Servers WebNTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to use in a distributed denial-of-service (DDoS) attack. Please also take this opportunity to defeat denial-of-service attacks by implementing ingress and Egress filtering through BCP38.
The final two security bugs reported by Google's Security Team have been fixed as of ntp-4.2.8p1.
A new set of mode 6 vulnerabilities has been discovered and, while these vulnerabilities can be reduced by making sure you haverestrict default … noqueryin yourntp.conffile, the best and most complete way to avoid these vulnerabilities is to install and deployntp-4.2.8p1which was released on 04 February 2015.
Please see the NTP Security Notice for vulnerability and mitigation details.Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.
ServerForm Definition for the Servers web
| Name: | Type: | Size: | Values: | Tooltip message: | Attributes: |
|---|---|---|---|---|---|
| ServerStratum | select | 1 | StratumTwo, StratumOne, Inactive | The stratum this time server normally operates at | |
| CountryCode | text | 6 | 2 letter alphanumeric ISO Country Code not the telephone code or post code | M | |
| Hostname | text | 48 | The fully qualified host name of this time server | M | |
| IP Address | text | 32 | The IPv4 address of the time server | M | |
| IPv6 Address | text | 32 | The IPv6 address of this time server | ||
| UseDNS | radio | 1 | Yes, No | Use DNS instead of hostname | |
| PoolMember | radio | 1 | No, Yes | Include this server in pool.ntp.org lists? | |
| ServerLocation | text | 48 | The City/State/Province where this server is located | M | |
| HostOrganization | text | 48 | The name of the organization hosting, sponsoring, or operating this time server | ||
| GeographicCoordinates | text | 48 | The geographic coordinates of this time server | ||
| ServerSynchronization | text | 48 | Server synchronization (e.g. type of ref-clock) | ||
| ServiceArea | text | 48 | Enter your service area | M | |
| AccessPolicy | select | 1 | OpenAccess, RestrictedAccess, ClosedAccess | Select your access policy | |
| AccessDetails | text | 48 | Enter your access policy details | ||
| NotificationMessage | radio | 1 | Yes, No | Send notification message? | |
| AutoKey | radio | 1 | No, Yes | Does this server support Autokey authentication? | |
| AutoKeyURL | text | 48 | Where to obtain the client key | ||
| SymmetricKey | radio | 1 | No, Yes | Is Symmetric Key authentication supported by this server? | |
| SymmetricKeyType | checkbox | 2 | DES, MD5 | Types of Symmetric Keys available | |
| SymmetricKeyURL | text | 48 | Where to obtain information about Symmetric Key authentication | ||
| ServerContact | text | 48 | The e-mail address for contacting the time server operator | M |
Servers.ServerForm moved from Servers.WebForm on 2003-10-30 - 13:42 by SteveKostecke - put it back
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