see “X11-forwarding : x (disabled…)” as down below, We can not use Graphical Interface of Installations or tools. Therefore, we need to install “xorg-x11-server-Xorg, xorg-x11-xauth, xorg-x11-apps” packages. There will be lot of dependencies for installing these packages, make sure you install all the packages using yum. […]

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Error: Failed to download metadata for repo ‘ol8_baseos_latest’ Linux Rhel8 and Oracle linux 8

Oracle linux 8 Error

19 February 2020   0 Comment

I encountered a problem with yum repository problem on Oracle linux 8, you can produce a solution by doing the following operations. It can also cause the following issues. Incorrect date and time settings Old dnf cache available or expired Proxy address not defined or proxy address specified in /etc/dnf/dnf.conf file is incorrect cd /etc/yum.repos.d […]

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How to configure yum server in Oracle linux 5,6,7


6 December 2019   0 Comment

In this article, we will learn how to congure yum server in dierent Oracle Linux versions. YUM repository is a software package manager which allows you to easily install, update or delete RPMs. Most of the required RPM packages come along with the Linux installer CD. But! if you have internet connection, you can congure […]

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Linux Copy on – Write (COW) Dirty COW CVE-2016-5195

15 September 2019   0 Comment

First of all, Hello to everyone, I have not been writing for a long time, I wanted to return with remarkable information. Dirty Cow is known as a privilege-escalation error. Dirty Cow was named after the research of the Red Hat firm because of the copy-on-write (COW) mechanism in the Linux Kernel mechanism. ). in […]

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