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• 11:20, 23 July 2023 Admin talk contribs uploaded File:4090 power consumption.png
• 11:20, 23 July 2023 Admin talk contribs created page File:4090 power consumption.png
• 10:22, 23 July 2023 Admin talk contribs created page GPU dual bios (Created page with "== What is a Dual Bios? == Dual Bios feature was about overclocking. How so? Users would leave Bios1 default as a fallback while they would flash a custom Bios on Bios2 for overclocking purposes. But the Dual Bios functionality has changed over the years. The Dual Bios function now is more about performance == Example == ZOTAC GAMING GPUs feature two profiles: AMPLIFY and QUIET<ref>https://www.zotac.com/hk/news/dual-bios</ref> * AMPLIFY, the default bios out of the...") Tag: Visual edit
• 09:47, 23 July 2023 Admin talk contribs created page Kernel tips and tricks (Created page with " == perf interrupt took too long in system log == phenomenon system log shows "perf interrupt took too long (aaa > bbb), lowering kernel.perf_event_max_sample_rate to ccc" Action Nothing to worry about. It has to do with the Linux perf tool which is included in the kernel. The kernel automagically determines the sample rate that could be used without impacting system performance too much; and it logs this even when perf isn't active, or even installed. Messages like...") Tag: Visual edit
• 18:38, 22 July 2023 Admin talk contribs created page DKMS (Created page with " == Force to remove installed dkms module<ref>https://www.mkammerer.de/blog/broken-nvidia-driver-or-clean-up-old-dkms-modules/</ref> == <code>sudo rm -rf /var/lib/dkms/modulename/*</code> == References == <references />") Tag: Visual edit
• 09:53, 21 July 2023 Admin talk contribs created page NFS (Created page with "It is important to know them NFS export and mount options especially when you are facing a performance issue or a functional issue with the NFS mount over network. == Basic command == {| class="wikitable sortable" |+ !Commands !Description !Command on |- |# exportfs -r |Re-export your shares |Server |- |# exportfs -a |Export your shares |Server |- |# exportfs -v |Verify the NFS Share permissions |Server |- |$nfsstat -m |'''Verify Current NFS Mount Options'''...") Tag: Visual edit
• 05:22, 21 July 2023 Admin talk contribs created page Silicon Root of Trust (Created page with "== What is Silicon Root of Trust == Silicon Root of Trust is firmware technology that integrates security directly into the hardware level of servers, making an immutable fingerprint in the silicon that provides advanced levels of protection against firmware attacks. It detects changes being introduced by cyber attackers and disables the server, so malicious code never penetrates and allows operation to quickly regain its original state. [https://www.rambus.com/blogs/ha...") Tag: Visual edit
• 12:31, 20 July 2023 Admin talk contribs created page Storcli (Created page with "'''StorCLI''' is a command line tool for the administration of '''MegaRAID Controllers''' and the '''successor of MegaCLI.''' More background and overall introduction is available [https://docs.broadcom.com/doc/12352476 this old document] == Install storcli under Ubuntu == Download the latest version of storecli from [https://www.broadcom.com/site-search?q=megacli Broadcom URL] then unzip the zip file. Unzip will create folder name Unified_storcli_all_os to support v...") Tag: Visual edit
• 08:51, 19 July 2023 Admin talk contribs created page RAM Generations (Created page with "All computer devices use random-access memory (RAM) to store the short-term data. As computer process evolve, RAM  improves too. Each generation of RAM increases speed and frequency while decreasing power consumption. This page summarize the differences between the generations of RAM<ref>https://www.crucial.com/articles/about-memory/difference-among-ddr2-ddr3-ddr4-and-ddr5-memory</ref>. {| class="wikitable sortable" |+ !Generation !History !Prefetch !Data Rate(MT/s) !T...") Tag: Visual edit
• 11:33, 7 July 2023 Admin talk contribs created page HBA/RAID controller (Created page with "== RAID Controller Port == There is a concept in RAID controller, that are '''Native Supported Disks and Maximum Supported Disks.''' * Native support # means the number of disks that can be direct connected to the RAID controller usinb brakeout cable * Maximum Supported Disks # means when to use of port expanders such as Intel RES2SV240 == RAID Controller Interface == The RAID controller has an interface that connects to the storage drive and an interface that conn...") Tag: Visual edit
• 08:47, 6 July 2023 Admin talk contribs uploaded File:IP Address Classification.png
• 08:47, 6 July 2023 Admin talk contribs created page File:IP Address Classification.png
• 11:59, 5 July 2023 Admin talk contribs created page Network Class (Created page with "== The Five IPv4 Classes == there are five classes: A, B, C, D and E in the IPv4 IP address space. Primarily, class A, B, and C are used by the majority of devices on the Internet. Class D and class E are for special uses. Each class has a specific range of IP addresses.<ref>https://www.meridianoutpost.com/resources/articles/IP-classes.php</ref> Within each network class, there are designated IP address that is reserved specifically for private/internal use only. This I...") Tag: Visual edit
• 14:54, 1 July 2023 Admin talk contribs created page Type of SATA and SAS connector (Created page with "== SATA and SAS Cables - Combined Connectors<ref>https://www.lindy.com.au/sata-and-sas-cables-combined-connectors-explained/</ref> == center|frameless|550x550px * '''22pin (7pin + 15pin) SATA Combo''' - The most common type of connector, this can be found in most 5.25", 3.5", 2.5" and a variety of 1.8" drives and hard drives. * '''29pin SAS Combo''' - A connecter socket for SAS drives as a SATA combination 22p plug does not fit SAS Drives...") Tag: Visual edit
• 14:51, 1 July 2023 Admin talk contribs uploaded File:Sas connector type.png
• 14:51, 1 July 2023 Admin talk contribs created page File:Sas connector type.png
• 14:23, 1 July 2023 Admin talk contribs uploaded File:Sata sas connector.png
• 14:23, 1 July 2023 Admin talk contribs created page File:Sata sas connector.png
• 16:12, 28 June 2023 Admin talk contribs changed group membership for Vitallab from (none) to customers
• 16:09, 28 June 2023 User account Vitallab talk contribs was created by Admin talk contribs
• 14:58, 28 June 2023 Admin talk contribs uploaded File:VPN ipsec l2tp.png
• 14:58, 28 June 2023 Admin talk contribs created page File:VPN ipsec l2tp.png
• 14:53, 28 June 2023 Admin talk contribs uploaded File:VPN macos networksetup.png
• 14:53, 28 June 2023 Admin talk contribs created page File:VPN macos networksetup.png
• 14:51, 28 June 2023 Admin talk contribs uploaded File:VPN mac os.png
• 14:51, 28 June 2023 Admin talk contribs created page File:VPN mac os.png
• 14:38, 28 June 2023 Admin talk contribs uploaded File:VPN client advanced.png
• 14:38, 28 June 2023 Admin talk contribs created page File:VPN client advanced.png
• 14:34, 28 June 2023 Admin talk contribs uploaded File:VPN not use DHCP NAT.png
• 14:34, 28 June 2023 Admin talk contribs created page File:VPN not use DHCP NAT.png
• 14:31, 28 June 2023 Admin talk contribs uploaded File:VPN client window.png
• 14:31, 28 June 2023 Admin talk contribs created page File:VPN client window.png
• 14:28, 28 June 2023 Admin talk contribs uploaded File:VPN user managment.png
• 14:28, 28 June 2023 Admin talk contribs created page File:VPN user managment.png
• 14:24, 28 June 2023 Admin talk contribs created page File:Vpn manager window.png
• 14:24, 28 June 2023 Admin talk contribs uploaded File:Vpn manager window.png
• 09:01, 27 June 2023 Admin talk contribs created page File:HMVPN network flow.png
• 09:01, 27 June 2023 Admin talk contribs uploaded File:HMVPN network flow.png
• 16:08, 26 June 2023 Admin talk contribs created page File:Vpn-overview-url.png
• 16:08, 26 June 2023 Admin talk contribs uploaded File:Vpn-overview-url.png
• 16:06, 26 June 2023 Admin talk contribs uploaded File:Vpn-download-url.png
• 16:06, 26 June 2023 Admin talk contribs created page File:Vpn-download-url.png
• 15:41, 26 June 2023 Admin talk contribs moved page HMVPN to Manual:HMVPN
• 15:41, 26 June 2023 Admin talk contribs created page HMVPN (Created page with " == References == <references />") Tag: Visual edit
• 09:27, 19 June 2023 Admin talk contribs created page HM4000-E10 (Created page with "center|frameless|243x243px|File:Hm4000-e10.png == Application[edit | edit source] == * Artificial intelligence * Heavy scientific computation * High-performance computing * Research lab/national lab * Astrophysics, business intelligence == Features[edit | edit source] == # 3rd Generation Intel® Xeon® Scalable Processors with more core density compared to previous generation in dual sockets to increase server utilization. # Supports up to 4 x...") Tag: Visual edit
• 09:22, 19 June 2023 Admin talk contribs uploaded File:Hm4000-e10.png
• 09:22, 19 June 2023 Admin talk contribs created page File:Hm4000-e10.png
• 15:15, 18 June 2023 Admin talk contribs created page Sar (Created page with "Monitoring server resources is a crucial part of identifying any bottlenecks and possible issues on your server. The <code>sar</code> command allows you to capture the utilization of your resources like RAM, CPU, Disk I/O and etc on Ubuntu, sar can be installed by $sudo apt install sysstat == sar system service == sar can be run as system service # sudo systemctl start sysstat # sudo systemctl enable sysstat # This will add the required cron jobs so that the system...") Tag: Visual edit
• 14:49, 18 June 2023 Admin talk contribs created page IPerf3 performance test (Created page with "iPerf is open source benchmarking utility. The latest version iPerf3, is a complete rewrite of the code first developed by the National Laboratory for Applied Network Research in the 2000s. iPerf3 suports various OS and can be download at [https://iperf.fr/iperf-download.php this site] depending on the host OS. == How to run test using iPerf3 == === Server side === iPerf3 -s<syntaxhighlight lang="bash"> #General usage with default options $iperf3 -s #To use a port o...") Tag: Visual edit
• 12:18, 17 June 2023 Admin talk contribs created page GIT tips and tricks (Created page with "== Remove directory == <code>git rm -r --cached foldername</code> == References == <references />") Tag: Visual edit