All public logs

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

• 13:13, 26 April 2023 Plinich talk contribs created page Monitor2 (Created page with "The second monitoring system/framework in the New World ('''monitor2''') is implemented on the server https://nw-syd-monitor2.cse.unsw.edu.au/. Unlike monitor1 it does not use Nagios and, implicitly, does not generate any sort of alarms. Instead, monitor2 collects and graphs data sampled from various servers. It is designed to implement a "standard" way of collecting data, storing it and graphing it, regardless of the type of data we talk about. It uses SNMP to...")
• 13:03, 26 April 2023 Plinich talk contribs created page Monitor1 (Created page with "This pages describes the original, and now partly-superseded, monitoring framework implementation... The basic monitoring framework implemented in the New World infrastructure is designed to monitor and report on problems and faults with services or hosts AND to record historical performance data and provide graphing thereof. The framework is not intended to be fancy, but to provide a "standard" for adding monitoring for new services and/or hosts, and to provide a...")
• 16:56, 3 April 2023 Plinich talk contribs created page UDB (Created page with "'''UDB''' is an acronym for User Database. It refers to CSE databases whose primary, but not sole, purpose is to supplement staff and student information provided by UNSW to allow the information to be used to manage CSE IT resources. There are two UDB's: The "new" UDB uses PostgreSQL and OpenLDAP (server). The "old" UDB uses custom software developed in-house running over NIS/SunYP. Eventually, it is hoped, this will go away and the "only" UDB will then be th...")
• 16:43, 3 April 2023 Plinich talk contribs created page VMware (Created page with "'''VMware''' refers to the technology developed by VMware, Inc., used in CSE to instantiate virtual servers and networks. CSE uses VMware primarily to create two different types of virtual host: * Back-end servers supporting undergraduate teaching (including DHCP, DNS, LDAP and UDB servers), and * Computers used by researchers. See also [https://en.wikipedia.org/wiki/VMware VMware].")
• 16:38, 3 April 2023 Plinich talk contribs created page UNC (Created page with "'''UNC''' is a way of representing the location of a network resource, typically a file or <nowiki>[home]</nowiki> directory. See [https://en.wikipedia.org/wiki/Path_(computing)#Universal_Naming_Convention Universal Naming Convention @ Wikipedia].")
• 16:34, 3 April 2023 Plinich talk contribs created page Vlabserver (Redirected page to Host class) Tag: New redirect
• 15:10, 3 April 2023 Plinich talk contribs created page SSH (Created page with "'''[https://en.wikipedia.org/wiki/Secure_Shell Secure Shell]''' @ Wikipedia is an encrypted remote access network protocol commonly used to access CSE login servers. See also <code>man ssh</code>.")
• 15:07, 3 April 2023 Plinich talk contribs created page Login server (Created page with "A CSE '''login server''' is a general-purpose, shared server available for user by CSE staff and students. Access is via SSH. Most login servers are in a DNS pool behind the DNS name <code>login.cse.unsw.edu.au</code> and they can be reached from the wider/public Internet. Login servers have the same software set as physical lab computers and VLAB servers. Typically, VLAB servers and login servers are actually the same hosts pulling double duty.")
• 14:56, 3 April 2023 Plinich talk contribs created page NFS (Created page with "The [https://en.wikipedia.org/wiki/Network_File_System Network File System @ Wikipedia] (NFS) is the distributed file system used in CSE to make users' home directories available on all login, VLAB and lab computers. It transparently supports Linux-style file system semantics (user, group and other; read, write and execute), a significant benefit for undergraduate students who only need to learn that one set of semantics.")
• 13:09, 3 April 2023 Plinich talk contribs created page VNC (Created page with "See [https://en.wikipedia.org/wiki/Virtual_Network_Computing Virtual Network Computing] @ Wikipedia.")
• 13:06, 3 April 2023 Plinich talk contribs created page TigerVNC (Created page with "REDIRECT [https://tigervnc.org/ https://tigervnc.org/]")
• 12:58, 3 April 2023 Plinich talk contribs created page File:Vlabgateway.png
• 12:58, 3 April 2023 Plinich talk contribs uploaded File:Vlabgateway.png
• 12:48, 3 April 2023 Plinich talk contribs created page VLAB (Created page with "'''VLAB''' (Virtual Lab) is a remote access virtual lab environment. It provides a virtual desktop environment that students and other users can access either via a VNC client (preferred) or via a web browser<ref>[https://vlabgateway.cse.unsw.edu.au/ https://vlabgateway.cse.unsw.edu.au/]</ref>. It is available 24/7, all year around. This environment should very closely parallel that which the students experience when using computers in CSE physical labs. The software...")
• 12:41, 3 April 2023 Plinich talk contribs created page File:Tigervnc prompt.png
• 12:41, 3 April 2023 Plinich talk contribs uploaded File:Tigervnc prompt.png
• 12:13, 3 April 2023 Plinich talk contribs deleted page Lifecycle management of accounts (Author request: content was: "#REDIRECT Lifecycle management of accounts (draft notes)", and the only contributor was "Plinich" (talk))
• 12:13, 3 April 2023 Plinich talk contribs moved page Lifecycle management of accounts to Lifecycle management of accounts (draft notes)
• 12:10, 3 April 2023 Plinich talk contribs deleted page Test page (Author request: content was: "Sandpit for experimentation Additional Some more Raggedy Connecting to Wifi")
• 12:09, 3 April 2023 Plinich talk contribs deleted page Linux namespaces and cgroups (Author request: content was: "<p style="color: red;">This is rubbish and needs to be rewritten.</p> Some text. The Linux kernel provides two interesting mechanisms to manage user sessions. Both play an important part in New World. These mechanisms are namespaces and cgroups. == Namespaces == See also <code>man unshare</code>. A user process can, if it chooses to look, see various elements of the h...", and the only contributor was "Plinich" ([[User t...)
• 12:39, 30 March 2023 Plinich talk contribs created page Kerberos (Created page with "'''Kerberos''' is a ticket-based network authentication system. Microsoft's Active Directory uses an implementation of Kerberos to allow users and network hosts to authenticate and access services. See [https://en.wikipedia.org/wiki/Kerberos_(protocol) Kerberos @ Wikipedia].")
• 12:35, 30 March 2023 Plinich talk contribs created page SMB3 (Redirected page to CIFS) Tag: New redirect
• 12:34, 30 March 2023 Plinich talk contribs created page CIFS (Created page with "See [https://en.wikipedia.org/wiki/Server_Message_Block Server Message Block @ Wikipedia].")
• 12:29, 30 March 2023 Plinich talk contribs deleted page CIFS (Broken redirect: content was: "#REDIRECT [https://en.wikipedia.org/wiki/Server_Message_Block]", and the only contributor was "Plinich" (talk))
• 12:27, 30 March 2023 Plinich talk contribs created page CIFS (Created page with "#redirect [https://en.wikipedia.org/wiki/Server_Message_Block]")
• 18:40, 29 March 2023 Plinich talk contribs created page /unsw (Created page with "The <code>/unsw</code> top-level directory on all user-loginable New World hosts is a file system mount point managed by the <code>autofs</code> automounter. When a user tries to access <code>/unsw/''zID''</code>, where <code>zID</code> is that same user's own UNSW zID, the automounter will attempt to mount that user's UNSW home folder ('''not''' CSE home directory) at that location. This gives the user transparent read/write access to their UNSW home folder from CS...")
• 16:09, 27 March 2023 Plinich talk contribs created page Experimental gitlab server (Created page with "# Host is called nw-syd-gitlab and is in <code>hostlist.csv</code> (cfengine) to reserve the IP address against use by anyone else # The IP address is 10.197.85.252. Due to it being in <code>hostlist.csv</code>, there will be an entry for it in <code>/etc/hosts</code> on all cfengine-managed hosts (i.e., login and VLAB servers, lab computers) # In AWS, set up the EC2 instance on the sydney-hosts subnetwork with free-for-all security group and 1TB of had disk # Af...")
• 09:30, 23 March 2023 Plinich talk contribs created page Ceph testing and development cluster (Created page with "== Overview == * The *Ceph testing and development cluster* is a desktop Ceph cluster built using old lab HP Elitedesk mini PC's * It is located in Peter's cubicle * The cluster itself is on a private subnetwork behind one of the PC's which functions as a gateway * The gateway is cephtest.cse.unsw.edu.au (129.94.173.173) and can be reached by SSH from CSE's trust. untrusted and server subnetworks * The cluster nodes should be listed in /etc/hosts on cephtest. The cluste...")
• 14:03, 24 Ocak 2023 Jbc talk contribs created page Connecting to Wifi (Created page with "= UniWide - UNSW Wireless Network = [https://www.it.unsw.edu.au/students/uniwide/index.html UniWide] is the UNSW campus-wide wireless network for all staff and students, maintained by [https://www.it.unsw.edu.au/staff/support/index.html UNSW IT] - contact them directly for support. ; Network SSID : <code>uniwide</code> ; Username : Your zID ; Password : Your zPass For more information, see these guides for [https://www.it.unsw.edu.au/students/uniwide/index.html studen...")
• 14:29, 27 October 2022 TechDocs talk contribs created page Change management pages (Created page with "<span style="color: red;">Only user TechDocs to add pages into this hierarchy!</span> * Services ** CM Home directory service ** CM Authentication service ** CM Mailing-list service * Policies ** [CM Purchasing policies]] ** [CM Menu/anti-menu policies]] * Equipment ** CM Individual computers and hosts ** CM Labs ** CM Data centres ** CM Laptop locker ** CM Equipment repairs * Infrastructure ** CM Networking ** CM Power ** CM Em...")
• 13:59, 27 October 2022 User account TechDocs talk contribs was created by Plinich talk contribs (Account for managing group watchlist emails)
• 13:48, 27 October 2022 User account TestDocs talk contribs was created by Plinich talk contribs (Account for group watchlist emails)
• 13:39, 27 October 2022 Testuser talk contribs created page Talk:Test page (Created page with "Might need to make additional changes to this page")
• 13:29, 27 October 2022 Plinich talk contribs created page Test page (Created page with "Sandpit for experimentation")
• 11:39, 24 October 2022 Plinich talk contribs created page Ceph (Created page with "== Overview of Ceph == [https://docs.ceph.com/en/quincy/ Welcome to Ceph]")
• 10:32, 24 October 2022 Plinich talk contribs created page File:Storage cluster sketch - concept.png
• 10:32, 24 October 2022 Plinich talk contribs uploaded File:Storage cluster sketch - concept.png
• 10:26, 24 October 2022 Plinich talk contribs created page Storage and compute cluster (Created page with "The ''storage and compute cluster'' is intended as a replacement for CSE's VMWare and SAN infrastructure. Its primary functions are: # A resilient, redundant storage cluster consisting of cheap<nowiki>[-ish]</nowiki> rack-mounted storage nodes running Linux and Ceph using local SSD drives, and # Multiple compute nodes running Linux and QEMU/KVM acting as both secondary storage nodes and virtual machine hosts. These compute nodes are similar in CPU count and RAM...")
• 14:02, 19 August 2022 Jbc talk contribs created page Install and configure a Grafana server (initial stub)
• 14:21, 9 August 2022 Plinich talk contribs created page ZZEN9217 H6 O.S. Fundamentals for Security: VM platform notes (Created page with "* Testing on [AWS] nw-syd-vx[12] using QEMU in emulation mode rather than hypervisor/KVM mode * Images and scripts in /usr/local/qemu_machines + /usr/local/bin/start(win|kali) + /etc/sudoers.d/start(win|kali) * Installed qemu-system-x86 and bridge-utils packages * startkali: starts Kali Linux, includes second interface (eth1) for link to Windows XP host established via up/down scripts for QEMU which set up a bridge and join eth1 (tap device) to the bridge. On termination...")
• 15:18, 1 August 2022 Plinich talk contribs created page AWS IPsec links (Created page with "{| !AWS region !VPN name !VPN ID !Description !Customer gateway !Remote CIDR !Type !Tunnel 1 !Tunnel 2 !Comments |- |Sydney |aws-ipsec-to-k17 |vpn-0329f8fc12afa0c09 |cserouter1 |129.94.39.21 |0.0.0.0/0 |ipsec.1 |52.63.191.33<br />169.254.187.12/30 |52.64.121.168<br />169.254.38.88/30 |All tunnel options set to defaults at AWS end |- |Sydney |aws1 |vpn-0640a3802b05574e5 |vmfarm endpoint for testing |129.94.242.18 |172.16.254.0/24 |ipsec.1 |13.238.86.95<br/>169.254.52.236/...")
• 13:59, 26 July 2022 Plinich talk contribs created page CSV (Created page with "'''CSV''' is a text file format used for representing field/record-type data. The <code>hostlist.csv</code> file uses s simplified form this format. See: [https://en.wikipedia.org/wiki/Comma-separated_values Comma-separated values file format]")
• 13:50, 26 July 2022 Plinich talk contribs created page Promises.cf (Created page with "Type: file Location: <code>/var/lib/cfengine3/inputs/promises.cf</code> on cfengine client hosts<br /> ALSO<br /> Location: <code>/var/lib/cfengine3/masterfiles/promises.cf</code> on the cfengine hub This file contains the configuration "promise" bundles used by <code>cf-agent</code>, <code>cf-execd</code> and <code>cf-serverd</code>. In short, the file tells <code>cf-agent</code> what to do.")
• 13:45, 26 July 2022 Plinich talk contribs created page /usr/local/warehouse (Created page with "Type: directory Location: cfengine hub The main directory on the hub from whose subdirectories <code>cf-agent</code> collects files (mostly configuration files) for installation on the hosts on which it runs. See also: <code>cf-serverd</code>")
• 13:40, 26 July 2022 Plinich talk contribs created page Update hosts (Created page with "Type: script Location: <code>/usr/local/administration/bin/update_hosts</code> on the cfengine hub. See: Host generator")
• 13:38, 26 July 2022 Plinich talk contribs created page Nodeinfo (Created page with "Type: file '''<code>nodeinfo</code>''' is an Old World configuration file used by conform. It is located at <code>/home/conform/config/cse/nodeinfo</code>. It primarily contains host information used to configure conformed hosts as well as to populate DNS zone files. <code>hostlist.csv</code> is very roughly equivalent in the New World although <code>hostlist.csv</code> is much simpler than <code>nodeinfo</code>.")
• 11:18, 26 July 2022 Plinich talk contribs created page Debian (Created page with "'''Debian''' is a common and standard Linux distribution. All New World hosts run Debian. See the [https://www.debian.org/ Debian website].")
• 11:14, 26 July 2022 Plinich talk contribs created page General description of installation of hosts with cfengine (Created page with "The installation of New World hosts follows a number of principles: # All hosts run Debian # cfengine is used to take a host from a minimally-installed Debian condition to CSE-usefulness<ref>Amongst other things, this "usefulness" refers to being able to access CSE's UDB, access home directories, have CSE-specific programs and tools installed, have a full list of CSE hosts and IP addresses in <code>/etc/hosts</code>, and have a full set of Debian package...")
• 16:47, 25 July 2022 Plinich talk contribs created page Debpkgsv2 (Created page with "I'm planning on replacing the original package install stuff for system packages with debpkgsv2 as we do the lab/login/VLAB hosts move for T3 so "debpkgsv2" will just disappear and become the norm. It appears stable now, but I'd like to see it work on lab computers to be sure. It's actually simple. One premise is that all initial installs -- be they in AWS, hosts using DHCP/preseed, or hosts with Debian boot DVD and no preseed (and even static IP address) -- can be SSH...")
• 15:37, 22 July 2022 Plinich talk contribs created page Installing an AWS VLAB server... and then adding PostgreSQL server and /localstorage (Created page with "# The AWS subnet ID will probably be nw-sydney-hosts. This determines the subnetwork address range. # On then cfengine hub, add an entry for the new host into <code>hostlist.csv</code> and run <code>update_hosts</code>. # On baton, add an entry for the host into <code>nodeinfo</code> and run <code>/home/ss/named_update</code>. # On AWS, create a new instance: #* Select the instance type, memory root disk size and additional disk and size, if required, for...")