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Fixed error «cpio: Digest mismatch»

When trying to install freetype rpm package, RPM was throwing the following error Error: unpacking of archive failed on file ... .rpm This command disables the digest check during package installation, and there wont be any errors related to digest check

Netdata with Prometheus

Prometheus is a distributed monitoring system, which fetches and stores time-series data. It can also take actions on this da ... .15:9090/ You should be able to see the metrics under the metrics drop down list. Please check attached screenshots  

Installing Consul on Linux/Centos

Consul is a distributed, highly available service discovery and configuration system. It can be used to present your services ... P and Ports, which application exposed. I will explain Consul clustering, in next article. Let me know if you face any issue.

Upgrade git on Centos

Most of the Linux distros comes with git version 1.6/1.7 .If you want to upgrade it , you need to compile it from source Inst ... make all make install   Now check git version using 1 2 git version git version 2.10.1.502.g6598894

How to list modules compiled into nginx?

Unlike apache webserver, in Nginx , modules are built  into nginx binary itself . It is not possible build these modules sepa ... =generic’ –with-ld-opt=’ -Wl,-E’ You can see that modules ipv6, ssl, realip , gzip and many more are enabled .  

How to delete/clear Nginx cache?

Nginx is a powerful webserver which can act as a reverse proxy for caching static pages. Keeping Nginx in the frontend will ... s, feel free to drop us a note if you have any questions or feedback using our comment form below. Always Happy to help ???? 

Installing consul cluster on Centos7/Centos6/Ubuntu

Please check the Consul initial setup instructions at here

How to check Nagios Version on your server?

In this article we will explain how to check Nagios Version on your machine. What Version of Nagios Core I am Running? Easies ... ios”.   Please see the screenshot image below You can see the Nagios Core release notes at their official website here

Netdata with InfluxDB backend

In this article we will see how to install and configure Netdata with InfluxDB backend Netdata is a popular Monitoring tool   ... ve created a video on how to add and visualize InfluxDB data using Grafana   Please let me know if you face any issue ????  

Fixed: Revel installation stuck at «git clone https://gopkg.in/fsnotify.v1»

I faced this issue while installing Revel, installation stuck at “git clone https://gopkg.in/fsnotify.v1” Command ... in/fsnotify.v1   Fix Upgraded git on the server. I was using git 1.7, upgraded to latest git version (2.1) and its fixed.

Setting Up Docker Registry with S3 Storage

As you know , putting your container images in Docker public Registry is not a good idea, because anyone can pull it from doc ... se iptables/firewalld for this. Feel free to contact me if you have any questions or feedbacks, using the comments below ????

How to delete data from InfluxDB?

InfluxDB is one of the most popular Timeseries data stores. It’s useful for recording system metrics, events, and performing ... As always,please drop us a note if you have any questions or feedback using our comment form below. Always Happy to Help ????

Load Testing DNS using DNSPerf

In this article we will discuss load testing DNS using DNSperf When i was setting up my internal DNS servers, I wanted to kno ... feel free to drop us a note if you have any queries or feedbacks using our comment form below. Always happy to help you ????

Haproxy Lua example

HAProxy is a powerful load balancer which can be used to Load Balance your Webservers, Database servers and many more. In Ver ... g You can watch the messages on the console, if you face any issue. Feel free to contact me if you face any issue ????

Start/Run Haproxy in foreground

  In this article we will explain how to start/Run HAproxy in foreground.HAproxy is an open source software loadbalancer whi ... e, 0 requeued, 0 remaining in queue.   You can see that HAproxy started on foreground and printing debug logs to console.

Haproxy with Lua Support

  Compiling HAProxy with Lua support Haproxy  requires Lua 5.3 or later. Lua version 5.3  is young and you may not fin ... hen return “backend2” end return “backend1” end)    I have posted more sample haproxy-lua scripts here , please checkout.

Graylog2 on Centos

  Graylog is one of the most powerful and sophisticated log aggregation tool which is widely popular nowdays. You can forwar ... rt 5000 which in turn send to Graylog input port 12500. If everything goes well you should be able to see the logs on web GUI

How to change width and length of cells,rows,columns in google sheets

Following video will explain how to change width and length of cells,rows,columns in google sheets  

How to view and clear BIND DNS server cache?

In this article we will see how to view and clear BIND DNS server cache. A DNS server can cache the DNS records which was pr ... # cat /var/named/data/cache_dump.db |grep yahoo [[email protected] var]#   You can see that cached dns records are gone.

How to run nginx on Foreground?

How to run nginx on Foreground? By default, when you start nginx service it will start in self-daemonize mode, that mean ngin ... e command line You can start nginx on foreground, using below command 1 2 3   nginx –g ‘daemon off;’