Understanding Squid Access Log

Understanding Squid Access Log

Many times we find difficulty to understand SQUID access logs and hardly there are a few references available. This article provides complete details about understanding SQUID access logs.

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Chroot SSH

Chroot SSH Configuration on Linux|RHEL|CentOS

Using OpenSSH you can bind SSH or SFTP users to their home directory and restrict them to access other directories on the SSH server. In this article we will demonstrate…

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SFTP

How to setup passwordless chroot SFTP on Linux

This article describes a step by step procedure to set up password-less chroot SFTP login between a source and destination system.

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SFTP

SFTP chroot configuration on Linux

SFTP provides secure file transmission method however a SFTP logged in user can browse other sub-directories other than the user’s designated home directory. This article provides a step by step…

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Linux DHCP PXE

Multiple subnet PXE installation with Linux DHCP

In computing, the Pre-boot Execution Environment describes a standardized client-server environment that boots a software or operating system, retrieved from a network, on PXE-enabled clients. On the client side it…

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Linux DHCP

No subnet declaration for ethx

No subnet declaration for eth1 (no IPv4 addresses). Ignoring requests on eth1. If this is not what you want, please write a subnet declaration in your dhcpd.conf file for the…

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Linux SFTP

SFTP restrict delete or remove or rename permission

sftp is an interactive file transfer program, similar to ftp(1), which performs all operations over an encrypted ssh(1) transport. sftp-server is a program that speaks the server side of SFTP…

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EPEL Repository

How to enable EPEL repository on CentOS or RHEL

EPEL (Extra Packages for Enterprise Linux) is a volunteer-based community effort from the Fedora project to create a repository of high-quality add-on packages that complement the Fedora-based Red Hat Enterprise…

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SSH Delay Login

SSH login delay|slow

Many times we observe there is some delay in SSH login and the delay might be from 2 seconds to 2 minutes. There are a few troubleshooting steps we need…

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Nginx Logging

Exclude certain|specific logs from Nginx

Nginx logs are needed to track all events generated on the Webserver. However there are some specific events which are not needed to track. turning off of those logs or…

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