Whitelist our current public IP
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1 changed files with 28 additions and 11 deletions
39
README.md
39
README.md
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@ -88,7 +88,7 @@ Whitelist Tailscale IPs:
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cat << EOF > /etc/crowdsec/parsers/s02-enrich/01-base23-tailscale.yaml \
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&& systemctl restart crowdsec; journalctl -xef -u crowdsec.service
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name: base23/tailscale ## Must be unqiue
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description: "Whitelist Tailscale"
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description: "Whitelist events from Tailscale Subnet"
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whitelist:
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reason: "Tailscale clients"
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cidr:
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@ -96,6 +96,21 @@ whitelist:
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EOF
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```
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Whitelist our current Public IPs:
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```shell
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mkdir -p /etc/crowdsec/postoverflows/s01-whitelist/ \
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&& cat << EOF > /etc/crowdsec/postoverflows/s01-whitelist/01-base23-public-ips.yaml \
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&& crowdsec -t && systemctl restart crowdsec; systemctl status crowdsec.service
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name: base23/public-ips ## Must be unqiue
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description: "Whitelist events from base23 public IPs"
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whitelist:
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reason: "Base23 Public IPs"
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expression:
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- evt.Overflow.Alert.Source.IP in LookupHost("asterix.ddns.base23.de")
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EOF
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```
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Add Authentik integration:
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```shell
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@ -141,16 +156,18 @@ cd /root/apps \
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4. Use the generated SSH key and copy it to the Hetzner Storage box for backups:
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```shell
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STORAGE_BOX_DOMAIN=cloud.backup.base23.de \
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STORAGE_BOX_IPV4=$(dig +short "${STORAGE_BOX_DOMAIN}" A | grep -E '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$') \
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STORAGE_BOX_IPV6=$(dig +short "${STORAGE_BOX_DOMAIN}" AAAA | grep -E '^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$') \
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&& cat ./data/restic/ssh/id_ed25519.pub | ssh -p23 u291924-sub4@${STORAGE_BOX_DOMAIN} install-ssh-key \
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&& ssh-keyscan -p 23 -t ecdsa-sha2-nistp521,ed25519,ed25519-sk,rsa,dsa,ecdsa,ecdsa-sk ${STORAGE_BOX_DOMAIN} > ./data/restic/ssh/known_hosts \
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&& ssh-keyscan -p 23 -t ecdsa-sha2-nistp521,ed25519,ed25519-sk,rsa,dsa,ecdsa,ecdsa-sk ${STORAGE_BOX_IPV4} >> ./data/restic/ssh/known_hosts \
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&& ssh-keyscan -p 23 -t ecdsa-sha2-nistp521,ed25519,ed25519-sk,rsa,dsa,ecdsa,ecdsa-sk ${STORAGE_BOX_IPV6} >> ./data/restic/ssh/known_hosts \
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&& ssh-keyscan -p 22 -t ecdsa-sha2-nistp521,ed25519,ed25519-sk,rsa,dsa,ecdsa,ecdsa-sk ${STORAGE_BOX_DOMAIN} >> ./data/restic/ssh/known_hosts \
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&& ssh-keyscan -p 22 -t ecdsa-sha2-nistp521,ed25519,ed25519-sk,rsa,dsa,ecdsa,ecdsa-sk ${STORAGE_BOX_IPV4} >> ./data/restic/ssh/known_hosts \
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&& ssh-keyscan -p 22 -t ecdsa-sha2-nistp521,ed25519,ed25519-sk,rsa,dsa,ecdsa,ecdsa-sk ${STORAGE_BOX_IPV6} >> ./data/restic/ssh/known_hosts
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TARGET_DOMAIN=cloud.backup.base23.de \
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TARGET_KEY_TYPES="ecdsa-sha2-nistp521,ed25519,ed25519-sk,rsa,dsa,ecdsa,ecdsa-sk" \
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TARGET_IPV4=$(dig +short "${TARGET_DOMAIN}" A | grep -E '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$') \
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TARGET_IPV6=$(dig +short "${TARGET_DOMAIN}" AAAA | grep -E '^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$') \
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&& cat ./data/restic/ssh/id_ed25519.pub | ssh -p23 u291924-sub4@${TARGET_DOMAIN} install-ssh-key \
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&& ssh-keyscan -p 23 -t ${TARGET_KEY_TYPES} ${TARGET_DOMAIN} > ./data/restic/ssh/known_hosts \
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&& ssh-keyscan -p 23 -t ${TARGET_KEY_TYPES} ${TARGET_IPV4} >> ./data/restic/ssh/known_hosts \
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&& ssh-keyscan -p 23 -t ${TARGET_KEY_TYPES} ${TARGET_IPV6} >> ./data/restic/ssh/known_hosts \
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&& ssh-keyscan -p 22 -t ${TARGET_KEY_TYPES} ${TARGET_DOMAIN} >> ./data/restic/ssh/known_hosts \
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&& ssh-keyscan -p 22 -t ${TARGET_KEY_TYPES} ${TARGET_IPV4} >> ./data/restic/ssh/known_hosts \
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&& ssh-keyscan -p 22 -t ${TARGET_KEY_TYPES} ${TARGET_IPV6} >> ./data/restic/ssh/known_hosts
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```
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### Fist run
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