> 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 (other.containsAnyHost())
    {
        clear();
        return;
    }
    if (other.containsLocalHost())
        removeLocalHost();
    for (const IPAddress & address : other.getAddresses())
        removeAddress(address);
    for (const IPSubnet & subnet : other.getSubnets())
        removeSubnet(subnet);
    for (const String & name : other.getNames())
        removeName(name);
    for (const String & name_regexp : other.getNameRegexps())
        removeNameRegexp(name_regexp);
    for (const String & like_pattern : other.getLikePatterns())
        removeLikePattern(like_pattern);
}
bool operator ==(const AllowedClientHosts & lhs, const AllowedClientHosts & rhs)
{
    return (lhs.any_host == rhs.any_host) && (lhs.local_host == rhs.local_host) && (lhs.addresses == rhs.addresses)
        && (lhs.subnets == rhs.subnets) && (lhs.names == rhs.names) && (lhs.name_regexps == rhs.name_regexps)
        && (lhs.like_patterns == rhs.like_patterns);
}
bool AllowedClientHosts::contains(const IPAddress & client_address) const