Scipt to create hostslist to block all subdomains of a domain over the hosts file

create_hostslist.sh

#!/bin/bash

LISTOFDOMAINS="officeapps.live.com
officeclient.microsoft.com"

HOSTSFILE="hosts.list"

rm -f "${HOSTSFILE}"
cat <<EOL > "${HOSTSFILE}"
# This is autogenerated by a script
# This list may contain incorrect entries and can destroy the entire local DNS Resolution

EOL

for LISTOFDOMAIN in ${LISTOFDOMAINS}; do
    echo "# This list contain most subdomains of ${LISTOFDOMAIN}" >> "${HOSTSFILE}"

    OUTPUTS=$(curl -s "https://crt.sh/?q=%25.${LISTOFDOMAIN}&output=json" \
        | jq -r '.[].common_name' \
        | grep -v '^\*\.' \
        | sort -u \
        | grep "${LISTOFDOMAIN}")

    for OUTPUT in ${OUTPUTS}; do
        echo "0.0.0.0 ${OUTPUT}" >> "${HOSTSFILE}"
    done

    echo "" >> "${HOSTSFILE}"
done

hosts.list.example

# This is autogenerated by a script
# This list may contain incorrect entries and can destroy the entire local DNS Resolution

# This list contain most subdomains of officeapps.live.com
0.0.0.0 aad-application-cert-000.oloobe.officeapps.live.com
0.0.0.0 aad.imagetodoc.edog.officeapps.live.com
0.0.0.0 aad.imagetodoc.officeapps.live.com
0.0.0.0 advancedformulaenvironment.officeapps.live.com
0.0.0.0 advancedformulaenvironment-preview.officeapps.live.com
0.0.0.0 appsforoffice.edog.officeapps.live.com
0.0.0.0 appsforoffice.officeapps.live.com
0.0.0.0 beta.officeapps.live.com
0.0.0.0 c2rsetup.edog.officeapps.live.com
0.0.0.0 c2rsetup.officeapps.live.com
0.0.0.0 callbacktokencert.imagetodoc.edog.officeapps.live.com
0.0.0.0 callbacktokencert.imagetodoc.officeapps.live.com
0.0.0.0 captions.edog.officeapps.live.com
0.0.0.0 captions.officeapps.live.com
0.0.0.0 cdn.ocws.officeapps.live.com
0.0.0.0 cdn.odc.officeapps.live.com
0.0.0.0 cdn.uci.officeapps.live.com
0.0.0.0 clientauthentication.retailer.officeapps.live.com
0.0.0.0 client.roaming.officeapps.live.com
0.0.0.0 config.edog.officeapps.live.com
0.0.0.0 config.officeapps.live.com
0.0.0.0 dd.edog.officeapps.live.com
0.0.0.0 designerapp.edog.officeapps.live.com
0.0.0.0 designerapp.officeapps.live.com
0.0.0.0 dots.officeapps.live.com
0.0.0.0 drs.officeapps.live.com
0.0.0.0 drs.sdf.officeapps.live.com
0.0.0.0 edognew.officeapps.live.com
0.0.0.0 edog.officeapps.live.com
0.0.0.0 eus2-000.excelsgs.edog.officeapps.live.com
0.0.0.0 excelca.edog.officeapps.live.com
0.0.0.0 excelca.officeapps.live.com
0.0.0.0 excelcs.edog.officeapps.live.com
0.0.0.0 excelcs.officeapps.live.com
0.0.0.0 excelps.edog.officeapps.live.com
0.0.0.0 excelps.officeapps.live.com
0.0.0.0 excelsgs.edog.officeapps.live.com
0.0.0.0 excelsgs.officeapps.live.com
0.0.0.0 ff3-collabrtcsc.officeapps.live.com
0.0.0.0 ff4-collabrtcsc.officeapps.live.com
0.0.0.0 ffc-visio.officeapps.live.com
0.0.0.0 firstpartyaadencrypt.oloobe.officeapps.live.com
0.0.0.0 firstpartyaadencryptsecondary.oloobe.officeapps.live.com
0.0.0.0 firstpartyaad.oloobe.officeapps.live.com
0.0.0.0 fs.officeapps.live.com
0.0.0.0 getitemsworker.edog.officeapps.live.com
0.0.0.0 getitemsworker.officeapps.live.com
0.0.0.0 group.ols.officeapps.live.com
0.0.0.0 hubble-aad-prod.officeapps.live.com
0.0.0.0 hubble.edog.officeapps.live.com
0.0.0.0 hubble-msas2s.officeapps.live.com
0.0.0.0 hubble.officeapps.live.com
0.0.0.0 imagetodoc.edog.officeapps.live.com
0.0.0.0 imagetodoc.officeapps.live.com
0.0.0.0 imganalysissvc.edog.officeapps.live.com
0.0.0.0 imganalysissvc.officeapps.live.com
0.0.0.0 ink.edog.officeapps.live.com
0.0.0.0 ink.officeapps.live.com
0.0.0.0 ITAR-WAC-MDM.officeapps.live.com
0.0.0.0 layoutservice.edog.officeapps.live.com
0.0.0.0 layoutservice.officeapps.live.com
0.0.0.0 mcypherPiiDecryption.officeapps.live.com
0.0.0.0 mediasnap.edog.officeapps.live.com
0.0.0.0 mediasnap.officeapps.live.com
0.0.0.0 mobius.edog.officeapps.live.com
0.0.0.0 mobius.officeapps.live.com
0.0.0.0 mpns.imagetodoc.edog.officeapps.live.com
0.0.0.0 mpns.imagetodoc.officeapps.live.com
0.0.0.0 mrodevicemgr.edog.officeapps.live.com
0.0.0.0 mrodevicemgr.officeapps.live.com
0.0.0.0 mroeportal.edog.officeapps.live.com
0.0.0.0 nexusariaconnector.officeapps.live.com
0.0.0.0 nexus.officeapps.live.com
0.0.0.0 nexuspayload.officeapps.live.com
0.0.0.0 nexusrules.officeapps.live.com
0.0.0.0 o365discovery.edog.officeapps.live.com
0.0.0.0 o365discovery.officeapps.live.com
0.0.0.0 objectstore.ocs.officeapps.live.com
0.0.0.0 objectstore.odc.officeapps.live.com
0.0.0.0 objectstore.rs.officeapps.live.com
0.0.0.0 ocsa.edog.officeapps.live.com
0.0.0.0 ocsa.officeapps.live.com
0.0.0.0 ocsredir.edog.officeapps.live.com
0.0.0.0 ocsredir.officeapps.live.com
0.0.0.0 ocws-aad-edog.officeapps.live.com
0.0.0.0 ocws-aad-prod.officeapps.live.com
0.0.0.0 ocws.cosmic.sdf.officeapps.live.com
0.0.0.0 ocws.edog.officeapps.live.com
0.0.0.0 ocws.officeapps.live.com
0.0.0.0 odc.edog.officeapps.live.com
0.0.0.0 odc.officeapps.live.com
0.0.0.0 odcsm-aad-edog.officeapps.live.com
0.0.0.0 odcsm-aad-prod.officeapps.live.com
0.0.0.0 odcsm-bec-edog.officeapps.live.com
0.0.0.0 odcsm-bec-prod.officeapps.live.com
0.0.0.0 odcsm.edog.officeapps.live.com
0.0.0.0 odcsm.officeapps.live.com
0.0.0.0 officeapps.live.com
0.0.0.0 offline.officeapps.live.com
0.0.0.0 oloobe.officeapps.live.com
0.0.0.0 oloobe-prod-geneva.officeapps.live.com
0.0.0.0 ols.edog.officeapps.live.com
0.0.0.0 ols-idsapi.officeapps.live.com
0.0.0.0 ols.officeapps.live.com
0.0.0.0 ols.oloobe.officeapps.live.com
0.0.0.0 oss.officeapps.live.com
0.0.0.0 oss.sdf.officeapps.live.com
0.0.0.0 Pathfinder-RTC-MDM.officeapps.live.com
0.0.0.0 pims-s2s-000.oloobe.officeapps.live.com
0.0.0.0 plattest.edog.officeapps.live.com
0.0.0.0 pods.edog.officeapps.live.com
0.0.0.0 pods.officeapps.live.com
0.0.0.0 powerpointwrs-prod-osi2spo.edog.officeapps.live.com
0.0.0.0 pp1-collabrtcsc.officeapps.live.com
0.0.0.0 pp2-collabrtcsc.officeapps.live.com
0.0.0.0 ppe.oloobe.officeapps.live.com
0.0.0.0 pptca.edog.officeapps.live.com
0.0.0.0 pptca.officeapps.live.com
0.0.0.0 pptcms.edog.officeapps.live.com
0.0.0.0 pptcs.edog.officeapps.live.com
0.0.0.0 pptcs.officeapps.live.com
0.0.0.0 pptcs-prod-osi2spo.edog.officeapps.live.com
0.0.0.0 pptcts.edog.officeapps.live.com
0.0.0.0 pptcts.officeapps.live.com
0.0.0.0 pptexp.edog.officeapps.live.com
0.0.0.0 pptexp.officeapps.live.com
0.0.0.0 ppthms.edog.officeapps.live.com
0.0.0.0 pptliveagent.edog.officeapps.live.com
0.0.0.0 pptliveagent.officeapps.live.com
0.0.0.0 pptlive.edog.officeapps.live.com
0.0.0.0 pptmobius.edog.officeapps.live.com
0.0.0.0 pptmobius.officeapps.live.com
0.0.0.0 pptps.edog.officeapps.live.com
0.0.0.0 pptps.officeapps.live.com
0.0.0.0 pptservicecast.edog.officeapps.live.com
0.0.0.0 pptservicecast.officeapps.live.com
0.0.0.0 pptservicescast.edog.officeapps.live.com
0.0.0.0 pptservicescast.officeapps.live.com
0.0.0.0 pptsgs.edog.officeapps.live.com
0.0.0.0 pptsgs.officeapps.live.com
0.0.0.0 pptwrs.edog.officeapps.live.com
0.0.0.0 pptwrs.officeapps.live.com
0.0.0.0 present.edog.officeapps.live.com
0.0.0.0 present.officeapps.live.com
0.0.0.0 previewbundle.wac.gov.officeapps.live.com
0.0.0.0 Prod-MDM.officeapps.live.com
0.0.0.0 Prod-OCS-MDM.officeapps.live.com
0.0.0.0 Production-RTC-MDM.officeapps.live.com
0.0.0.0 prod-wac-kvauth.officeapps.live.com
0.0.0.0 Prod-WAC-MDM.officeapps.live.com
0.0.0.0 redfox.edog.officeapps.live.com
0.0.0.0 redfox.officeapps.live.com
0.0.0.0 remoteuls-test-cosmic.officeapps.live.com
0.0.0.0 roaming-aad-prod.officeapps.live.com
0.0.0.0 roaming.edog.officeapps.live.com
0.0.0.0 roaming.officeapps.live.com
0.0.0.0 rps.cek.oloobe.officeapps.live.com
0.0.0.0 rps.dek.oloobe.officeapps.live.com
0.0.0.0 rps-edog.officeapps.live.com
0.0.0.0 rpssecdek.oloobe.officeapps.live.com
0.0.0.0 RTC-Kusto-Prod.officeapps.live.com
0.0.0.0 RTC-MDM-Prod.officeapps.live.com
0.0.0.0 rtc-sdf-cosmic.officeapps.live.com
0.0.0.0 rtc-test-cosmic.officeapps.live.com
0.0.0.0 slideshow.edog.officeapps.live.com
0.0.0.0 slideshow.officeapps.live.com
0.0.0.0 snap.edog.officeapps.live.com
0.0.0.0 snap.officeapps.live.com
0.0.0.0 stateservice.edog.officeapps.live.com
0.0.0.0 stateservice.officeapps.live.com
0.0.0.0 test2.sdf.officeapps.live.com
0.0.0.0 testKeyvault.officeapps.live.com
0.0.0.0 test.sdf.officeapps.live.com
0.0.0.0 textanalysis.edog.officeapps.live.com
0.0.0.0 textanalysis.officeapps.live.com
0.0.0.0 Trailblazer-RTC-MDM.officeapps.live.com
0.0.0.0 uci.edog.officeapps.live.com
0.0.0.0 uci.officeapps.live.com
0.0.0.0 wac2fcm.officeapps.live.com
0.0.0.0 WAC-AAD-E03-EncryptCert.officeapps.live.com
0.0.0.0 WAC-AAD-E03-GAL-EncryptCert.officeapps.live.com
0.0.0.0 WAC-AAD-E03-PATHFINDER-EncryptCert.officeapps.live.com
0.0.0.0 WAC-AAD-E03-TRAILBLAZER-EncryptCert.officeapps.live.com
0.0.0.0 wac-ado-icm-integration.officeapps.live.com
0.0.0.0 wac-ado-icm-integration-test.officeapps.live.com
0.0.0.0 wacgriffinsecretmanagement.officeapps.live.com
0.0.0.0 WacSecretmanagementTest.officeapps.live.com
0.0.0.0 wordca.edog.officeapps.live.com
0.0.0.0 wordca.officeapps.live.com
0.0.0.0 wordcs.edog.officeapps.live.com
0.0.0.0 wordcs.officeapps.live.com
0.0.0.0 wordcs-prod-osi2spo.edog.officeapps.live.com
0.0.0.0 wordps.edog.officeapps.live.com
0.0.0.0 wordps.officeapps.live.com
0.0.0.0 wordsgs.edog.officeapps.live.com
0.0.0.0 wordsgs.officeapps.live.com
0.0.0.0 wordwrs.edog.officeapps.live.com
0.0.0.0 wordwrs.officeapps.live.com
0.0.0.0 wus.ocws.cosmic.sdf.officeapps.live.com

# This list contain most subdomains of officeclient.microsoft.com
0.0.0.0 officeclient.microsoft.com