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Add option to have ClamAV clamd use less memory on startup #64

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Mar 11, 2024
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Add option to have ClamAV clamd use less memory on startup #64

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9 changes: 7 additions & 2 deletions README.md
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Expand Up @@ -43,7 +43,7 @@ Thank you very much.

- [mailserver2/mailserver](#mailserver2mailserver)
- [Fork](#fork)
- [Chat & questions](#chat--questions)
- [Chat \& questions](#chat--questions)
- [Build](#build)
- [Docker image](#docker-image)
- [Summary](#summary)
Expand Down Expand Up @@ -86,6 +86,7 @@ Thank you very much.
- [IPv6 support](#ipv6-support)
- [Persistent files and folders in /mnt/docker/mail Docker volume](#persistent-files-and-folders-in-mntdockermail-docker-volume)
- [Override postfix configuration](#override-postfix-configuration)
- [Whitelist Hosts/IP Addresses In Postfix](#whitelist-hostsip-addresses-in-postfix)
- [Custom configuration for Dovecot](#custom-configuration-for-dovecot)
- [Postfix blacklist](#postfix-blacklist)
- [Email client settings](#email-client-settings)
Expand Down Expand Up @@ -114,6 +115,9 @@ Please check, if your system meets the following minimum requirements:
| CPU | 1 GHz | 1 GHz |
| RAM | 512 MiB | 1 GiB |

**NOTE**: If you are having problems with clamd using too much memory on startup, set `CLAMD_MEMORY_FIX` to `true`.
See [the ClamAV documentation](https://docs.clamav.net/manual/Installing/Docker.html#what-can-i-do-to-minimize-ram-usage) for details.

<p align="right"><a href="#summary">Back to table of contents :arrow_up_small:</a></p>

### Prerequisites
Expand Down Expand Up @@ -331,6 +335,7 @@ If you use Ansible, I recommend you to go to see [@ksylvan](https://github.com/k
| **WHITELIST_SPAM_ADDRESSES** | List of whitelisted email addresses separated by commas | *optional* | null |
| **DISABLE_RSPAMD_MODULE** | List of disabled modules separated by commas | *optional* | null |
| **DISABLE_CLAMAV** | Disable virus scanning | *optional* | false |
| **CLAMD_MEMORY_FIX** | Will add `ConcurrentDatabaseReload no` in clamd.conf | *optional* | false |
| **DISABLE_SIEVE** | Disable ManageSieve protocol | *optional* | false |
| **DISABLE_SIGNING** | Disable DKIM/ARC signing | *optional* | false |
| **DISABLE_GREYLISTING** | Disable greylisting policy | *optional* | false |
Expand Down Expand Up @@ -1123,7 +1128,7 @@ NOQUEUE: reject: 554 5.7.1 <[email protected]>: Sender address rejected: Acces
- Dovecot 2.2.27
- Rspamd 1.9.4
- Fetchmail 6.3.26
- ClamAV 0.100.3
- ClamAV 1.0.3
- Clamav Unofficial Sigs 5.6.2
- Zeyple 1.2.2
- Unbound 1.6.0
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4 changes: 4 additions & 0 deletions rootfs/usr/local/bin/setup.sh
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Expand Up @@ -733,6 +733,10 @@ sed -i -e 's/^Foreground .*$/Foreground true/g' \
-e 's/^LogFacility .*$/LogFacility LOG_MAIL/g' \
/etc/clamav/clamd.conf

if [ "$CLAMD_MEMORY_FIX" = true ]; then
echo "ConcurrentDatabaseReload no" >> /etc/clamav/clamd.conf
fi

# FRESHCLAM
# ---------------------------------------------------------------------------------------------

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