Troubleshooting VCenter

pfSense Lab users? Cannot access pfSense in a Web Browser?

• Do you have the pfSense VM from vcenter.cci.drexel.edu open and running and configured, per the instructions given to you by your instructor?
• Try making sure you have both the pfSense VM and the Ubuntu or Trusty VM open and running in separate tabs in your web browser.
• And follow what the instructions say carefully about setting up pfSense.
• Some instructors have older instructions, or may have videos or instructions slightly out of order. Read ahead or look for videos from your instructor if confused.

Cannot Login to a VM, Especially a Trusty VM?

• LOOK CAREFULLY AT THE INSTRUCTIONS PROVIDED TO YOU BY YOUR INSTRUCTOR!
  They often provide an initial username and/or password to use.
  For example: CT 400 for Trusty VM's often use usernames of either "student" or "pfstudent".
  And use password of "P@$$w0rd". (But not always.)
• Do NOT include quotation marks OR periods in the username OR password.
• Be sure to change your password after your first successful login.
  Google how to change your password on what OS you are on (Linux, Windows, Ubuntu, etc).

Not Sure How to Power Off Your VM?

• See step 7 and 7a in the above "Instructions" section.

Installing VMRC for "Remote Console" option

• The VMWare Remote Console will give you an experience more like a local virtualization platform.
  
• And let you copy and paste into/out of the VM.
• See Installing VMRC Install for Remote Console Option in VMware vCenter.

Cannot get to pfSense at 192.168.1.1 in your Trusty Ubuntu VM (if part of your lab)?

• Make sure both pfSense VM & Trusty Ubuntu VM are running at the same time.
• You need to have the pfSense VM running first
  and to keep that VM up and running in one tab in your internet browser
  while you visit 192.168.1.1 in the Trusty Ubuntu VM in another tab in your web browser.
• Also, see the next section on no internet access in your Trusty Ubuntu VM.

Trouble Installing pfSense (if part of your lab)?

• Try these webpages:
  https://docs.netgate.com/pfsense/en/latest/install/install-pfsense.html
  or...
  https://doc.pfsense.org/index.php/Installing_pfSense

No Internet Access in Trusty Ubuntu VM?

• First, make sure the pfSense router VM is powered on as well,
  especially if you have already been using the pfSense router VM!
• Second, if you have a metasploitable counterpart VM,
  neither the metasploitable or other VM will have internet access by design.
• With above in mind, try the following...
• Click the WiFi icon in the upper right of your Trusty Ubuntu VM
  when you have that web browser tab open, after logging into vcenter.
• Make sure “Enable Networking” is checked.
  If it’s not, select “Enable Networking” to check it or enable it.
• If that doesn’t help,
  check the WiFi icon again in the upper right of your Trusty Ubuntu VM again, and select “Wired Connection 1.”
• And if that doesn’t help, make sure your computer (not either VM) is actually connected to the internet and that you can browse to some website you haven’t visited before, just to make sure your internet is working.
  
• If that doesn’t help, shut down the Trusty Ubuntu VM, and close the tab, close the tab (if open) for pfSense, logout of vcenter, close all web browser windows, wait 20 seconds, and then re-open your web browser and try again.
• If that doesn’t work, try Chrome instead of Firefox as your web browser for vcenter.cci.drexel.edu, or try Firefox instead of Chrome for vcenter.cci.drexel.edu.
• If that doesn’t help, connect by VPN if you haven’t already (usually a really good idea for this).
• If you login to the VPN, but the VPN keeps having a login error, you need to use your Drexel email or Office 365 Multi-Factor Authentication or MFA method to approve the connection on your cellphone, mobile device, or telephone.

My VM does not appear in the left navigation, after logging

• Be sure to click to expand the left navigation options.
  
  
                            
  

pfSense VM boot looping (rebooting over and over again)?

If you get into a boot loop with pfSense:

1. When you see the screen to boot to multi or single user,
   press the number for single user usually 2,
   but look for single user,
   and press the corresponding number.
   OR press the spacebar.
2. At the command line prompt,
   type in
   cd /sbin
   or
   cd sbin/
3. Then type in
   ls
   and check that "fsck" appears somewhere in the outputted list of files, folders, and applications.
4. Then type in:
   fsck -y /
   Let the above fsck command finish running. 
5. Then re-run 2 more times.
   Press the up keyboard arrow key,
   and Enter/Return keyboard key.
   Or re-type in the same fsck command as shown above.
   The fsck command does a little more file system checking/repair each time.
   Running it 3 times in total should do it.
6. Then type in reboot at the command line prompt. 
   pfSense should reboot once now.
7. Final Important Step:
   When you get to another list of options, do NOT choose "1 Reboot (ssh only)" or "0) Logout (SSH only).
   Do *NOT* press 0 or 1 either.
   Instead, press "6) Halt system" (pfsense).
   Then type y
   And then give pfSense in the VM some time to shut down.
   Disregard any "An unrecoverable IOException occurred so the connection was closed" errors.
   When pfSense is shut down, close your internet browser tab.
   When you re-open pfSense again (Actions > Power > Power On in vcenter.cci.drexel.edu web browser tab).
   and get it configured as mentioned in the early labs for your tutorial,
   You should not have to use the 6 or Halt command again.
   You should just be able to leave the pfSense VM running,
   and be able to close your web browser tab for the pfSense VM,
   unless you run into an issue again.
   

pfSense vcenter VM Student and sudo Password

• To access vcenter, you need to use your Drexel userid@drexel.edu with Drexel password, after connecting to the Drexel VPN (not via the Drexel vpn website either).
• But if you are on your Ubuntu VM and trying to access the pfSense VM via the Terminal Console window (Command Line Inferface or CLI) & using the sudo command to install a package like NMAP, or simply trying login to the pfSense VM with the default Student account, try the default password of P@$$w0rd
• If you changed the password from the default password, the password is going to be the same password you use to login to the Student account on the pfSense VM with.
  
• If you are still not sure, but still have access to the pfSense VM,
  you can try to guess it by installing a package via sudo, or try the sudo -l command as shown below.
  Your password will not appear as you type it.
  Make sure CAPS LOCK is off.
  If you still cannot guess your password,
  email ihelp@drexel.edu and let us know the course # and instructor and the assignment.
  
  

SEED password

dees

That's it.

kern.ipc.maxpipekva exceeded; see tuning (7)

The kernel's inter-process communication (IPC) settings. The maximum kernel virtual address space for pipes has been exceeded. They say see manual page 7 on "tuning"....

BUT...

INSTEAD...

Just do the fsck command as instructed in the next section: "/dev/sda1 contains a file system with errors"

SEED or other Ubuntu VM error: /dev/sda1 contains a file system with errors

If you see the error below (OR SIMILAR OR JUST HAVE AN PROMPT) when you try boot up or reboot or reset your SEED lab or other Ubuntu VM, especially for CT 382...

/dev/sda1 contains a file system with errors, check forced
Inodes that were part of a corrupted orphan linked list found.

/dev/sda1: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
（i.e.,, without -a or -p options）
fsck exited with status code 4
The root filesystem on /dev/sdal requires a manual fsck

BusyBox v1.22.1 (Ubuntu 1:1.22.0-15ubuntu1) built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs) 

Then type in the command below . Type this command below RIGHT AFTER the (initramfs) prompt or other command prompt. Press the Enter/Return key on your keyboard to enter/run the command, of course.

fsck -y /dev/sda1

NOTE: If the error mentions /dev/sda5 or /dev/sda2 or /dev/dsa3, etc, then you use that for the /deve/sda# portion in the above command instead of /dev/sda1. So if it says in the error message /dev/sda5, then the command is instead: fsck -y /dev/sda5

Like so...

Let the command finish running until you see the (initramfs) prompt on its own line again.

Close the web browser tab with the VM in it.

Go to the web browser tab for vcenter.cci.drexel.edu , click ACTIONS > Power Down. 

Do the same for any pfSense or other VM's you have running. If pfSense is boot looping, see our other section on that.

Restart pfSense first, but restart all the VM's as follows:

Wait 10 seconds. Click ACTIONS > Power On. Click the little window showing your VM. In the new web browser tab, click Ubuntu (or let pfSense start back up) and press Enter/Return. Wait up to 30 seconds. Your VM should boot up normally now.

"Invalid Mac OS Version"

See next section on Remote Console Not Working.

Remote Console Not Working -- Try Web Console

• Make sure you are going to the https://vcenter.cci.drexel.edu website & that you are logging in while on VPN (the app, not the website).
• Also, Web Console is another option instead of Remote Console. See picture below.
• If you can use Web Console instead of Remote Console, and you might want to try, even if your lab or assignment instructions say otherwise, we recommend trying that.
• Especially as what we suggest below to fix the issue with Remote Console may not work, and you may be up against a deadline before we can assist you further.
• Still use the VPN.
• And note that some labs will still require you connect to another vm first, (for example, the pfSense VM), and let it fully boot before using the vm you need to use.

Remote Console Not Working on Mac -- Various Ways to Uninstall then Reinstall Remote Console

If you need to use Remote Console, I'd actually try uninstalling and reinstalling the VMware Remote Console app on your Mac.

Here's how to do so:

1. Start with the simple uninstall methods shown on this video:
   https://www.youtube.com/watch?v=pcXgAbiSjpw
2. Then try to install the app again from here:
   https://apps.apple.com/us/app/vmware-remote-console/id1230249825?mt=12
3. Then follow the instructions here:
   https://support.cci.drexel.edu/cci-virtual-lab-resources/vmware-vcenter-or-vsphere/installing-vmrc-install-remote-console-option-vmware-vcenter/
4. Reboot and try to access your vm1 lab in vcenter.cci.drexel.edu again.
5. If that fails, try the method at the following YouTube to uninstall. I use this app in this YouTube all the time. Check all the boxes and delete what it finds. AND THEN, repeat steps #2-4 again above.
   Here's the YouTube for this step #5:
   https://www.youtube.com/watch?v=jKxq25PhvVc
6. If all of that fails, try the method at this other YouTube video to install. It's more manual. AND THEN repeat steps #2-4 above.
   Here's the YouTube video for this step #6:
   https://www.youtube.com/watch?v=IgRi0Z1O_gk
7. If all of that fails still, send us screenshots of your entire display & what version of Mac OS you are running & what browser you are using.

8. If something above resolves your issue, or you find another solution, let us know that too.

Troubleshooting Note for CCI Commons Student Assistants

CCI Commons Student Assistants and CO-OP:
ONLY power off, shutdown, reset, or reboot a VM in VMware vcenter
that has a Drexel userid in the name.

Examples:

• CT210-mjg88-Ubuntu
• CT400-bjb344-KaliLinux
• CT212-jpm46-Trusty
• CT212-jpm46-pfsense

In general, only full-time tech staff should EVER power off, shutdown, reset, or reboot anything in vmware vcenter that does NOT have a Drexel userid in the name of the VM.

ELMS Emails if Someone Needs to Download and Install Vmware to their Computer.

This is NOT what the majority of CCI students.

Downloading VMWare (ELMS tickets)

If we get a ticket for ELMS where they want to download a copy of VMWare, assign the ticket ot John McNamara, and email John McNamara.

But mention that there are free versions of VMWare now.

• VMware Fusion Player – Personal Use License < Mac users
• Download VMware Workstation Player | VMware < Windows & Linux users

THESE ARE NOT WHAT YOU WOULD USE FOR CCI CLASSES ANYMORE!! Go to https://vcenter.cci.drexel.edu and see the other instructions above instead. We also are not supporting recreational personal use of VMWare.