King0770-Notes-Ultra-Restrictive-Sending-And-Receiving

Revision as of 01:09, 16 February 2018 by King0770 (talk | contribs) (Scenario III)

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Scenario I

You have one or two accounts you want to prevent from sending messages to other internal accounts, but still receive messages.

Use cbpolicyd

Create a internal_restrict group, and a Access Control name called DenySendAccess.

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policies" VALUES(6,'Restrict_Internal',0,'Restrict_Internal',0);"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policy_members" VALUES(6,6,'%internal_restrict','%internal_domains','',0);"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policy_groups" VALUES(3,'internal_restrict',0,'internal_restrict');"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "access_control" VALUES(1,6,'DenySendAccess','REJECT','REJECT','',0);"

This should work as well if you need to prevent the user from sending messages to any accounts.

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policy_members" VALUES(6,6,'%internal_restrict','any','',0);"


Now it's time to add a couple of internal accounts to prevent sending messages.

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policy_group_members" VALUES(7,3,'rick@example.com.local',0,'Restrict Rick');"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policy_group_members" VALUES(8,3,'john@example.com',0,'Restrict John');"

Avoid ID constraints

Getting this error?

Error: UNIQUE constraint failed: policy_group_members.ID

Try this small script

#!/bin/bash
#Description add user to the policy_group_members

if [ -z "$1" ]; then echo "Usage $0 user@example.com"; exit 0
else

TEST=`sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "select * from policy_group_members;" "" | tail -1 | awk -F"|" '{ print $1 }'`

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policy_group_members" VALUES(`echo $(( $TEST + 1 ))`,3,'$1',0,'NULL');"
fi

Scenario II

Restrict users to certain domain, as per https://wiki.zimbra.com/wiki/Restrict_users_to_certain_domain
Another cbpolicyd solution

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policies" VALUES(7,'Local_Only',0,'Local_Only',0);"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policy_members" VALUES(8,7,'%internal_domains','!%internal_domains','',0);"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "access_control" VALUES(3,7,'LocalSendAccess','REJECT','REJECT','',0);"

Scenario III

Quota Policy, contributed by Karl Buchner

As an example, lets say your Company decides the policy for all traffic (not going through the bulk MTAs) is sending a maximum of 10 messages every 10 minutes (600 seconds), and receiving a maximum of 5 messages in 10 minutes (600 seconds).

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policies" VALUES('Zimbra CBPolicyd Policies', 0, 'Zimbra CBPolicyd Policies');"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "policy_members" VALUES(6, 'any', 'any');"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "quotas" VALUES (6, 'Sender:user@domain','Sender:user@domain', 600, 'DEFER', 'Deferring: Too many messages from sender in last 10 minutes');"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "quotas" VALUES (6, 'Recipient:@domain', 'Recipient:@domain', 600, 'REJECT');"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "quotas_limits" VALUES(3, 'MessageCount', 10);"

sqlite3 /opt/zimbra/data/cbpolicyd/db/cbpolicyd.sqlitedb "INSERT INTO "quotas_limits" VALUES(4, 'MessageCount', 5);"

Note: this assumes you have enabled cbpolicyd and immediately inject these contents, because they are based on the default policies, policy_members, quotas, quota_limits existing already, occupying certain IDs.

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