> 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`
{
    if (any_host)
        return true;
    IPAddress client_v6 = toIPv6(client_address);
    std::optional<bool> is_client_local_value;
    auto is_client_local = [&]
    {
        if (is_client_local_value)
            return *is_client_local_value;
        is_client_local_value = isAddressOfLocalhost(client_v6);
        return *is_client_local_value;
    };
    if (local_host && is_client_local())
        return true;
    
    auto check_address = [&](const IPAddress & address_)
    {
        IPAddress address_v6 = toIPv6(address_);
        if (address_v6.isLoopback())
            return is_client_local();
        return address_v6 == client_v6;
    };
    for (const auto & address : addresses)
        if (check_address(address))
            return true;
    
    auto check_subnet = [&](const IPSubnet & subnet_)
    {
        IPSubnet subnet_v6 = toIPv6(subnet_);
        if (subnet_v6.isMaskAllBitsOne())