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#3983 switch on vm.overcommit_memory & higher fs.inotify.max_user_instances (#4041)

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/rootzoll 2023-08-01 00:14:46 +02:00 • committed by GitHub
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commit fe0e1e518e
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1 changed files with 8 additions and 2 deletions
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build_sdcard.sh
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@ -677,8 +677,14 @@ bash -c "echo '# End of file' >> /etc/security/limits.conf"
sed --in-place -i "23s/.*/session required pam_limits.so/" /etc/pam.d/common-session
sed --in-place -i "25s/.*/session required pam_limits.so/" /etc/pam.d/common-session-noninteractive
bash -c "echo '# end of pam-auth-update config' >> /etc/pam.d/common-session-noninteractive"
# increase the possible number of running processes from 128
bash -c "echo 'fs.inotify.max_user_instances=4096' >> /etc/sysctl.conf"
# Increase maximum number of inotify instances
bash -c "echo '# RaspiBlitz Edit: Set maximum number of inotify instances (8192 recommended for min 2GB RAM)' >> /etc/sysctl.conf"
bash -c "echo 'fs.inotify.max_user_instances=8192' >> /etc/sysctl.conf"
# Activate overcommit_memory
bash -c "echo '# RaspiBlitz Edit: Use overcommit to prevent system crashes' >> /etc/sysctl.conf"
bash -c "echo 'vm.overcommit_memory=1' >> /etc/sysctl.conf"
# *** fail2ban ***
# based on https://raspibolt.org/security.html#fail2ban