NTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to being used in distributed denial-of-service (DDoS) attacks. Please also take this opportunity to defeat denial-of-service attacks by implementing Ingress and Egress filtering through BCP38.
ntp-4.2.8p15 was released on 23 June 2020. It addresses 1 medium-severity security issue in ntpd, and provides 13 non-security bugfixes over 4.2.8p13.
Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.
Administrator Skills Assumptions
For each of these, the requirement is either pre-existing knowledge/skill, or the willingness to spend significant time (i.e. from hours to days) learning these.
- Operating system administration: Ability to use Unix/Linux command line tools (or equivalent Windows tools), including ability to move/copy/delete files, change permissions, view web server log files, set environment variables, use a text editor, etc.
- Web server administration: Ability to do basic setup, e.g. ability to edit config files or use GUI configuration tools to enable CGI scripts on a directory.
- Program compilation: Where RCS is not pre-installed (that is most Unix systems), the ability to download and compile the RCS program from source, including use of
make, etc. This is often not necessary on Linux or Windows.
- Troubleshooting: Ability to perform tests, inspect error logs, talk to technical support (whether in an IT department or web hosting provider) and read documentation in order to help with diagnosing installation problems.
Installing TWiki is not
recommended for people who only know HTML and web design, unless they are willing to learn the above, or team up with someone who can handle the installation.
Although the TWikiInstallationGuide
is quite complete, there will on occasion be parts that don't work in your local environment (particularly with TWiki:Codev/TWikiOnWebHostingSites
, which are sometimes challenging even for those with good OS and web server skills).
There are many excellent resources for learning how to administer your OS and web server, including books, web sites, web forums, IM and email lists. The TWiki:Support
web must not
be depended on as a resource for this purpose - in other words, it is not there to answer basic questions about operating system and web server administration. Asking and answering questions is time consuming for all concerned and is best used for specific TWiki related
issues, rather than helping you learn the OS and web server.
One of the best training courses for Linux is Basic Linux Training
- this is a 2 month distance-learning course (via email). The course operators are friendly, and all students are newbies. A nice tool for people migrating from Windows is http://www.MidnightCommander.org/
. It is already installed on Linux systems: try
to get help.
- 27 Apr 2002
- 15 Jan 2003
- 28 May 2003