visionwiki

ct_server

Anonymous (anonymous@undisclosed.example.com) — 2019-12-12T14:38:24+0000

* 10 gigabit network * Acquisition server 10 TB * Reconstruction server 4TB-10 TB storage * Data can be stored on the reconstruction server (keep acquisition for acquisition)

ct_solution

Anonymous (anonymous@undisclosed.example.com) — 2019-10-22T10:03:23+0000

For the new CT scanner we will be needing a new storage server where the scan data will be exported to. This server will need a data management system to keep track of when data was created and to manage the lifetime of this data. A system will also be needed for companies to make reservations for the scanner. Internally requests are stored in a shared calander that will keep track of who is using the scanner and for what assignment.

dokuwiki_visielab

Anonymous (anonymous@undisclosed.example.com) — 2018-05-02T14:28:32+0000

dokuwiki This dokuwiki documentation server, resides on visiesrv2, as an LXC container called dokuwiki.

glpi

Anonymous (anonymous@undisclosed.example.com) — 2018-05-30T14:22:09+0000

GLPI As a replacement for OpenAudit, which was not free anymore, we are going to try this opensource packet. Needs PHP and Mysql * mysql root: * glpi user : link is GLPI

ict_admin

Anonymous (anonymous@undisclosed.example.com) — 2019-07-31T11:32:09+0000

Here admins can find more info about some servers/services, and how to add/delete users in the openLDAP directory , initially configured on sto3. visiesrv1 is the older webserver, and still provides access to an SVN server, and 2 websites , cadans and redmine. In the longer term, this server should be upgraded and serve as a backup of the newer server,

ict_d2_serverroom

Anonymous (anonymous@undisclosed.example.com) — 2019-07-12T15:23:05+0000

CDE D2 serverroom Almost all GPU servers (astra 2->9) are located in this room, where each server is provided whith redundant power supply and fast internet access and enough cool air. Recently (03/2018) the new storage server sto3 moved there as well and the configuration looks like this:

inventory

Anonymous (anonymous@undisclosed.example.com) — 2019-02-25T11:38:04+0000

Inventory System All new and available working IT systems and supplies have been added to the to a management system. You can find it at . Systems in use still need to be added to the system

new_server_version

Anonymous (anonymous@undisclosed.example.com) — 2019-08-07T12:39:35+0000

= Server installatie = (zie ook IPMI info) Booten met een sysrescue cd * execute een shell en dan de raid afbreken: mdadm --manage /dev/md''RAIDNUMMER'' --stop * de partitietabellen wissen: for a in a b c d ... ; do dd if=/dev/zero of=/dev/sd$a count=5000 ; done

nextcloud_visielab

Anonymous (anonymous@undisclosed.example.com) — 2018-05-08T13:59:59+0000

Nextcloud We decided to roll out our own private cloud, after experimenting with the UA's DatAnywhere, which is, well, almost unusable. Nextcloud is OpenSource software, without limitations on functionality. We configured our own server with it ( visiesrv2 ), and nextcloud is just a container on this server.

printers

Anonymous (anonymous@undisclosed.example.com) — 2019-02-25T10:20:02+0000

1st floor location type ip address description opposite N1.08 Ricoh MP C3502 143.169.49.61 opposite N1.08 HP Color Laserjet 4700 DTN 143.169.49.150 Supplies You can go for the original ones, please check at the web site of HP. A cheaper solution is to buy at 123ink, only minor point is that they don't take back used toners. Quality is decent.

printersetup

Anonymous (anonymous@undisclosed.example.com) — 2019-02-25T11:27:37+0000

How to install Ricoh MP C3502 You can find the install guide specific for your OS on pintra: install guide Make sure you select the correct printer type! Alternatively you can go to the network location \\eqtrk-print2@uantwerpen.be and enter the following credentials (press remember to avoid unnecessary logins):

procedure_new_server

Anonymous (anonymous@undisclosed.example.com) — 2018-06-13T07:16:31+0000

Server Hardware First of all, check . For storage servers, check (sto3/4 were ordered there). Supermicro are really good for storage, and support at serverdirect is quite good. e.g if you order a server for storage, zfs will be the preferred file system (used in sto1/2/3/4), so you don't need expensive RAID controllers but just HBA cards to connect the HD's (SAS). At serverdirect they will already configure this host card , so you just have …

procedure_new_workstation

Anonymous (anonymous@undisclosed.example.com) — 2018-06-11T13:30:25+0000

new workstation * Make a choice via the website . Find the login in document located Pintra->ICT somewhere. Standard config is XPS workstation with Intel i7. * We need a powerfull workstation, with an nvidia graphical card. Also qwerty keyboards (international students), a headset, and 2 displays. i opted for a

rack_n107

Anonymous (anonymous@undisclosed.example.com) — 2018-06-04T13:28:32+0000

N.107 The rack in room N107 is provided with an UPS (follow the red power cable). And the room is air-conditioned. in case of a power-failure, the UOS battery won't last longer than 20 minutes.

servers

Anonymous (anonymous@undisclosed.example.com) — 2020-01-02T10:50:46+0000

We have three sorts of servers at visionlab, those primarly intended for storage -> storage servers, and servers for more specific services like websites, source control, etc -> web servers, and last but not least, the servers with GPU's intended for calculations.

service_pydio

Anonymous (anonymous@undisclosed.example.com) — 2018-06-08T09:37:32+0000

pydio this is like nextcloud, but for larger data(sets). will be installed as a container on visiesrv2 LXC containers pydio user user pydio passwd mysql root mysql pydio user

someone_leaves

Anonymous (anonymous@undisclosed.example.com) — 2019-07-31T11:35:37+0000

Someone leaves When someone finishes their research, their data remains on the server and their account stays available. It is however convenient for the other project members to have access to their data to continue pending research. To deal with this issue we change the permissions for the users home directory to 770 and make all their files available to the group they are in. The example below shows how to achieve this for user

start

Anonymous (anonymous@undisclosed.example.com) — 2021-02-06T11:43:30+0000

ICT Servers * Servers : where are they and what do they provide * Server Administration * storage/GPU combination * Server Hardware * new server version * CT solution Services * Drupal website visielab * Nextcloud * dokuwiki * SVN * pydio * Inventory Management System * SFTP * visiesrv1 * digital certificates Skype / Twitter * Skype/Twitter PC workstations * Procedure for ordering new workstation * Dell XPS Printers * How to install Ricoh MP C3502…

sto3_configuration

Anonymous (anonymous@undisclosed.example.com) — 2018-05-15T07:52:44+0000

sto3 This supermicro server is ordered via ServerDirect. Original order can be found [ here ] hardware * intel XEON E5-2620V4 2.1GHz 2x * DDR43 32GB ECC 4x -> 128Gb * LSI MegaRaid SAS 9211 host controller * Seagate 6TB SAS 10x * Samsung 850 pro 256Gb SSD 2x

sto3_openldap

Anonymous (anonymous@undisclosed.example.com) — 2018-04-13T08:18:21+0000

openLDAP We use openLDAP for central user/group authentication. configuration the base configuration of LDAP is as follows : dn: dc=visielab,dc=be objectClass: top objectClass: dcObject objectClass: organization o: uantwerpen dc: visielab structuralObjectClass: organization dn: cn=admin,dc=visielab,dc=be objectClass: simpleSecurityObject objectClass: organizationalRole cn: admin description: LDAP administrator userPassword:: e1NTSEF9emdJcVpQUW1RUmYrNVRvZmp1K2o4SEZrWnk5NFovQjI= structuralO…

sto3_sftp

Anonymous (anonymous@undisclosed.example.com) — 2022-09-03T00:35:55+0000

sdqdsq

sto3_user_administration

Anonymous (anonymous@undisclosed.example.com) — 2019-11-21T15:33:53+0000

User administration To easy the creation of users, I made a couple of bash scripts that do all the magic. They are located in the directory /usr/local/bin and are called add_backup_user.sh and remove_backup_user.sh. These users will be mounted on all tesla servers.

sto3_zfs

Anonymous (anonymous@undisclosed.example.com) — 2018-04-16T07:35:13+0000

ZFS the storage space on sto3 is based on ZFS, a volume-manager/filesystem original designed by Sun Microsystems, and only recently released as openSource. ZFS is well tested and a standard package on Ubuntu. You don't need expensive RAID controllers for ZFS, because RAID is natively included in ZFS. The ZFS pool is called data, and has the currently those datasets defined:

sto4_openldap

Anonymous (anonymous@undisclosed.example.com) — 2018-04-20T13:03:10+0000

openLDAP client A server that wishes to use the openLDAP server (sto3.visielab.uantwerpen.be) must be configured as a ldapclient. Install the following extra packages apt-get install ldap-utils apt-get install libnss-ldap libpam-ldap apt-get install nscd

vegan

Anonymous (anonymous@undisclosed.example.com) — 2018-06-15T09:45:11+0000

dit gaat over vegan

visielab_skype_twitter

Anonymous (anonymous@undisclosed.example.com) — 2018-05-02T11:58:05+0000

Skype visielab has a skype account. It has been made with the email visielab.uantwerpen@gmail.com. The password to use for this account is At a certain moment, I had to enter a birthday date for the skype user. This was chosen randomly. Twitter twitter account is

visielab_svn

Anonymous (anonymous@undisclosed.example.com) — 2018-05-08T13:05:32+0000

SVN Located on the old visiesrv1. Should like to move it, but first have to checkout how it is used internally. And is this Redmine still needed?

visielab_website

Anonymous (anonymous@undisclosed.example.com) — 2018-05-02T13:53:52+0000

visionlab website The visonlab website is located on one of the LXC containers visiesrv2. For the moment being, visielab-test hosts the visielab website. Is made with Drupal 7.x. Original design by Toon Huysmans . Contains the Biblio .module. It may be necessary to apply this patch for drupal

visiesrv2_configuration

Anonymous (anonymous@undisclosed.example.com) — 2018-03-23T16:05:17+0000

visiesrv2 the original order from dell can viewed [ here]. hardware This is a Dell PowerEdge R330 with the following configuration: * Intel Xeon E3-1270 3,8GHz, 4C/8T (72Watt) * 16GB UDIMM * 10k RPM SAS 2.5 inch 600GB (3x) * 240Gig SSD 6Gbps 2.5 inch (2x)

visiesrv2_lxc_containers

Anonymous (anonymous@undisclosed.example.com) — 2018-06-15T14:15:21+0000

LXC containers The current defined containers are listed here. Note that the actual active container for visionlab website is visielab-test NAME STATE IPV4 IPV6 TYPE SNAPSHOTS nextcloud RUNNING 10.27.117.84 (eth0) PERSISTENT 6

websites_digital_certificates

Anonymous (anonymous@undisclosed.example.com) — 2018-06-12T09:02:59+0000

digital certificates If a website is a subdomain of uantwerpen.be, the university can provide digital certificates for free for that website (e.g ). This is a good thing, because we can work with https instead of http. Keep in mind that these certificates

workstations_dell_xps

Anonymous (anonymous@undisclosed.example.com) — 2018-04-06T20:57:36+0000

Dell XPS this configuration can be ordered via our premier Dell partnership and the well known website. The current best configuration is at least Intel i7, nvidea 1070 GTX, SSD 256 (PCiE), a second HD of 2TB and 64GB of DDR memory. An example of such a configuration can be found

zfs_backup

Anonymous (anonymous@undisclosed.example.com) — 2018-05-17T13:10:33+0000

ZFS snapshots & backup One of the great things of ZFS is the easy of use and speed of snapshots. With snapshots, one can create backups on the fly. We use the following simple snapshot schema, especially because most data are datasets, and don't change that often. If faster changing data is stored on the storage server, these schema's may need some modifications (like daily snapshots)'