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Combined display of all available logs of HPCWIKI. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 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 created page File:Vpn-download-url.png
• 16:06, 26 June 2023 Admin talk contribs uploaded 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 created page File:Hm4000-e10.png
• 09:22, 19 June 2023 Admin talk contribs uploaded 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
• 18:16, 16 June 2023 Admin talk contribs created page Ulimit (Created page with "'''<code>ulimit</code>''' is a built-in Linux shell command that allows '''viewing or limiting system resource amounts''' that individual users consume. Limiting resource usage is valuable in environments with multiple users and system performance issues. ''limits.conf'' file is a configuration file that defines the system resource allocation settings '''<code>ulimit</code>''' uses. The full path to the configuration file is ''/etc/security/limits.conf''. Changing th...") Tag: Visual edit
• 17:08, 16 June 2023 Admin talk contribs created page Hugepage (Created page with "Hugepage support is required for the large memory pool allocation used for packet buffers (the HUGETLBFS option must be enabled in the running kernel as indicated the previous section). By using hugepage allocations, performance is increased since fewer pages are needed, and therefore less Translation Lookaside Buffers (TLBs, high speed translation caches), which reduce the time it takes to translate a virtual page address to a physical page address. Without hugepages, h...") Tag: Visual edit
• 16:29, 16 June 2023 Admin talk contribs moved page Network performance terminology to Network performance test
• 09:08, 16 June 2023 Admin talk contribs created page Network performance terminology (Created page with "== Throughput == throughput means as data transfer rate or digital bandwidth consumption and denotes the achieved average useful bit rate in a com- puter network over a physical communication link. so it is measured below the network layer and above the physical layer, e.g, data link layter in OSI 7 layer concept. In network terminology, one Kbit/s means 1,000 bit/s and not 1,024 bit/s == Round trip time == Round trip time (RTT) is the total amount of time that a pac...") Tag: Visual edit
• 13:42, 15 June 2023 Admin talk contribs created page Ubuntu tips and tricks (Created page with "== apt-get update “the following signatures couldn’t be verified because the public key is not available” == <syntaxhighlight lang="bash"> $ sudo apt update Err:5 https://packages.cloud.google.com/apt kubernetes-xenial InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B53DC80D13EDEF05 #need to add the missing Key B53DC80D13EDEF05 $sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B53DC80D13ED...") Tag: Visual edit
• 19:55, 14 June 2023 Admin talk contribs created page Linux iptables (Created page with "Among big topic of networking, iptables is incredibly versatile and widely used despite being replaced by nftables on Linux. Iptables works as a command-line firewall that filters packets according to the defined rules. With Iptables, users can accept, refuse, or onward connections. == Iptables glossary == * '''TARGET''': A target is an action you want Iptables to apply when a packet matches a rule. * '''CHAIN''': A chain is a list of rules; available built-in chains...") Tag: Visual edit
• 18:26, 9 June 2023 Admin talk contribs created page FQDN (Created page with "'''FQDN''' – A fully qualified domain name (FQDN) is the complete domain name for a specific computer, or host, on the internet or in your local area network. An example is ''mail.yourdomain.com'' Category: Terminology") Tag: Visual edit: Switched
• 10:05, 30 May 2023 Admin talk contribs created page File:Samsung PM9A3 specificatio.png
• 10:05, 30 May 2023 Admin talk contribs uploaded File:Samsung PM9A3 specificatio.png
• 17:11, 29 May 2023 Admin talk contribs created page BIOS vs UEFI (Created page with "UEFI and BIOS are used to boot computer system. Although UEFI is a newer software solution, it is not always necessary to use UEFI. Some mother board provides led or bottom-right corner on monitor to display boot code status {| class="wikitable" ! !BIOS ('''B'''asic '''I'''nput/'''O'''utput '''S'''ystem) |UEFI ('''U'''nified '''E'''xtensible '''F'''irmware '''I'''nterface)<ref>https://en.wikipedia.org/wiki/UEFI</ref> |- |'''Release Date''' |1975. |2002...") Tag: Visual edit
• 17:08, 29 May 2023 Admin talk contribs moved page BIOS code to AMI Boot code
• 16:06, 29 May 2023 Admin talk contribs created page BIOS code (Created page with "== Typical AMI bios code == Progress Codes 00 - Not used 01 - Power on. Reset type detection (soft/hard) 02 - AP initialization before microcode loading 03 - System Agent initialization before microcode loading 04 - PCH initialization before microcode loading 05 - OEM initialization before microcode loading 06 - Microcode loading 07 - AP initialization after microcode loading 08 - System Agent initialization after microcode loading 09 - PCH initialization after...") Tag: Visual edit
• 13:51, 27 May 2023 Admin talk contribs created page Network interface name (Created page with "The Linux kernel assigns names to network interfaces, nowaday there are multiple network interface naming scheme is available and each has pros and cons. == Simple scheme == <code>eth0</code>, <code>eth1</code>, etc were simply assigned by the kernel. There are many possible way to use this scheme, * . reboot with the kernel parameter <code>net.ifnames=0</code>, or made persistent by editing <code>/etc/default/grub</code> and running <code>update-grub</code> * ove...") Tag: Visual edit
• 11:33, 27 May 2023 Admin talk contribs created page File:Tap tun veth.png
• 11:33, 27 May 2023 Admin talk contribs uploaded File:Tap tun veth.png
• 11:33, 27 May 2023 Admin talk contribs created page File:Https---www.packetcoders.io-content-images-2020-10-image1.png.png
• 11:33, 27 May 2023 Admin talk contribs uploaded File:Https---www.packetcoders.io-content-images-2020-10-image1.png.png
• 11:30, 27 May 2023 Admin talk contribs created page Virtual Networking Devices (Created page with "In physical world, computer systems typically consist of one or more physical network adapter something like ethx, enox. however, in virtual networking world, '''TUN, TAP''' and '''veth Pairs are used for VMs for network connectivity.''' TUN/TAP/VETH makes a virtual network interface on host then we can assign an IP to it, analyze the traffic, route traffic to it etc. File:Packetcoders.io.image.png|center|thumb|813x813px|Ref-https://www.packetcoders.io/content/images...") Tag: Visual edit
• 11:29, 27 May 2023 Admin talk contribs created page File:Packetcoders.io.image.png
• 11:29, 27 May 2023 Admin talk contribs uploaded File:Packetcoders.io.image.png
• 13:50, 26 May 2023 Admin talk contribs created page A malware on GPU server (Created page with "My team does not realize a malware in our system, we just assumed someone is working hard on the shared GPU system. Because we are not frequently checking host resource due to container or web interface oriented working process. however, it turns out one of Coinminer<ref>https://en.wikipedia.org/wiki/Cryptojacking</ref>- Multios.Coinminer.Miner - live in hiding on the system. This page describes how to handle this malware to help someone's time for the similar situation...") Tag: Visual edit
• 12:45, 26 May 2023 Admin talk contribs created page File:Malware name.png
• 12:45, 26 May 2023 Admin talk contribs uploaded File:Malware name.png
• 12:40, 26 May 2023 Admin talk contribs created page File:Malware 100CPU.png
• 12:40, 26 May 2023 Admin talk contribs uploaded File:Malware 100CPU.png
• 17:32, 25 May 2023 Admin talk contribs created page Docker library sharing from host to container (Created page with "From Docker and micro service point of view, the best practices of Docker are to package the library into the image, and not rely on a library file being present on the host. however, sometime sharing host library to container would be helpful to reduce redundancy and reduce size of Docker images. One of example would be CUDA tool kit, for example, install various version of CUDA toolkit on host and volume mouting when container start with read only. this method will...") Tag: Visual edit
• 17:02, 25 May 2023 Admin talk contribs created page Docker command workflow (Created page with "Following slide show a high level Docker commands from Dockerfile to Dockerhub or private Dockerhub. {| class="wikitable" |+ !commands !State from !State to !Example !Notes |- |build/compose |Dockerfile or compose file |docker image |build docker image from source | |- |run |docker image |docker container |execute image as container | |- |commit |docker container |docker image |apply change in container to image | |- |stop/start/restart |docker container |docker contain...") Tag: Visual edit
• 16:56, 25 May 2023 Admin talk contribs created page File:Docker file2hub2.png
• 16:56, 25 May 2023 Admin talk contribs uploaded File:Docker file2hub2.png
• 16:47, 25 May 2023 Admin talk contribs created page File:Docker file2hub.png
• 16:47, 25 May 2023 Admin talk contribs uploaded File:Docker file2hub.png
• 16:39, 25 May 2023 Admin talk contribs created page File:Docker image2hub.png
• 16:39, 25 May 2023 Admin talk contribs uploaded File:Docker image2hub.png
• 16:32, 25 May 2023 Admin talk contribs created page File:Dockercli work flow.png
• 16:32, 25 May 2023 Admin talk contribs uploaded File:Dockercli work flow.png