{"id":102,"date":"2015-12-16T12:42:58","date_gmt":"2015-12-16T12:42:58","guid":{"rendered":"https:\/\/www.24x7serversupport.com\/24x7serversupport-blog\/?p=102"},"modified":"2015-12-16T12:42:58","modified_gmt":"2015-12-16T12:42:58","slug":"install-clamav-on-centos-7","status":"publish","type":"post","link":"https:\/\/www.24x7serversupport.com\/blog\/install-clamav-on-centos-7\/","title":{"rendered":"Install Clamav on CentOS 7"},"content":{"rendered":"

Install EPEL repo first
\n<\/strong><\/p>\n

Clamav is available on EPEL repo. Please install <\/span>EPEL<\/a> <\/span>first then, run the following command:<\/p>\n

[code]yum install clamav-server clamav-data clamav-update clamav-filesystem clamav clamav-scanner-systemd clamav-devel clamav-lib clamav-server-systemd[\/code]<\/p>\n

Remove \u201cExample<\/em>\u201d line from <\/span>freshclam.conf<\/span> <\/span>and \/etc\/clamd.d\/scan.conf<\/span> <\/span>in default locatiof of <\/span>clamd.conf<\/span>!<\/p>\n

[code]sed -i -e \u201cs\/^Example\/#Example\/\u201d \/etc\/freshclam.conf<\/span>[\/code]<\/span><\/p>\n

[code]sed -i -e \u201cs\/^Example\/#Example\/\u201d \/etc\/clamd.d\/scan.conf<\/span>[\/code]<\/span><\/p><\/blockquote>\n

Run freshclam to update database manually.<\/p>\n

 <\/strong>[code]freshclam[\/code]<\/p><\/blockquote>\n

Fresclam is run by cron job from <\/span>\/etc\/cron.d\/clamav-update <\/em><\/p>\n

[code] cat \/etc\/cron.d\/clamav-update[\/code]
\n## Adjust this line\u2026
\nMAILTO=root<\/p>\n

## It is ok to execute it as root; freshclam drops privileges and becomes
\n## user \u2018clamupdate\u2019 as soon as possible
\n0  *\/3 * * * root \/usr\/share\/clamav\/freshclam-sleep<\/em><\/p>\n

# \/usr\/share\/clamav\/freshclam-sleep<\/strong>
\nWARNING: update of clamav database is disabled; please see
\n\u2018\/etc\/sysconfig\/freshclam\u2019
\nfor information how to enable the periodic update resp. how to turn
\noff this message.<\/p><\/blockquote>\n

It seems that freshclam update via cron is disabled. Remove the last line (REMOVE ME) from \/etc\/sysconfig\/freshclam file to active\u2026<\/p>\n

# tail \/etc\/sysconfig\/freshclam<\/strong>
\n## \u2018disabled-warn\u2019  \u2026  disables the automatic freshclam update and
\n##                         gives out a warning
\n## \u2018disabled\u2019       \u2026  disables the automatic freshclam silently
\n# FRESHCLAM_DELAY=<\/p>\n

### !!!!! REMOVE ME !!!!!!
\n### REMOVE ME: By default, the freshclam update is disabled to avoid
\n### REMOVE ME: network access without prior activation
\nFRESHCLAM_DELAY=disabled-warn    # REMOVE ME<\/strong><\/p><\/blockquote>\n

run clamd manually for testing purposes<\/p>\n

[code]\/usr\/sbin\/clamd -c \/etc\/clamd.d\/scan.conf<\/span> <\/span>\u2013nofork=yes[\/code]
\nERROR: Please define server type (local and\/or TCP)<\/p><\/blockquote>\n

If you get error like above, then we need to define server type. Use socket option.<\/p>\n

Comment out the following line in \/etc\/clamd.d\/scan.conf<\/span><\/p>\n

#LocalSocket \/var\/run\/clamd.scan\/clamd.sock<\/span><\/em><\/p><\/blockquote>\n

to<\/p>\n

LocalSocket \/var\/run\/clamd.scan\/clamd.sock<\/span><\/em><\/p><\/blockquote>\n

Enable on startup<\/p>\n

# systemctl  enable clamd@scan<\/strong>
\nln -s \u2018\/usr\/lib\/systemd\/system\/clamd@scan.service\u2019 \u2018\/etc\/systemd\/system\/multi-user.target.wants\/clamd@scan.service<\/span>\u2019<\/p><\/blockquote>\n

and start the service, check the status<\/p>\n

# systemctl  start clamd@scan<\/strong>
\n# systemctl  status clamd@scan<\/strong>
\n[code]<\/em><\/p>\n

clamd@scan.service \u2013 Generic clamav scanner daemon<\/em>
\n   Loaded: loaded (\/usr\/lib\/systemd\/system\/clamd@scan.service; enabled)<\/em>
\n   Active: active (running) since Mon 2015-01-05 14:45:08 EET; 3s ago<\/em>
\n Main PID: 13588 (clamd)<\/em>
\n   CGroup: \/system.slice\/system-clamd.slice\/clamd@scan.service<\/span><\/em>
\n           \u00e2\u0094\u0094\u00e2\u0094\u008013588 \/usr\/sbin\/clamd -c \/etc\/clamd.d\/scan.conf<\/span> <\/span>\u2013nofork=yes<\/em><\/p>\n

Jan 05 14:45:08 Centos7-min systemd[1]: Started Generic clamav scanner daemon.<\/em>
\nJan 05 14:45:08 Centos7-min clamd[13588]: clamd daemon 0.98.5 (OS: linux-gnu, ARCH: x86_64, CPU: x86_64)<\/em>
\nJan 05 14:45:08 Centos7-min clamd[13588]: Running as user clamscan (UID 995, GID 994)<\/em>
\nJan 05 14:45:08 Centos7-min clamd[13588]: Log file size limited to 1048576 bytes.<\/em>
\nJan 05 14:45:08 Centos7-min clamd[13588]: Reading databases from \/var\/lib\/clamav<\/em>
\nJan 05 14:45:08 Centos7-min clamd[13588]: Not loading PUA signatures.<\/em>
\nJan 05 14:45:08 Centos7-min clamd[13588]: Bytecode: Security mode set to \u201cTrustSigned\u201d.<\/em><\/p>\n

[\/code]<\/em><\/p><\/blockquote>\n

Run a test scan:<\/p>\n

# clamdscan -c \/etc\/clamd.d\/scan.conf<\/span> <\/span>\/etc\/hosts<\/strong>
\n\/etc\/hosts: OK<\/p><\/blockquote>\n

\u2014\u2014\u2014\u2013 SCAN SUMMARY \u2014\u2014\u2014\u2013
\nInfected files: 0
\nTime: 0.002 sec (0 m 0 s)<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Install EPEL repo first Clamav is available on EPEL repo. Please install EPEL first then, run the following command: [code]yum install clamav-server clamav-data clamav-update clamav-filesystem clamav clamav-scanner-systemd clamav-devel clamav-lib clamav-server-systemd[\/code] Remove \u201cExample\u201d line from freshclam.conf and \/etc\/clamd.d\/scan.conf in default locatiof of clamd.conf! [code]sed -i -e \u201cs\/^Example\/#Example\/\u201d \/etc\/freshclam.conf[\/code] [code]sed -i -e \u201cs\/^Example\/#Example\/\u201d \/etc\/clamd.d\/scan.conf[\/code] Run freshclam to update database manually.  [code]freshclam[\/code] Fresclam is […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[30],"tags":[31,32],"class_list":["post-102","post","type-post","status-publish","format-standard","hentry","category-centos","tag-centos","tag-cpanel"],"jetpack_publicize_connections":[],"yoast_head":"\nInstall Clamav on CentOS 7 \u2013 24x7serversupport-Blog<\/title>\n<meta name=\"description\" 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