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  1. [SOLVED] Re: Ubuntu Server using Winbind authentication instead of SSSD

    Seems like having a method to monitor changes to key files in /etc would be a good thing to have running...maybe not only detect write changes but also to email a report of what changed.

    I can...
  2. Re: HA cluster - hearbeat vs pacemaker vs corosync, what combo is official?

    I cannot answer that question because I'm just a person that uses the various operating systems to accomplish what is needed (and many times I no say in what platform was used).

    But if that system...
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    Re: System Restore

    Well, you mentioned snapshots at the OS level. I talked about snapshots at a hypervisor level above the OS and then the Op started asking direct questions about virtualization. :)
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    Re: System Restore

    I have not.

    My first deployment of a virtual system was using ESXi many years ago and it is still running to this day...although on its last legs since our company has been moving away from...
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    Re: System Restore

    There is a lot of documentation out there to be found but I never found a "single source of truth" because there isn't one. The hardware used by each person will be different and will change how the...
  6. Re: HA cluster - hearbeat vs pacemaker vs corosync, what combo is official?

    You can achieve HA in a variety of ways with various levels of HA.

    Take for example a database-driven web server. You could have the database and website on a single server and have a 2nd one...
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    Re: System Restore

    And if you run inside a virtual environment, you can create VM-level snapshots...which are oh-so-handy at quickly making a snapshot (or more) and the rollback to a particular snapshot. Extremely...
  8. Re: Ubuntu 20.04 LTS install Apache2 2.4.51

    I am also running Ubuntu web servers on Long-Term Support.
    The current version is 20.04.3 LTS running kernel 5.4.0-88 and Apache 2.4.41

    This "is" the latest and most-current version for the...
  9. [SOLVED] Re: 2 swapfiles in /opt, but only one list in fstab?

    Not convinced a swap file is that much worse than a partition. Swap files should be fine. The goal is not to utilize the swap file...only have it as an emergency overflow. If you are constantly...
  10. [SOLVED] Re: 2 swapfiles in /opt, but only one list in fstab?

    You (or the person setting up your server) was following my tutorial with their own customizations. If you re-read the "Swap File Management" section, it shows how to add and remove swap files...
  11. Re: [ubuntu server 20.04] stop sending crontab mail for all users

    You might want to take one specific email and explain exactly how it is being sent. What you described in general does not make any sense to me. Is the server configured to run individual cronjobs...
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    Re: Backup server 20.04

    Most-definitely yes. My backup approach is very similar to MAFoElffen. I create monthly snapshots of my partitions as well as more frequent full/differential backups of the data.

    I use LVM...
  13. [SOLVED] Re: LetsEncrypt - SSL certificate is not valid

    Re-install of binaries won't fix any configuration issues.

    MAKE SURE YOU HAVE A BACKUP

    I would purge everything off the server related to certbot (especially its config files) and then install...
  14. [SOLVED] Re: LetsEncrypt - SSL certificate is not valid

    Your installation of certbot is not how I have mine installed so I don't know the differences.

    This is how I installed it on my servers:


    sudo apt install certbot python3-certbot-apache
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    [ubuntu] Re: Cannot remove items from full disk

    I have not ever used the "reduce" commands so I have no experience to share other than google searching which I'm sure you could do as well.

    I have not removed an LV before either but know its...
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    [ubuntu] Re: Cannot remove items from full disk

    Hold up there boss. Your total size for the VAR volume is 4 GB (as shown by lvs). The size of your /var file system is 2 GB (as shown by the df). That means you have 2 GB of room right?

    Do this...
  17. [SOLVED] Re: LetsEncrypt - SSL certificate is not valid

    ls -l /var/lib/letsencrypt/

    My results:

    drwxr-xr-x 2 root root 4096 Oct 5 2020 backups
    drwxr-xr-x 2 root root 4096 Mar 31 18:22 http_challenges
    When doing a cert request on my system, the...
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    [ubuntu] Re: Cannot remove items from full disk

    Priority #1 is to determine how much free space is in your VAR LV and in your LVG volume group.

    If you have free space in VAR, you can simply expand your /var file system depending on how much...
  19. [SOLVED] Re: LetsEncrypt - SSL certificate is not valid

    I do not see the [installed] text at the end. How did you install certbot? Compiled from source?

    Try these commands:

    certbot --version
    certbot 0.40.0


    which certbot
    /usr/bin/certbot
  20. [SOLVED] Re: LetsEncrypt - SSL certificate is not valid

    I have upgraded all my servers to 20.04 long ago. I'm not experiencing that issue so I'm not sure what can be done to bandaid the issue if it really is an issue with certbot becoming out-of-date on...
  21. [SOLVED] Re: LetsEncrypt - SSL certificate is not valid

    Did you add a proxy since the last time the certificate was validated?
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    [ubuntu] Re: Cannot remove items from full disk

    This is true. Removing kernels (even manually) will only affect /boot and /usr/src so your focus should not be on kernel removal (although you should only have just a couple in there by...
  23. Re: Content filtering for just one machine on a network

    Or have all go thru the proxy and have different rules on the proxy based on MAC address?

    Just a guess. I do not use proxy's for that.

    LHammonds
  24. Re: cannot resolve Unknown host (when I add the domain to the hostname)

    If you want machines other than the server to recognize it, you will need to look at your local DNS server. For home environments, this is usually the Internet router which typically serves as the...
  25. [server] Re: 20.04: 'apt-get upgrade' added a huge load of packages and threads

    In the 1st post, it was said "obviously headless" which indicates this person either forgot they installed desktop, or installed something else that installed desktop or someone else installed...
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