https://baccd0da.ognotes.pages.dev/ Recent content in Home on OG Notes Hugo -- gohugo.io en © 2026 Orlando Gentil Mon, 11 Mar 2024 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/linux/2025072901-prevent_old_kernel_buildup/ Tue, 29 Jul 2025 12:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/linux/2025072901-prevent_old_kernel_buildup/ Avoid old kernel to remain installed after upgrade Change /etc/yum. https://baccd0da.ognotes.pages.dev/notes/linux/2024070301-tmux/ Thu, 03 Jul 2025 12:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/linux/2024070301-tmux/ Just sparking interest in t(erminal)mu(ltiple)x(er) “tmux is a terminal multiplexer1. https://baccd0da.ognotes.pages.dev/posts/2025070301-2018-origamis/ Thu, 03 Jul 2025 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/posts/2025070301-2018-origamis/ Origami collection from 2018 that I copied from IG https://baccd0da.ognotes.pages.dev/notes/linux/2025070201-markdown_cheatsheet/ Wed, 02 Jul 2025 12:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/linux/2025070201-markdown_cheatsheet/ I moved from QOwnnotes but this a good MD reference I found there Markdown Cheatsheet # This cheatsheet is intended as a quick reference and showcase of the markdown syntax in QOwnNotes. https://baccd0da.ognotes.pages.dev/notes/linux/2025060501-usb_reset_script/ Thu, 05 Jun 2025 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/linux/2025060501-usb_reset_script/ Reseting USB devices after resuming from sleep/suspend # After resuming my devices were not usable # My devices were becoming unresponsive after resuming from suspend. https://baccd0da.ognotes.pages.dev/privacy-remark42/ Sat, 24 May 2025 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/privacy-remark42/ OGNotes Commenting Privacy Policy Effective Date: May 24, 2025 https://baccd0da.ognotes.pages.dev/tos-remark42/ Sat, 24 May 2025 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/tos-remark42/ By posting comments on OGNotes. https://baccd0da.ognotes.pages.dev/test/ Tue, 20 May 2025 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/test/ ##Test - English https://baccd0da.ognotes.pages.dev/notes/linux/2025042301-install_docker_on_ol9/ Wed, 23 Apr 2025 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/linux/2025042301-install_docker_on_ol9/ Install Docker on Oracle Linux 9 using docker repository Docker install OL9 https://baccd0da.ognotes.pages.dev/notes/oci/20241030-recover_instance_without_key_m03/ Wed, 30 Oct 2024 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/oci/20241030-recover_instance_without_key_m03/ “You lost the SSH private key to an instance. https://baccd0da.ognotes.pages.dev/notes/oci/20241012-oci_yum_servers/ Sat, 12 Oct 2024 17:58:07 -0500 https://baccd0da.ognotes.pages.dev/notes/oci/20241012-oci_yum_servers/ “Does OCI have YUM servers? https://baccd0da.ognotes.pages.dev/notes/oci/20240703-recover_instance_without_key_m02/ Mon, 08 Jul 2024 13:55:33 -0500 https://baccd0da.ognotes.pages.dev/notes/oci/20240703-recover_instance_without_key_m02/ “You lost the SSH private key to an instance. https://baccd0da.ognotes.pages.dev/notes/oci/20240703-recover_instance_without_key_m01/ Wed, 03 Jul 2024 13:55:33 -0500 https://baccd0da.ognotes.pages.dev/notes/oci/20240703-recover_instance_without_key_m01/ “You lost the SSH private key to an instance. https://baccd0da.ognotes.pages.dev/notes/linux/20240702-setting_up_wayland_on_debian_12/ Mon, 01 Jul 2024 23:43:28 -0500 https://baccd0da.ognotes.pages.dev/notes/linux/20240702-setting_up_wayland_on_debian_12/ Setting up Wayland on Debian 12. https://baccd0da.ognotes.pages.dev/notes/linux/2024042001-iso_to_usb/ Sat, 20 Apr 2024 20:33:07 -0500 https://baccd0da.ognotes.pages.dev/notes/linux/2024042001-iso_to_usb/ Write an ISO to an USB drive with system commands if you are using MacOS MacOS # Find the disk # diskutil list Umount partitions # sudo diskutil umount /dev/<disk_part> Write using dd # sudo dd if=<iso file> of=/dev/<usb drive> bs=1m status=progress https://baccd0da.ognotes.pages.dev/posts/20240408-solar_eclipse/ Mon, 08 Apr 2024 14:33:07 -0500 https://baccd0da.ognotes.pages.dev/posts/20240408-solar_eclipse/ Some photos from the Total Solar Eclipse taken from Austin-Texas. https://baccd0da.ognotes.pages.dev/posts/2024040101-fss-performance/ Mon, 01 Apr 2024 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/posts/2024040101-fss-performance/ “I created a filesystem, but it is not performing as expected. https://baccd0da.ognotes.pages.dev/notes/linux/2024032601-install_gnome_on_ol8_at_oci/ Tue, 26 Mar 2024 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/linux/2024032601-install_gnome_on_ol8_at_oci/ I need to run programs with a graphical interface at my OCI instance. https://baccd0da.ognotes.pages.dev/notes/linux/2024032501-adding-_multiple_ports_to_an_nginx_server_block/ Mon, 25 Mar 2024 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/linux/2024032501-adding-_multiple_ports_to_an_nginx_server_block/ Adding multiple ports to an NGINX server block. https://baccd0da.ognotes.pages.dev/posts/2024032501-simplifying-iscsi-attachments-with-block-volume-management-plugin/ Mon, 25 Mar 2024 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/posts/2024032501-simplifying-iscsi-attachments-with-block-volume-management-plugin/ “How could I automate the iSCSI attachments, making them as convenient as the paravirtualized ones? https://baccd0da.ognotes.pages.dev/notes/linux/2024032401-adding_multiple_ports_to_an_apache_vhost/ Sun, 24 Mar 2024 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/linux/2024032401-adding_multiple_ports_to_an_apache_vhost/ Adding multiple ports to an Apache vhost. https://baccd0da.ognotes.pages.dev/notes/oci/20240324-aa-zero-quotas/ Sun, 24 Mar 2024 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/oci/20240324-aa-zero-quotas/ " Fetching existing quotas and zeroing everything". https://baccd0da.ognotes.pages.dev/posts/2024032101-why-should-you-upgrade-your-tenancy-account/ Thu, 21 Mar 2024 20:53:55 -0500 https://baccd0da.ognotes.pages.dev/posts/2024032101-why-should-you-upgrade-your-tenancy-account/ “Don’t be afraid of upgrading your tenancy - Here is why. https://baccd0da.ognotes.pages.dev/posts/2024031801-what-you-see-is-not-what-you-get/ Mon, 18 Mar 2024 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/posts/2024031801-what-you-see-is-not-what-you-get/ “I added an instance to a load balancer backend set, I can see the test page, but the LB health check keeps showing it as not healthy. https://baccd0da.ognotes.pages.dev/notes/linux/20240318-sequences_on_bash/ Mon, 18 Mar 2024 00:00:00 +0000 https://baccd0da.ognotes.pages.dev/notes/linux/20240318-sequences_on_bash/ “You need to create a sequence of items on bash”. https://baccd0da.ognotes.pages.dev/about/about-ognotes/ Sun, 17 Mar 2024 13:02:20 -0500 https://baccd0da.ognotes.pages.dev/about/about-ognotes/ About OGNotes # My challenge # I write notes in several places. https://baccd0da.ognotes.pages.dev/about/about-og/ Mon, 11 Mar 2024 19:40:45 -0500 https://baccd0da.ognotes.pages.dev/about/about-og/ About OG # My Mission # To empower individuals and organizations by sharing knowledge and expertise in Linux and IT infrastructure, fostering growth and innovation through effective problem-solving and technology solutions. https://baccd0da.ognotes.pages.dev/notes/oci/20240311-updating_the_instance_os_upon_creation/ Mon, 11 Mar 2024 19:35:12 -0500 https://baccd0da.ognotes.pages.dev/notes/oci/20240311-updating_the_instance_os_upon_creation/ “Every time I create a Linux instance, I spend time updating and upgrading the base installation on the first login. https://baccd0da.ognotes.pages.dev/posts/2024030801-security_list_and_nsg/ Sat, 09 Mar 2024 02:12:57 -0600 https://baccd0da.ognotes.pages.dev/posts/2024030801-security_list_and_nsg/ “I read the manual, but it is still hard to choose between SLs and NSGs…”. https://baccd0da.ognotes.pages.dev/posts/2024030801-remember_the_host_firewall/ Fri, 08 Mar 2024 23:40:45 -0600 https://baccd0da.ognotes.pages.dev/posts/2024030801-remember_the_host_firewall/ “I checked my Security Lists and NSGs; they are correct, but I still can’t connect to the service in my instance”. https://baccd0da.ognotes.pages.dev/notes/linux/20240306-view_http_headers_directly_on_tcpdump/ Wed, 06 Mar 2024 19:20:09 -0600 https://baccd0da.ognotes.pages.dev/notes/linux/20240306-view_http_headers_directly_on_tcpdump/ “You need to examine HTTP headers of incoming requests but don’t want to save the dump to a file and use Wireshark”. https://baccd0da.ognotes.pages.dev/posts/2024030501/ Tue, 05 Mar 2024 22:58:10 -0600 https://baccd0da.ognotes.pages.dev/posts/2024030501/ YABA - Yet Another Blog Attempt