User contributions for Saurabh
From Notes_Wiki
- 07:16, 11 November 2024 diff hist +104 m Switch configuration notes current
- 07:16, 11 November 2024 diff hist +983 N TP-Link switch configuring port-security to limit MAC IDs per port Created page with "Home > Switch configuration notes > TP-Link switch configuring port-security to limit MAC IDs per port =TP-Link switch configuring port-security to limit MAC IDs per port= ==Configure port-security for limiting MAC IDs per port== To configure port-security on a TP-Link switch use at global configuration level enable per-port limit of 1 (or desired no) of MAC IDs: <source type="Bash"> mac address-table max-mac-count max-number 1 exceed-maxlearned e..." current
- 03:38, 8 November 2024 diff hist +110 m Securing organizations IT infrastructure from modern threats current
- 03:36, 29 October 2024 diff hist −35 m Securing organizations IT infrastructure from modern threats
- 03:46, 19 October 2024 diff hist +336 m Convert current
- 11:35, 11 October 2024 diff hist +336 m Securing organizations IT infrastructure from modern threats
- 07:41, 29 September 2024 diff hist +160 m CentOS 8.x Control Web panel current
- 07:41, 29 September 2024 diff hist +3,050 N CentOS 8.x Control Web panel Disable Excessive resource usage alerts from LFD Created page with "Home > CentOS > CentOS 8.x > Email servers > Control Web panel > Disable Excessive resource usage alerts from LFD = Disabling High Resource Utilization Alerts for Specific Processes = This article explains how to disable or modify Login Failure Daemon (LFD) alerts for processes using excessive CPU time. Th..." current
- 07:33, 29 September 2024 diff hist +2,858 N CentOS 8.x Control Web panel Disable emails for successful SSH from LFD Created page with "Home > CentOS > CentOS 8.x > Email servers > Control Web panel > Disable emails for successful SSH from LFD = Disabling LFD Email Alerts for Successful SSH Logins = This guide explains how to disable email alerts from Login Failure Daemon (LFD) for successful SSH logins on servers configured with key-based authe..." current
- 07:18, 29 September 2024 diff hist +43 m Rocky 9.x System Administration current
- 07:18, 29 September 2024 diff hist +484 N Rocky 9.x Troubleshooting boot issues Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > Troubleshooting boot issues *Rocky 9.x Rebuilding Initial Ramdisk (initrd/initramfs) to solve boot issue Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > Rocky 9.x Troubleshooting boot issues|Troubleshooting boot..." current
- 07:18, 29 September 2024 diff hist +2,506 N Rocky 9.x Rebuilding Initial Ramdisk (initrd/initramfs) to solve boot issue Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > Troubleshooting boot issues > Rebuilding Initial Ramdisk (initrd/initramfs) = Rebuilding Initial Ramdisk (initrd/initramfs) in Rocky Linux 9.x = This article provides steps to rebuild the initial ramdisk (initrd/initram..." current
- 07:09, 29 September 2024 diff hist +72 m Online tools and utilities current
- 07:09, 29 September 2024 diff hist +3,020 N Get secret value from TOTP based QR code for saving in text format Created page with "Home > Online tools and utilities > Get secret value from TOTP based QR code for saving in text format = Converting TOTP QR Codes to Text Values = This article explains how to convert Time-based One-Time Password (TOTP) QR codes to their underlying text values using an online tool. This process is useful for sharing TOTP-based two-factor authentication (2FA) between multiple users or devices. == Introduction == TOTP is a common method for impl..." current
- 08:05, 4 August 2024 diff hist +170 m Pdftk current
- 08:02, 4 August 2024 diff hist +391 m Securing organizations IT infrastructure from modern threats
- 07:57, 4 August 2024 diff hist +67 m Proxmox virtual environment current
- 07:57, 4 August 2024 diff hist +2,481 N Troubleshooting ram usage or out of memory issues with proxmox Created page with "Home > Debian > Proxmox virtual environment > Troubleshooting ram usage or out of memory issues with proxmox If there is issue being faced related to RAM usage and if even worse some VMs are getting killed by OOM (Out of Memory) Killer then we can use following steps to investigate further. # Look at total memory allocated to VM and total physical memory. # Also look at whether balooning with minimum and maximum values has been enabled. # Do..." current
- 07:35, 4 August 2024 diff hist +89 m VMWare NSX current
- 07:35, 4 August 2024 diff hist +786 N Configure external syslog server on NSX manager for central logging or SIEM purposes Created page with "Home > VMWare platform > VMWare NSX > Configure external syslog server on NSX manager for central logging or SIEM purposes Configuring syslog server on NSX requires doing SSH to cluster IP / NSX manager IP and using: <pre> set logging-server <syslog-server> proto udp level info </pre> Later we can validate settings via: <pre> get logging-servers </pre> After this we still need to go to Distributed firewall and for each firewall rule enable op..." current
- 07:31, 4 August 2024 diff hist +35 m VMWare NSX
- 07:31, 4 August 2024 diff hist +785 N Renew NSX Manager certificates Created page with "Home > VMWare platform > VMWare NSX > Renew NSX Manager certificates To renew NSX manager certificates use following steps: # Login into NSX manager or NSX manager cluster # Go to System -> Certificates -> CSR # Select one certificate at a time and enable self-sign for it for 825 days (More than this may not be acceptable by NSX manager UI). # '''After the self-signed certificates are renewed''' go to System -> Fabric -> Compute Managers # Edit..." current
- 07:13, 4 August 2024 diff hist +313 m Rocky 9.x Configure new laptop for personal use current
- 07:08, 4 August 2024 diff hist +190 m CentOS 8.x create and use containers with podman current
- 07:07, 4 August 2024 diff hist −206 m CentOS 8.x networking of podman containers current
- 06:12, 4 August 2024 diff hist +93 m VMWare Platform Miscellaneous current
- 06:12, 4 August 2024 diff hist +1,972 N Install an additional CA certificate as trusted at the OS level in VMware Photon 4.0 OS Created page with "Home > VMWare platform > VMWare Platform Miscellaneous > Install an additional CA certificate as trusted at the OS level in VMware Photon 4.0 OS To install an additional CA certificate as trusted at the OS level in VMware Photon 4.0 OS, you can follow these steps: # Obtain the CA Certificate: #: Ensure you have the CA certificate file (e.g., `mycertificate.pem`) that you want to add as a trusted certificate. # Copy the Certificate to the Appro..." current
- 06:08, 4 August 2024 diff hist +76 m Amazon web services current
- 06:08, 4 August 2024 diff hist +3,582 N Delete millions of objects and terabytes of data from an AWS S3 bucket Created page with "Home > Amazon web services > Delete millions of objects and terabytes of data from an AWS S3 bucket To delete millions of objects and terabytes of data from an AWS S3 bucket, the most efficient and recommended method is to use S3 Lifecycle configuration rules. Here's a detailed explanation of how to do this: # Use S3 Lifecycle Configuration: #:Setting up a lifecycle policy is the most effective way to delete large amounts of data from an S3 bucket..." current
- 11:10, 21 May 2024 diff hist +44 m Emacs and org-mode notes current
- 05:12, 12 May 2024 diff hist +510 m CentOS 8.x Reduce size of ext2, ext3 or ext4 partition current
- 06:52, 13 April 2024 diff hist +264 m Rocky 9.x Upgrade Rocky 8.x to Rocky 9.x current
- 06:42, 13 April 2024 diff hist +1,457 m Rocky 9.x Issues while connecting to some wireless networks using Broadcom wireless current
- 05:18, 10 April 2024 diff hist +1 m Rocky 8.x New laptop OS configuration current
- 05:17, 10 April 2024 diff hist +1 m Rocky 9.x Configure new laptop for personal use
- 05:17, 10 April 2024 diff hist +22 m Rocky 9.x file system management current
- 05:17, 10 April 2024 diff hist +1,244 N Rocky 9.x Ventoy Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > File system management > Rocky 9.x Ventoy It is better to use Ventoy to have multiple OS installers on a single USB in comparison to dd approach or Rufus or some live USB creator. For creating bootable USB via Ventoy use: # Go to https://www.ventoy.net/en/download.html and download Linux .tar.gz file..." current
- 05:15, 10 April 2024 diff hist +62 m CentOS 7.x Fedora Live USB creator current
- 05:14, 10 April 2024 diff hist +61 m Universal USB installer current
- 05:06, 10 April 2024 diff hist +24 m Rocky 9.x systemd or systemctl current
- 05:06, 10 April 2024 diff hist +770 N Rocky 9.x loginctl Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > Rocky 9.x systemd or systemctl > Rocky 9.x loginctl It is possible for user session to end abruptly and hence not visible in output of: <pre> w </pre> In such cases if they have existing loginctl / systemd session we can see such sessions via: <pre> loginctl list-sessions </pre> We can grep units related to listed session ID via: <..." current
- 05:03, 10 April 2024 diff hist +87 m Rocky 9.x Debugging systemd issues current
- 05:02, 10 April 2024 diff hist +39 m Rocky 9.x systemd or systemctl
- 05:02, 10 April 2024 diff hist +919 N Rocky 9.x Debugging systemd issues Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > Rocky 9.x systemd or systemctl > Rocky 9.x Debugging systemd issues At times we may need to debug systemd if we dont know what is going on or especially if some command is running via systemd but we dont know which unit/service is responsible for running this command. In such cases enable debug option in systemd using: # Edit '<tt>/..."
- 04:58, 10 April 2024 diff hist +100 m CentOS 8.x Securing a Linux machine current
- 04:55, 10 April 2024 diff hist +35 m Rocky 9.x systemd or systemctl
- 04:55, 10 April 2024 diff hist +876 N Rocky 9.x journalctl options Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > Rocky 9.x systemd or systemctl > Rocky 9.x journalctl options =Logs after current boot (-b)= We can use below to see logs post current boot: <pre> journalctl -b </pre> This can be useful if we want to debug some service which is not running eg mariadb / sshd etc. and we have tried to start it manually after current boot perhaps after..." current
- 04:51, 10 April 2024 diff hist +1,011 m Package management in Ubuntu current
- 04:51, 10 April 2024 diff hist +133 m Rocky 9.x systemd service file configuration options current
- 04:43, 10 April 2024 diff hist +41 m Systemd current
