SSH (Secure Shell) is a network protocol that allows secure remote access to a Linux server. Normally, users authenticate using a password when connecting via SSH. However, passwordless authentication using SSH keys provides improved security and faster login access. This guide explains how to configure passwordless SSH login using PuTTY and PuTTYgen. What Is Passwordless SSH Login? Passwordless SSH authentication uses a public and private key pair instead of passwords: Once configured, you can log in securely without entering a password. Step 1: Download Required Tools Download the following utilities: …
Accessing webmail through SquirrelMail, Horde, or Roundcube should normally work without issues. However, administrators may sometimes encounter a blank screen or repeated login failed errors even when the username and password are correct. This issue is usually caused by incorrect domain ownership, corrupted user domain files, or a hostname conflict within the cPanel server. This guide explains how to troubleshoot and resolve the problem step by step. Issue Description While accessing webmail clients such as: you may notice: These symptoms typically indicate a domain ownership mismatch on the server. Solution …
This feature can be used to fetch multiple email account using Gmail. If we have multiple email accounts, we can check them all in Gmail. Gmail’s Mail Fetcher feature first imports all your old messages to Gmail and then continues to bring in new messages sent to your other account. We can add up to 5 accounts in Gmail, including Gmail and other email providers.This all works using POP3. General settings for using this features with Gmail. ————————————————————– 1. Log into your Gmail account. 2. Click the gear icon in …
This error may occur if the website uses Incapsula for maintaining traffic. Incapsula provides every website, regardless of its size, with an enterprise-grade PCI-certified Web Application Security, ensuring your website is safe and available. Upon completion of the DNS changes, as outlined by Incapsula, you are effectively directing all of your traffic via Incapsula’s network of proxy servers (Incapsula proxies). Incapsula proxies access your servers directly and then serve content to the site visitors. Requests to your servers are therefore all coming from a limited range of Incapsula IP addresses. …
Ever since after the up gradation of WHM to higher versions, there can be many issues of lost or unlisted addon/parked domains in Cpanel. The domains will be present in /etc/userdomains, but still fails to be seen in the email account creation tab in Cpanel. This is mainly beacuse of the XDNS entries in /var/cpanel/users/<cpanel_username> If your required domains are marked as XDNS, then rename XDNS to DNS of all the required domain entries. After this you have to run the following script to update the userdomains #scripts/updateuserdomains After running …
Sometimes, Horde webmail login may fail due to permission issues on session files. When this happens, the Apache error log usually shows permission-related PHP warnings. Common Error Seen in Apache Logs You may find errors like the following in the Apache error log: PHP Warning: Unknown: open(/var/cpanel/userhomes/cpanelhorde/sessions/sess_6f4fe8e66b99d89b239eb0839e3393a7, O_RDWR) failed: Permission denied (13) in Unknown on line 0 PHP Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/cpanel/userhomes/cpanelhorde/sessions) in Unknown on line 0 These errors indicate that PHP is unable to …
The Precision Time Protocol (PTP) is a network protocol used to synchronize clocks across devices in a computer network. It is designed to deliver very high accuracy, especially in environments where precise timing is critical. PTP typically operates over Ethernet networks and achieves its best accuracy on well-engineered local area networks (LANs) that support hardware timestamping. On such networks, PTP can synchronize clocks with sub-microsecond accuracy. The PTP timescale is expressed in seconds and nanoseconds, allowing extremely fine-grained time measurement. IEEE 1588 and PTP Usage PTP is defined by the …
Google has launched its new free tool called ‘Web Designer’ for building interactive HTML5 web sites and advertisements.This tool can be downloaded for Mac and Windows. It is a great means by which the advertisers can create HTML5 pages and animations very easily for mobile as well as PC. The best part about this latest release is that one can directly edit the source code in the editor which is built into it. The designers can later view the preview of their sites in the browser. One can further improve …
It is very easy to block IP (country wise) with the help of CSF the default firewall from Cpanel.But it is not the case when we try with IPTables. In this blog I will try to demonstrate how to Block IP from a certain country with the help of IPtables.For example purpose I choose Afghanistan and China.
We can always set time to the commands showed in history command as it will be totally a security measure and can be used for troubleshooting/fingerprinting a security threat. History command sample output before setting this variable is as below: 466 df -h 467 df 468 exit 469 nfsstat 470 find / -iname *.ppt Inorder to display date and time of execution along with the commands, use inbuilt variable HISTTIMEFORMAT to set the values as shown below: #export HISTTIMEFORMAT=’%F %T ‘ where, %F for setting year/month/day %T for setting time …