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Browse the latest tutorials, guides, and practical examples across Linux, DevOps, security, databases, and programming on GoLinuxCloud.
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2232 articles
Bash / Linux: count string or word occurrences in a file (`grep`, `wc`, `awk`)
Count how many times a word or substring appears in a file, count lines and words with wc, whole-word matches with grep -E, and build a frequency table with awk …
Linux: find duplicate files by hash, list them, and remove duplicates safely
Use find with sha256sum (or md5sum) to list identical files on Linux, group by hash, then delete duplicate copies interactively or after a dry-run—plus how …
Top 15 tools to monitor disk IO performance with examples
Top and best tools to check and monitor disk IO performance with disk IO statistics and disk stats with examples. Linux disk usage with iostat, vmstat
How to PROPERLY boot into single user mode in RHEL/CentOS 7/8
linux single user mode, centos 7 single user mode, rhel 7 single user mode, single user mode linux, how to boot into single user mode linux, centos single user …
Overview on different disk types and disk interface types
different disk types, different disk interface types. HDD vs SSD vs Optical Disks. Learn all about SCSI, IDE, ATA, SATA, Fibre Channel disk interface types
Grep word after match; awk print after match (Linux)
Grep word after match, grep everything after match, grep characters after match, grep next line after match, and awk print after match on Linux (GNU grep -P …
#4-ELK Stack: Configure metricbeat 7.x to monitor elasticsearch cluster
Tutorial to install and configure metricbeat to monitor elasticsearch cluster in ELK Stack on RHEL/CentOS 7/8 Linux with examples over SSL/TLS (HTTPS)
#3-ELK Stack: Configure kibana 7.x with SSL/TLS encryption
Kibana Tutorial to setup, install and configure Kibana dashboard with SSL/TLS encryption over HTTPS for elasticsearch cluster with examples in Linux.
#2-ELK Stack: Enable https with ssl/tls & secure elasticsearch cluster
Steps to enable HTTPS and SSL to secure elasticsearch cluster and ELK Stack using encrypted key and certificates in Linux with examples RHEL/CentOS 7/8
#1-ELK Stack: Configure elasticsearch cluster setup CentOS/RHEL 7/8
Elasticsearch Tutorial on ELk Stack to configure elasticsearch cluster in RHEL/CentOS 7/8 Linux with examples. Get cluster helath status, node types, stats
#5-ELK Stack: Configure logstash 7.x with data pipeline
Steps to install and configure logstash 7.x and send data from logstash to elasticsearch. Monitor the logs on Kibana dashboard using index pattern
2 easy methods to extend/shrink resize primary partition in Linux
Resize primary partition shrink and extend non lvm root, boot and other primary partition, change size of partition using unallocated free space fdisk & parted
How to Check Filesystem Type in Linux
Learn how to check filesystem type in Linux for mounted paths, disks, partitions, LVM volumes, USB drives, ISO media, and unmounted filesystem images with …
6 ssh authentication methods to secure connection (sshd_config)
Overview on different openssh authentication methods using sshd_config in RHEL/CentOS 7/8 Linux with Examples. Authenticate your sshd connection in Linux
How to configure ssh host based authentication per user (CentOS/RHEL 7/8)
Configure SSH Host Based Authentication using sshd_config, shosts,equiv per user RHEL/CentOS 7/8. Compare Host based authentication vs public key authentication …