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Changes to SSH host keys

In an attempt to modernize our SSH infrastructure, we’ve made some changes to SSH keys on our Linux computers. We’ve disabled DSA host keys, and enabled new ECDSA and ED25519 host keys. This process took a few days, and during that time a few hosts had their keys changed. If you are experiencing problems trying [...]

2021-07-27T18:34:15-08:00July 27th, 2021|

Keep your guard up against Ransomware Attacks

As seen in recent headlines, institutionally targeted ransomware attacks are on the rise. The initial entry for these attackers seem to use many of the same techniques that we have seen in the past so it is becoming very important, as frequent computer users, to keep our guard up. This is particularly important for faculty, [...]

2021-06-07T18:53:30-08:00June 7th, 2021|

myfiles.pdx.edu has been decomissioned

OIT has decommissioned myfiles.pdx.edu, the web-based access mechanism to their file server resources. If you are trying to access the file server resources tied to your campus-wide Odin account, you will need to connect to the VPN and use operating system dependent file access methods. From Windows: https://portlandstate.atlassian.net/servicedesk/customer/portal/2/article/44717005 From Mac: https://portlandstate.atlassian.net/servicedesk/customer/portal/2/article/44716965 Another option to access [...]

2021-01-21T23:28:07-08:00January 21st, 2021|

New round of Phishing Spam aimed at web site content

Recently, web site maintainers in MCECS have been receiving phishing emails disguised as complaints about the misuse of copyrighted images on their sites. The emails are often submitted through a contact form or to published contact email addresses. They often have a title that looks like: You have no legal rights to use my images [...]

2020-12-17T01:13:40-08:00December 17th, 2020|

OpenVPN change – Disabling IPv6 routing

If you actively make use of IPv6 routing over the MCECS OpenVPN, this may affect you. Otherwise, please ignore. On Thursday, November 12, 2020, our OpenVPN servers will stop setting IPv6 addresses and advertising IPv6 routes. We are making this change due to issues some users have experienced with unusual IPv6 conditions on their home [...]

2020-11-09T13:40:45-08:00November 9th, 2020|

What’s new and other info for MCECS computer users – Fall 2020

Greetings from the Computer Action Team! Fall 2020 is going to be a remotely-accessed experience for most MCECS users. Whether you’re a student, faculty, or staff, you can learn more about your MCECS account by following this link: https://cat.pdx.edu/users/getting-help/ We have built a resource that catalogs many of the most commonly asked questions we encountered [...]

2020-10-01T13:39:34-08:00October 1st, 2020|

VPN issues after Tunnelblick 3.8.3 update

The recent Tunnelblick update to version 3.8.3 has left Mac users unable to connect to our VPN servers due to a deprecated setting in older versions of the CAT’s configuration files. A symptom of this problem is seeing the Tunnelblick connection notification window stuck in a loop with yellow text, like in the image below: [...]

2020-07-31T17:07:51-08:00July 27th, 2020|

File Sharing through RDP from MacOS

File Sharing through RDP from MacOS Step 1: Launch the Microsoft Remote Desktop application and fill out the computer and username fields, following our guide here if you would like instructions: https://cat.pdx.edu/platforms/mac/remote-access/using-rdp-to-connect-to-a-windows-computer-from-macos/ Step 2: Click on the "folders" tab, and then click the "Redirect folders" check box. Step 3: Click the plus [...]

2020-06-11T08:44:25-08:00June 11th, 2020|

Using RDP to Connect to a Windows Computer from MacOS

Using RDP to Connect to a Windows Computer from MacOS Due to the unique circumstances at the college due to COVID-19, we have opened up computer labs that are normally available in-person for remote access. The terminal server (ts.cecs.pdx.edu) is not capable of handling the increased remote access demands of this situation, so [...]

2020-09-15T16:18:18-08:00April 27th, 2020|

Using SSH From MacOS

Connecting to a remote Linux machine using SSH from MacOS SSH typically enables a user to securely connect to and run a shell (command line interpreter) on a remote Linux/UNIX computer. Since MacOS is really a UNIX-based operating system, we run a Terminal application which provides us with a local shell, and then [...]

2020-03-22T21:27:02-08:00March 22nd, 2020|
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