iangow
commented
4 years ago @bdcallen
- Try the commands at the bottom of Antony's email.
- Check the contents of
/etc/resolv.confand post here.
Closed iangow closed 3 years ago
iangow
commented
4 years ago @bdcallen
/etc/resolv.conf and post here.iangow
commented
4 years ago The IT guy I'm conversing with suggests that this is because our system is hitting Google's DNS rather than Unimelb's, and that someone probably hard-coded this. Do you know of any reason why this might be the case?
I don't recall changing those things, but we had trouble with getting the machine on the network at some point and /etc/resolv.conf might have changed then. I'm not sure we want to mess with the DNS settings while we're out of the office.
bdcallen
commented
3 years ago @iangow Here's the last correspondence I had with Antony. My comment below his contains the running of cat /etc/resolv.conf, smbclient -L //172.27.70.11 -U callenb@unimelb.edu.au, and smbclient -L //172.20.1.43 -U callenb@unimelb.edu.au. The first shows that both IP addresses were in resolv.conf, the latter two showed that hardcoding the IP address worked for looking at the share folders available
Antony Smith 02/10/2020 09:11:29
reply from: antony.smith@unimelb.edu.au
Hi Benhamin,
The ip address starting with 127 is a loop back ip, it's an internal ip range for the system. If you do an nslookup localhost you should see an returned ip address of 127.0.0.1.
You may notice the system times out when looking for sites, network shares, etc that have the unimelb.edu.au domain value as your DNS is pointing to Google and ask it where something.unimelb.edu.au is instead of asking the UoM DNS where this something is.
However this might have a purpose so you should consult your manager about it.
Is there anything else I can help you with or are you happy for me to close off this ticket?
Cheers
Antony
From: University Services uni-services@unimelb.edu.au Sent: Tuesday, 29 September 2020 4:57 PM To: Antony Smith antony.smith@unimelb.edu.au Subject: A comment has been added to INC1093840
University of Melbourne Service Notification
Hello Antony,
A new comment has been added to an incident for Benjamin Callen.
Issue description: Linux - Unable to map fileshare path
Comments:
29/09/2020 16:56:43 - Benjamin Callen Additional comments (Customer visible) Hi Antony,
It seems both IP addresses are there
bdcallen@igow-z640:~$ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
# 127.0.0.53 is the systemd-resolved stub resolver.
# run "systemd-resolve --status" to see details about the actual nameservers.
nameserver 8.8.8.8
nameserver 127.0.0.53
search unimelb.edu.auAlso, bypassing the DNS worked
bdcallen@igow-z640:~$ smbclient -L //172.27.70.11 -U callenb@unimelb.edu.au
Enter callenb@unimelb.edu.au's password:
Sharename Type Comment
--------- ---- -------
5610 Disk
facp-projects$ Disk Find and Connect project
facp-web$ Disk Find and Connect project
5220 Disk
VCCC_NPS_Cancer01$ Disk VCCC hidden share
NPS_Res_Data$ Disk NPS Research Data
8160 Disk Graduate Student Association
6500 Disk Botany Laboratory
031 Disk Student Programs
030 Disk Academic Enrichment Services
6150 Disk Information Systems - HISTORICAL
5760 Disk Ophthalmology Eye and Ear Hospital
035 Disk Wellbeing Services
019 Disk Commercialisation
5950 Disk Clinical and Biomedical Sciences
5600 Disk Eastern Hill Academic Centre
5580 Disk Clinical School - Royal Melbourne Hospital
5400 Disk Austin Academic Centre
5180 Disk Share associated with Virtual Volume 5180
842 Disk ITS
508 Disk Centre for Neuroscience
060 Disk University Services
020 Disk Office of the Vice Principal and Academic Registrar
VCCC_NPS_Cancer01 Disk
Users Disk uom-file user homedrives
uccx-reports$ Disk
TEST Disk TEST share only
student1-test$ Disk Student1 Test
student1-prod$ Disk Student1 Prod
q-master Disk q-master
oracle-softdist Disk Oracle software distribution point
mspace03$ Disk
mspace02$ Disk Share associated with uom-data volume 460
mspace01$ Disk Share associated with Virtual Volume mspace01
MOE$ Disk Senior Vice-Principal
meridian-test$ Disk Meridian upgrade (software that manages all the floorplans)
meridian-prod$ Disk Meridian upgrade (software that manages all the floorplans)
letest$ Disk
ipc$ IPC
international-house$ Disk International House (8220)
ICC Disk Share associated with Virtual Volume ICC
Design_Print_Merch Disk -
Citrix Disk Citrix Profiles
c$ Disk
auditlogs Disk uom-file-svm audit log data
ArtsOld$ Disk Share associated with Virtual Volume ArtsOld$
ADT Disk Historical auditing data
admin$ Disk
9790 Disk Project Services
9780 Disk Legal, Governance and Risk
9770 Disk Infrastructure Services
9760 Disk Finance and Employee Services
9750 Disk External Relations (W/in Uni Services)
9740 Disk Business Intelligence and Reporting
9730-librfid$ Disk
9730 Disk Academic Services and Registrar
9720 Disk University Procurement Services
9710 Disk Research, Innovation and Commercialisation
9700 Disk University Services
9560 Disk Medical Bionics Department
9520 Disk Florey Department of Neuroscience and Mental Health
952 Disk Florey Neuroscience Institute
9510 Disk The Sir Peter MacCallum Department of Oncology
9370 Disk Chancellery International
9350 Disk Research
9340 Disk Academic (a portfolio of Chancellery)
9330 Disk Policy and Projects
9320 Disk Engagement
9310 Disk Administration and Finance (portfolio of Chancellery)
9300 Disk Chancellery
8840 Disk Nossal Institute Ltd
880 Disk Children's Services
867 Disk Bio21 Australia Limited
8650 Disk CERA Ltd
8640 Disk MU Student Union
849 Disk Share associated with Virtual Volume 849
841 Disk ITS
839 Disk ITS
838 Disk ITS
835 Disk ITS
834 Disk ITS
832 Disk ITS
831 Disk ITS
830 Disk ITS
824 Disk Medley Hall
8150 Disk University of Melbourne Student Union
814 Disk Grattan Institute
8130 Disk Melbourne University Publishing
7890 Disk BIO21 Institute
750 Disk Victorian College of the Arts
742 Disk Melbourne Conservatorium of Music
741 Disk VCA and Music
732 Disk Law
702 Disk ABP
6550 Disk Optometry and Vision Sciences
6400 Disk Physics
6300 Disk School of BioSciences
6250 Disk Earth Sciences
625 Disk Optometry (625)
6200 Disk Mathematics and Statistics
6100 Disk Chemistry
6040 Disk Australian Mathematical Sciences Institute
6030 Disk Science, Faculty Secretariat
5970 Disk Medical Biology (W.E.H.I.)
5900 Disk North West Academic Centre
5870 Disk Rural Clinical School
5850 Disk General Practice
5790 Disk Obstetrics and Gynaecology Royal Women's Hospital/Mercy
5770 Disk Audiology and Speech Pathology
5710 Disk Paediatrics Royal Children's Hospital
5700 Disk School of Health Sciences
5690 Disk Clinical Pathology
5680 Disk Clinical School - St Vincent's Hospital
5660 Disk Surgery - St Vincent's Hospital
5630 Disk Medicine - St Vincent's Hospital
5570 Disk Medicine and Radiology
5560 Disk Surgery - Royal Melbourne Hospital
5550 Disk Radiology
5540 Disk Psychiatry
5530 Disk Medicine - Royal Melbourne Hospital
5520 Disk Surgery
5510 Disk Medical Education
5500 Disk Royal Melbourne Hospital Academic Centre
5480 Disk Clinical School - Austin Health
5460 Disk Surgery - Austin Health
5430 Disk Medicine - Austin Health
5360 Disk Physiology
5340 Disk Pharmacology and Therapeutics
5310 Disk Pathology
5300 Disk School of Biomedical Sciences
5270 Disk MDU Microbiology
5260 Disk Microbiology and Immunology
5250 Disk Surgery – Western Health
5230 Disk Medicine – Western Health
5210 Disk Biochemistry and Molecular Biology
5200 Disk Otolaryngology
5160 Disk Anatomy and Neuroscience
5140 Disk Nursing
5130 Disk Physiotherapy
5120 Disk Melbourne School of Psychological Sciences
5110 Disk Melbourne Dental School
5100 Disk Melbourne Medical School
5090 Disk Nossal Institute for Global Health
5080 Disk Centre for Neuroscience Research
5070 Disk Centre for Youth Mental Health
5050 Disk Melbourne School of Population and Global Health
5040 Disk Rural Health Academic Centre
5010 Disk Peter Doherty Institute
5000 Disk Medicine, Dentistry and Health Sciences
460 Disk Melbourne Graduate School of Education
436 Disk Mechanical Engineering
432 Disk MSE
431 Disk Electrical and Electronic Engineering
418 Disk Computing and Information Systems
4140 Disk Electrical Mechanical and Infrastructure Engineering
411 Disk Chemical and Biomolecular Engineering
400 Disk Faculty Melbourne School of Engineering
360 Disk Melbourne School of Graduate Research
3400 Disk Melbourne School of Professional and Continuing Education
336-hilda-training$ Disk previously called 333-fbe training
336 Disk Melbourne Institute of Applied Economic and Social Research
333 Disk Finance
325 Disk Management and Marketing
316 Disk Economics
306 Disk Accounting and Business Information Systems
304 Disk Graduate School of Business and Economics
300 Disk Business and Economics
286 Disk Veterinary Hospital
2540 Disk Vet and Ag Science
251 Disk Share associated with Virtual Volume 251
2200 Disk Forest and Ecosystem Science
220 Disk Share associated with Virtual Volume 220
208 Disk Faculty of Veterinary and Agricultural Sciences
2070 Disk Resource Management and Geography
207 Disk
200 Disk Share associated with Virtual Volume 200
1960 Disk Social Work
166 Disk -
151 Disk Melbourne School of Government
131 Disk -
119 Disk Arts: Languages and Linguistics
114 Disk Arts: Graduate School of Humanities and Social Sciences
112 Disk Arts & Music Student Centre
110 Disk Arts: Ssia Institute
108 Disk Arts
106 Disk Arts: Culture and Cummunication
103 Disk Arts Business Centre
100 Disk Arts: Office of the Dean
099 Disk Business Centre (Administrative Divisions)
098 Disk Carlton Connect
097 Disk Finance and Planning
095 Disk Share associated with Virtual Volume 095
092 Disk Asialink
077 Disk Property and Campus Services
066 Disk Internal Audit
062 Disk Major Projects
047 Disk Share associated with Virtual Volume 047
041 Disk Human Resources
039 Disk Student Services
038 Disk The Ian Potter Museum of Art (Faculty of Arts staff only)
034 Disk Share associated with Virtual Volume 034
033 Disk Office of Admissions
032 Disk University Secretary
028 Disk Knowledge Transfer and Partnerships
027 Disk General Counsel and Legal Services
024 Disk Melbourne Research
023 Disk Eastern Precinct Student Centre
021 Disk Centre for Indigenous Education
016 Disk Chief Financial Officer
015 Disk Senior Vice-Principal
014 Disk Office of the Provost
011 Disk Marketing and Communications
010 Disk DVC (Global Engagement)
008 Disk DVC (University Affairs)
007 Disk OHS & Injury Management
006 Disk Office of the Vice-Chancellor
0000 Disk Softdist
SMB1 disabled -- no workgroup available
bdcallen@igow-z640:~$ smbclient -L //172.20.1.43 -U callenb@unimelb.edu.au
Enter callenb@unimelb.edu.au's password:
Sharename Type Comment
--------- ---- -------
ADMIN$ Disk Remote Admin
C$ Disk Default share
D$ Disk Default share
E$ Disk Default share
EcoCom Disk
EcoComT Disk
EventLogs$ Disk Archived Event Logs
F$ Disk Default share
FBE Disk
G$ Disk Default share
H$ Disk Default share
I$ Disk Default share
IPC$ IPC Remote IPC
mdhs Disk
MDHS-01 Disk
MDHS-02 Disk
MDHS-Admin Disk
MDHS-BSAC Disk
MDHS-Clinical Disk
MDHS-Research Disk
MSE Disk
MSHS Disk
MSPGH Disk
MSPS Disk
NETLOGON Disk Logon server share
RMH Disk
SYSVOL Disk Logon server share
UoM Disk
UoM-Trial Disk
SMB1 disabled -- no workgroup availableIs there a way to bypass the DNS with respect to doing the mount?
Cheers, Ben
bdcallen
commented
3 years ago @iangow
(base) bdcallen@igow-z640:~$ nslookup localhost
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: localhost.unimelb.edu.au
Address: 127.0.0.1igow@igow-z640:~/git/edgar$ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
# 127.0.0.53 is the systemd-resolved stub resolver.
# run "systemd-resolve --status" to see details about the actual nameservers.
nameserver 8.8.8.8
nameserver 127.0.0.53@bdcallen So just hard-code the IP address for now and check that you can backup there. (For example, try #20.) Then close this issue.
Hi Benjamin,
It seems you are hitting Google's DNS server instead of the Uni's DNS server. This suggests someone has hardcoded your DNS settings on the system.
Google's DNS
However the DNS, values from the IP command show the Uni's DNS servers which are obtain from your DHCP network connection.
Authoritative answers can be found from:
Just check the contents of this configuration file to validate your DNS settings
The three last lines on DHCP SOE ubuntu 20.04 system have these values
And I suspect your values will differ and have the IP address
8.8.8.8in there.This means that the DNS on system is searching Google's DNS for a Unimelb hostname and asking it to resolve it, which could explain the timeout values. In this case I'd suggest you try the following command which should bypass DNS system and go straight to the host itself using the hosts/file shares IP address.
I can't log into the system using any of the standard UoM admin accounts so it's definitely a BYO device, plus the hostname doesn't meet UoM standards. Currently we are just in the pilot test phase of the Ubuntu 20.04 and 18.04 SOE is the current stable release.
Cheers
Antony