> Make sure to check documentation https://clickhouse.com/docs/en/ first. If the question is concise and probably has a short answer, asking it in Telegram chat https://telegram.me/clickhouse_en is probably the fastest way to find the answer. For more complicated questions, consider asking them on StackOverflow with "clickhouse" tag https://stackoverflow.com/questions/tagged/clickhouse 

> If you still prefer GitHub issues, remove all this text and ask your question here.

`            <networks incl="networks" replace="replace">
                <ip>127.0.0.1</ip>
                <host_regexp>^abc00[1-6]$</host_regexp>
            </networks>
`
`clickhouse-client --host abc003
ClickHouse client version 22.8.2.11 (official build).
Connecting to abc003:9000 as user default.

If you have installed ClickHouse and forgot password you can reset it in the configuration file.
The password for default user is typically located at /etc/clickhouse-server/users.d/default-password.xml
and deleting this file will reset the password.
See also /etc/clickhouse-server/users.xml on the server where ClickHouse is installed.

Code: 516. DB::Exception: Received from abc003:9000. DB::Exception: default: Authentication failed: password is incorrect or there is no user with such name. (AUTHENTICATION_FAILED)`


`if use <host> no problem`
return check_address(subnet_v6.getPrefix());
        return (client_v6 & subnet_v6.getMask()) == subnet_v6.getPrefix();
    };
    for (const auto & subnet : subnets)
        if (check_subnet(subnet))
            return true;
    
    auto check_name = [&](const String & name_)
    {
        if (boost::iequals(name_, "localhost"))
            return is_client_local();
        try
        {
            return isAddressOfHost(client_v6, name_);
        }
        catch (const Exception & e)
        {
            if (e.code() != ErrorCodes::DNS_ERROR)
                throw;
            
            LOG_WARNING(
                &Poco::Logger::get("AddressPatterns"),
                "Failed to check if the allowed client hosts contain address {}. {}, code = {}",
                client_address.toString(), e.displayText(), e.code());
            return false;
        }
    };
    for (const String & name : names)
        if (check_name(name))
            return true;