Sagar Kaushik’s Post

Nagios Your IT health check! 🏥 Monitor, identify, and resolve issues before they impact your business✅ (➡️ https://www.nagios.org/ ) #Nagios #ITMonitoring #Sysadmin #DevOps #Infrastructure #ITHealth #OpenSource #MonitoringTools #NetworkMonitoring #ServerMonitoring #ApplicationMonitoring

Configuring the Remote Server for Nagios Monitoring – Setting Up a Master and Remote Server with Nagios on CentOS 7 Using Vagrant – Part 3 In this final part, we’ll set up the remote server to be monitored by the Nagios master server. This involves installing necessary software, configuring NRPE, and ensuring that the remote server is ready for monitoring. https://lnkd.in/gP2vzpRA #Devops #Nagios #vagrant

Configuring the Remote Server for Nagios Monitoring – Setting Up a Master and Remote Server with Nagios on CentOS 7 Using Vagrant – Part 3 In this final part, we’ll set up the remote server to be monitored by the Nagios master server. This involves installing necessary software, configuring NRPE, and ensuring that the remote server is ready for monitoring. https://lnkd.in/gP2vzpRA #Devops #Nagios #vagrant

We may have disk/storage constraints but sending our performance metrics to an external medium could be very helpful for future data analysis and pattern recognition work. To overcome this limitation, we can achieve a successful integration with simple tools. With Curl, Zabbix API, and a bit of bash scripting, we can collect performance metrics of our servers/VMs/containers in the desired format and, by adding a simple cron job, we can stream this data. Happy reading. #devops #zabbix #streaming #performance #bash

"Empowering IT Infrastructure: An Overview of Nagios Monitoring Solutions" 🎛 Nagios is an open-source computer system monitoring, network monitoring, and infrastructure monitoring software application. It enables organizations to monitor the availability and performance of their IT infrastructure, including servers, switches, routers, and other network devices. Nagios works by periodically polling devices and services on a network and alerting administrators when certain predefined conditions are met, such as when a service is down or when the response time exceeds a certain threshold. It provides a centralized view of the entire IT infrastructure through a web-based interface, allowing administrators to easily identify and resolve issues before they impact users or business operations. Nagios is highly customizable and extensible, allowing users to create custom plugins and scripts to monitor virtually any aspect of their IT environment. It is widely used in organizations of all sizes to ensure the reliability and performance of their IT systems #awsdevops #nagios #infrastructureascode #devopscommunity #devopsengineer #monitoringtools #monitoringsolutions #monitoringsystem #devopslearning #devopsskills #devopsengineers #devopsculture Yusufzai Jawwad Khan Full Stack Academy Nagios

It's finally here! 🥳 I have not posted on my website in quite some time but I am proud of the work I have done learning Zabbix - an amazing enterprise-class open-source monitoring solution. If you are interested in a detailed write up on how I deployed Zabbix in a test environment with Docker, check out my latest blog post on my website: https://lnkd.in/ec8ARGXj #homelab #zabbix #opensource

Setting Up a Master and Remote Server with Nagios on CentOS 7 Using Vagrant – Part 1 This guide will walk you through setting up a Nagios monitoring system on CentOS 7 using Vagrant and VirtualBox. We’ll configure a master server to monitor remote servers in a private network environment. https://lnkd.in/gHgMeg2e #Devops #Nagios #vagrant

Hi to all #WindowsSysAdmins out here. This is my first post on LinkedIn so be kind As a Linux System Engineer I want to give my help and share my idea to the other-os system engineer colleagues that may save time in their weekend about the #CrowdStrike issue. Since the workaround is removing a file from a specified path, it's possible to make a script to automate and bulk-apply the workaround, and I made a PoC one written in bash, that will automatically scan for all NTFS partitions on all disks on system, then mount one-by-one since I can't know on which of them Windows is installed, search for the agent folder and then rename the file as the official workaround suggestion; rebooting the host at the end to restore system functionality. Then, and this is one of my current knowledge limitation, because as everybody I can't know everything; the script if then will embedded on a LiveCD with auto-startup at boot, will automatize the cleanup process: simply boot the machine from this LiveCD and wait for the windows to be fixed. Furthermore, if you for example are on #VMWare environment, you maybe also can automate the mount of the ISO on all VM's and also force them to reboot from the ISO (one-time only). I mentioned #VMWare because I knows it have PowerCli and so some automation can be used there, along with #ProxmoxVE, and other virtualization platform has API to do so. For physical hosts? iLo, iDrac and IPMI to the rescue. This on the #datacenter and #server side of the infrastructure; but issue is also on #clients workstation..how to solve the issue also there? Maybe also on locations and branch offices where there are not on-premise support technicians? The idea od the "self-fixing" liveCD will be and advantage also there: if you put it on a #PXE server and make them it available, on network, the #EndUser may self-fix their workstation or PC by "simply" press F12 to boot the PC over the network and wait. This of course will not apply on all case out there: will not work if system drive is encrypted by BitLoker or if you doesn't have remote access to the server; and of course on some machine my fail, for example because the "mount -t ntfs /dev/$p /mnt" (where 'p' is the for cycle of the 'lsblk -l -f | grep "ntfs" | cut -d " " -f 1' output) reports error caused by the unclean filesysyem due to #BSOD but for sure will succed in some case save some time to a lots of colleagues out there. I can't post the original script that I made also because I haven't tested, but the concept behind is valid. This also can be the first episode of my personal series of 'when Linux save Windows' or for lighten up 'when the Tux fix the Window' To yours, maybe to someone at #Microsoft and/or at #CrowdStrike to make it and release to the community of system engineers Disclaimer: this post has been made as by my personal initiative, and as an act to return something on the community, from which I learned and keep learn everyday. Simon

Setting Up a Master and Remote Server with Nagios on CentOS 7 Using Vagrant – Part 1 This guide will walk you through setting up a Nagios monitoring system on CentOS 7 using Vagrant and VirtualBox. We’ll configure a master server to monitor remote servers in a private network environment. https://lnkd.in/gHgMeg2e #Devops #Nagios #vagrant

🌐 Empowering Server Infrastructure: My Latest Achievement! I'm thrilled to share a significant milestone in my journey of learning and building robust server systems. 🚀 Recently, I configured two servers with the following objectives: 1️⃣ DNS Server: To manage our own DNS and reduce dependency on external providers, enhancing control, security and reliability. 2️⃣ Web Server: Set up to host multiple domains and their subdomains seamlessly on a single server. This was made possible by leveraging virtualization techniques, which optimized resource utilization and simplified management. 🔧 Why this is exciting: Custom DNS configuration increases flexibility and security. Hosting multiple domains on a single server streamlines processes and reduces costs. This project reflects the power of technical innovation in solving real-world challenges, and I’m eager to explore more opportunities in this domain! Let’s connect and discuss how such solutions can transform digital infrastructure. 💡 #ServerConfiguration #DNS #WebServer #Virtualization #TechInnovation #devops #linuxserver #linux #learning #IT #devsecops #devlopment