About Installation


I have one KVM server. Specifications: “1CPU - 4GB Ram - 50 NVMe” Ubuntu 23.04 installed. ( I can re-install 22 or debian 11)

I am looking at Install | Hestia Control Panel. and I want to install all of them actually. ClamAV, Spamassassin etc…

Do you think the server can withstand this load? I read somewhere that ClamAV alone consumes 2GB of RAM. I only have 1 site. That’s not important either. So I want to install all the features that HestiaCP offers.

Also, in the automatic installation, does the system install according to the server features? For example; My server has 4GB RAM. Does ClamAV install automatically? Or in other words, does HestiaCP make the most ideal installation according to the features?

Finally; What do you think is the ideal installation for my server from Install | Hestia Control Panel? Using maximum features…

Thanks in advance.

Hello @HMLocalhost,

The first thing you should do is… remove Ubuntu 23.04 and if you want Ubuntu, install the latest LTS version 22.04. HestiaCP only supports these operating systems:

Debian 10, 11 or 12
Ubuntu 20.04 or 22.04

If you mean whether the server can start all the services you want to install… yes, if you mean it could support all the load of your server… it depends on the traffic of your site.

Yes, Clamav consumes a lot of ram, in my system 1,7 GB right now with no load (I’m pretty sure I will disable Clamav soon).

Instead of install “everything”, I would think, what are my needs? And then, install the things I need.

Yes and no, installer won’t install Clamav if you have less than 3GB RAM but won’t install it if you don’t say the installer to do so.

There isn’t an ideal installation, the ideal for me, maybe isn’t ideal for you and vice versa. The ideal installation is to choose only the services you will need to run your site, no more, no less… and HestiaCP won’t do it for you :wink:


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First of all, thank you for your excellent explanation.

I can update the operating system to 22.04 or Debian 12. The server company installed 23.04 automatically. I apologize for my oversight.

I actually tested my system on a couple of different servers. 1CPU, 1GB RAM, 20GB Disk was fine without ClamAV and Spamassassin. Now I have 4GB RAM and I’m torn between installing ClamAV and Spamassassin or not. I wanted to ask you guys about this.

4GB is enough for me even if they use 3GB of RAM. Of course, some of you might say "why are you tiring your server so much?

I think I should go to sleep now. I have ridiculous obsessions. :slight_smile:

Thank you.

If you plan to use it as a mail server I would install Spamassassin (and Sieve for Dovecot) but not Clamav. I’ve been using HestiaCP for only 2 weeks but I’ve been using Clamav for more that 12 years and the only virus it catched were the EICAR virus tests I sent to my own mail server to test it.

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I agree that Spamassassin is just about essential for adding email to your VPS. I would also agree that if you can afford 8GB of RAM or more, that installing ClamAV should not hurt that much. However, at 4 GB of RAM, I can not understand why you would want to install ClamAV even if you only have one website. As noted above, ClamAV offers almost no benefit. I would recommend not using ClamAV if you only have 4GB of RAM.


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