Archivo de la categoría: Nix

How To Install Linux, Nginx, Mariadb 10.x, PHP (LEMP) stack On RHEL/CentOS 8

dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm on RHEL 8 it is required to also enable the codeready-builder-for-rhel-8-*-rpms repository since EPEL packages may depend on packages from it: subscription-manager repos –enable «codeready-builder-for-rhel-8-$(arch)-rpms» Installing MariaDB Server 10.4 o deploy MariaDB Community Server 10.4 on RHEL 8 or CentOS 8, first download and use the mariadb_repo_setup script to configure the MariaDB repositories for… Read More: How To Install Linux, Nginx, Mariadb 10.x, PHP (LEMP) stack… »

How To Install Linux, Nginx, Mariadb 10.x, PHP (LEMP) stack On CentOS 7

Add the CentOS 7 EPEL repository, run the following command: Installing MariaDB Server 10.4 o deploy MariaDB Community Server 10.4 on RHEL 7 or CentOS 7, first download and use the mariadb_repo_setup script to configure the MariaDB repositories for YUM: $ sudo yum install wget $ wget https://downloads.mariadb.com/MariaDB/mariadb_repo_setup $ chmod +x mariadb_repo_setup $ sudo ./mariadb_repo_setup To install… Read More: How To Install Linux, Nginx, Mariadb 10.x, PHP (LEMP) stack… »

Install PHP 7.4, 7.3, 7.2 on Amazon Linux 2

Confirm that the amazon-linux-extras package is installed: If the command doesn’t return any output, then install the package that will configure the repository: Install PHP 7.4, 7.3, 7.2 on Amazon Linux 2 Let’s confirm that PHP 7.x topic is available in our Amazon Linux 2 machine:https://ba81e333c7babb426e39b458bb330c84.safeframe.googlesyndication.com/safeframe/1-0-38/html/container.html As we can see all PHP 7 topics, in this example… Read More: Install PHP 7.4, 7.3, 7.2 on Amazon Linux 2 »

What SREs Can Learn from Facebook’s Largest Outage

sauce: https://rootly.io/blog/what-sres-can-learn-from-facebook-s-largest-outage?utm_source=reddit&utm_medium=blog SRE (Site Reliability Engineer).- Is an engineer whose main role is maximizing the reliability of IT systems. Facebook’s October 2021 outage was the type of event that gives SREs nightmares: A series of critical business apps crashed in minutes and remained unavailable for hours, disrupting more than 3.5 billion users around the world and costing… Read More: What SREs Can Learn from Facebook’s Largest Outage »

How to check which process is writting on FileSystem Solaris

It won’t show the actual IO operations, but you can also use the fuser utility to identify process(es) using the filesystem in any way, even those that don’t cause actual IO, or do IO in ways that can’t be traced back to a particular process (mmap() of files is one, where a file can be mmap()‘d by multiple processes): Synopsis Description… Read More: How to check which process is writting on FileSystem Solaris »

How to Delete or Clear old FMA/fmdump logs

What is Fault Management Architecture (FMA) The Oracle Solaris OS includes an architecture for building and deploying systems and servicesthat are capable of predictive self healing. The service that is the core of the Fault ManagementArchitecture (FMA) receives data related to hardware and software errors and system changes,and automatically diagnoses any underlying problem. For a hardware… Read More: How to Delete or Clear old FMA/fmdump logs »

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Change the MTU Permanently (Oracle Solaris)

Change the MTU Permanently (Oracle Solaris) Add this line in the /etc/driver/drv/i40e.conf file:default_mtu = desired-frame-size where desired-frame-size value can range from 1500 to 9706. Reboot the server. Another way to change the MTU permanently is with # dladm set-linkprop -p mtu=9706 net0.# dladm set-linkprop -p mtu=9706 net0 Change the MTU Temporarily (Oracle Solaris) Use the dladm(1M) command to modify MTUs.For example,… Read More: Change the MTU Permanently (Oracle Solaris) »

Can mount: No (the original volume has some extents online) ESXi

# esxcli storage filesystem list Mount Point Volume Name UUID Mounted Type Size Free ————————————————- ——————– ———————————– ——- —— ———– ———- /vmfs/volumes/NFS1 NFS1 7186fc7f-332db554 true NFS 0 0 /vmfs/volumes/4ff9dae8-858c7e95-12f0-000c29e8410a TestVOL 4ff9dae8-858c7e95-12f0-000c29e8410a true VMFS-5 5100273664 2183135232 /vmfs/volumes/4f27b82e-3fc1540e-bf6b-000c295da2d9 datastore1 4f27b82e-3fc1540e-bf6b-000c295da2d9 true VMFS-5 37580963840 2551185408 /vmfs/volumes/504fbcbd-1d655805-636f-000c29e8410a SSD-Local 504fbcbd-1d655805-636f-000c29e8410a true VMFS-5 7247757312 1022361600 /vmfs/volumes/4ffa2c9d-a124e5c7-39c6-000c29e841f6 SANDS1 4ffa2c9d-a124e5c7-39c6-000c29e841f6 true VMFS-5 5100273664… Read More: Can mount: No (the original volume has some extents online)… »