In this video we review the necessary steps to set up an Ubuntu server for a remote ssh connection and how to connect to it remotely. We look at 2 different methods of connecting remotely.  WSL (Windows Sub System For Linux) and Putty.  From a Linux host you can just launch the terminal.

The commands used in this setup are as follows:

On the host (Ubuntu server):

  1. sudo apt-get update
  2. sudo apt-get upgrade
  3. sudo apt-get install ssh

On the ssh client (In a terminal or WSL)

  1. ssh username@host (IP  or hostname)

If you are using putty the you will configure the GUI with at least the minimum settings seen below:

putty 

 You should now be at the login prompt and be able to log in as the primary user from your Ubuntu server. Using this method is fine in your in a LAN but if you are connecting to a server outside of your LAN, there are several other security steps you will want to take.

Most Popular

Install Ubuntu Server - (18.04---64bit)

We use the traditonal installer to install Ubuntu server 18.04 in this video. You will need to download Ubuntu server from the Ubuntu repository using the link below or by going to their website and downloading it


Cyber Security

  • Dell security advisory (AV25-384)
    01 July 2025

    Serial number:AV25-384
    Date:June 30, 2025

    Between June 23 and 29, 2025, Dell published security advisories to address vulnerabilities for the following products:

    • iDRAC10 – versions prior to 1.20.50.50
    • NetWorker – versions 19.12 to 19.12.0.1 and versions prior to 19.11.0.5
    • Dell Open Manage Network Integration – versions prior to 3.7
    • Dell PowerMax EEM 5978 – versions prior to 5978.714.714.10730
    • Dell PowerMax EEM 10.2.0.1 – versions prior to 10.2.01 Patch 10732
    • Dell PowerMaxOS 5978 – versions prior to 5978.714.714.10730
    • Dell PowerMax OS 10.2.0.1 – versions prior to 10.2.0.1 Patch 10732
    • PowerProtect Cyber Recovery – versions prior to 19.20
    • Dell Secure Connect Gateway - Appliance – versions prior to 5.30.0.14
    • Solutions Enabler – versions prior to 9.2.4.11 and versions prior to 10.2.0.5
    • Dell Storage Monitoring and Reporting – versions prior to 5.1.1.0
    • Dell Storage Resource Manager (SRM) – versions prior to 5.1.1.0
    • Unisphere for PowerMax – versions prior to 9.2.4.17 and versions prior to 10.2.0.12
    • Unisphere 360 – versions prior to 9.2.4.37

    The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

  • IBM security advisory (AV25-383)
    01 July 2025

    Serial number:AV25-383
    Date:June 30, 2025

    Between June 23 and 29, 2025, IBM published security advisories to address vulnerabilities in multiple products.

    The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

  • Ubuntu security advisory (AV25-382)
    01 July 2025

    Serial number:AV25-382
    Date:June 30, 2025

    Between June 23 and 29, 2025, Ubuntu published security notices to address vulnerabilities in the Linux kernel affecting the following products:

    • Ubuntu 25.04
    • Ubuntu 24.04 LTS
    • Ubuntu 22.04 LTS
    • Ubuntu 20.04 LTS

    The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

  • [Control systems] CISA ICS security advisories (AV25-381)
    01 July 2025

    Serial number:AV25-381
    Date:June 30, 2025

    Between June 23 and 29, 2025, CISA published ICS advisories to address vulnerabilities in the following products:

    • ControlID iDSecure On-premises – version 4.7.48.0 and prior
    • Delta Electronics CNCSoft – version v1.01.34 and prior
    • Kaleris Navis N4 – versions prior to 4.0
    • MICROSENS NMP WEB+ – version 3.2.5 and prior
    • Mitsubishi Electric Air conditioning systems – multiple versions and models
    • Parsons Utility Enterprise Data Management – versions 5.18, 5.03, 3.30, and versions 4.02 to 4.26
    • Parsons AclaraONE Utility Portal – versions prior to 1.22
    • Schneider Electric EVLink WallBox – all versions
    • Schneider Electric Modicon Controllers M241 – versions prior to 5.3.12.51
    • Schneider Electric Modicon Controllers M251 – versions prior to 5.3.12.51
    • Schneider Electric Modicon Controllers M262 – versions prior to 5.3.9.18
    • Schneider Electric Modicon Controllers M258 – all versions
    • Schneider Electric Modicon Controllers LMC058 – all versions
    • TrendMakers Sight Bulb Pro Firmware ZJ_CG32-2201 – version 8.57.83 and prior

    The Cyber Centre encourages users and administrators to review the provided web link, perform the suggested mitigations and apply the necessary updates if available.

  • MongoDB security advisory (AV25-380)
    01 July 2025

    Serial number:AV25-380
    Date:June 27, 2025

    On June 26, 2025, MongoDB published a security advisory to address a vulnerability in the following products:

    • MongoDB Server v6.0 – versions prior to 6.0.21
    • MongoDB Server v7.0 – versions prior to 7.0.17
    • MongoDB Server v8.0 – versions prior to 8.0.5

    The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

  • VMware security advisory (AV25-379)
    01 July 2025

    Serial number:AV25-379
    Date:June 27, 2025

    On June 26, 2025, VMware published a security advisory to address a vulnerability in the following product:

    • RabbitMQ – version 3.13.7 and prior

    The Cyber Centre encourages users and administrators to review the provided web links and perform the suggested mitigations.

  • Microsoft Edge security advisory (AV25-378)
    01 July 2025

    Serial number:AV25-378
    Date:June 27, 2025

    On June 26, 2025, Microsoft published a security update to address vulnerabilities in the following product:

    • Microsoft Edge Stable Channel – versions prior to 138.0.3351.55

    The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary update.

  • Vulnerabilities impacting Citrix NetScaler ADC and NetScaler Gateway - CVE-2025-5349, CVE-2025-5777 and CVE-2025-6543
    01 July 2025

    Number: AL25-008
    Date: June 26, 2025

    Audience

    This Alert is intended for IT professionals and managers of notified organizations.

    Purpose

    An Alert is used to raise awareness of a recently identified cyber threat that may impact cyber information assets, and to provide additional detection and mitigation advice to recipients. The Canadian Centre for Cyber Security ("Cyber Centre") is also available to provide additional assistance regarding the content of this Alert to recipients as requested.

    Details

    On June 17 and 25, 2025, Citrix published security advisories for critical vulnerabilities, CVE-2025-5349, CVE-2025-5777 and CVE-2025-6543, affecting the following productsFootnote1Footnote2:

    • NetScaler ADC 12.1-FIPS – versions prior to 12.1-55.328-FIPS
    • NetScaler ADC and NetScaler Gateway 14.1 – versions prior to 14.1-47.46
    • NetScaler ADC and NetScaler Gateway 13.1 – versions prior to 13.1-59.19
    • NetScaler ADC 13.1-FIPS and NDcPP – versions prior to 13.1-37.236-FIPS and NDcPP

    NetScaler ADC and NetScaler Gateway versions 12.1 and 13.0 are now End-Of-Life (EOL) and are no longer supported.

    For CVE-2025-5777 and CVE-2025-6543: NetScaler must be configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server for these vulnerabilities to be exploited.

    For CVE-2025-5349: An improper access control configured on NetScaler management interface would lead to an access to NSIP, to Cluster Management IP and to local GSLB Site IP.

    Citrix reports that exploitation of CVE-2025-6543 against unmitigated appliances has been observed. In response to these vulnerabilities, the Cyber Centre released AV25-350 on June 17Footnote3 and AV25-374 on June 25, 2025Footnote4.

    The Cyber Centre is aware of online interest and speculation about these vulnerabilities and is publishing this Alert out of an abundance of caution.

    Suggested actions

    The Cyber Centre strongly recommends that organizations using Citrix NetScaler ADC and NetScaler Gateway appliances review the Citrix security bulletinsFootnote1Footnote2 and update or upgrade the affected systems to the following versions:

    • NetScaler ADC and NetScaler Gateway 14.1-47.46 and later.
    • NetScaler ADC and NetScaler Gateway 13.1-59.19 and later releases of 13.1.
    • NetScaler ADC 13.1-FIPS and 13.1-NDcPP 13.1-37.236 and later releases of 13.1-FIPS and 13.1-NDcPP.

    In addition, the Cyber Centre strongly recommends that organizations review and implement the Cyber Centre’s Top 10 IT Security ActionsFootnote5.

    If activity matching the content of this alert is discovered, recipients are encouraged to report via the My Cyber Portal, or email contact@cyber.gc.ca.

    References

  • VMware security advisory (AV25-377)
    01 July 2025

    Serial number:AV25-377
    Date:June 26, 2025

    On June 25, 2025, VMware published security advisories to address vulnerabilities in the following product:

    • VMware Tanzu for Postgres – versions 17.4.0, 16.8.0, 15.12.0, 14.17.0, 13.20.0
    • VMware Tanzu for Postgres – versions 17.5.0, 16.9.0, 15.13.0, 14.18.0, 13.21.0

    The Cyber Centre encourages users and administrators to review the provided web links and perform the suggested mitigations.

  • Cisco security advisory (AV25-376)
    01 July 2025

    Serial number:AV25-376
    Date:June 25, 2025

    On June 25, 2025, Cisco published a security advisory to address vulnerabilities in the following products:

    • Cisco ISE and ISE-PIC – versions prior to 3.3
    • Cisco ISE and ISE-PIC – versions prior to 3.4

    The Cyber Centre encourages users and administrators to review the provided web links, perform the suggested mitigations and apply the necessary updates.

Editors Pick

Install a guest OS in Virtualbox

In this video we review the basic settings required to install a guest operating system in virtualbox.  You will need to have already downloaded and installed virtualbox as well as have downloaded an iso for the gust OS.

Trending

Connect Remotely to Ubuntu Server

In this video we review the necessary steps to set up an Ubuntu server for a remote ssh connection and how to connect to it remotely. We look at 2 different methods of connecting remotely.  WSL (Windows Sub System For Linux) and Putty.  From a Linux host you can just launch the terminal.


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