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.
Text Formatting FAQ
The most frequently asked questions about text formatting are answered. Also, TextFormattingRules
contains the complete TWiki shorthand system on one quick reference page.
How do I make a separator?
Create a separator - a horizontal rule - by entering three dashes at the beginning of a blank line:
. You can enter more than three if you like, for a more visible separator in edit mode:
How do I create a heading?
You can create six sizes of headings - <h1>...<h6> in HTML - by typing, from the beginning of a line, three dashes (-), from one to six plus signs (+), a space, and your heading text. The FAQ questions on this page are created with:
---+++ Have a question?
- You can insert a nested table of contents, generated from headings, by placing
%TOC% wherever you like on a page (see TWikiVariables for more
Text enclosed in angle brackets like <filename> is not displayed. How can I show it as it is?
TWiki interprets text as HTML, and the '<' and '>' characters define where HTML commands start and end. Text inside
angle brackets is treated as HTML, and ignored if it doesn't actually do anything - either way, the brackets and its contents are not displayed.
If you want to display angle brackets, enter them as HTML codes instead of typing them in directly:
- You enter:
(a > 0) Result:
(a > 0)
Some words appear highlighted, with a "?" link at the end. How can I prevent that?
A question mark after a word is a link to a topic that doesn't yet exist - click it to create the new page. This is a TWiki feature - typing a MeaningfulTitle
in a comment is an invitation for someone else to add a new branch to the topic.
with an exclamation point:
!WikiStyleWord displays as WikiStyleWord
How can I write fixed font text?
The quickest way is to enclose the text in equal signs:
- You enter:
Proportional text, =fixed font=, proportional again. Result: Proportional text,
fixed font, proportional again.
Text I enter gets wrapped around. How can I keep the formatting as it is?
TWiki interprets text as HTML, so you can use the
HTML option to keep the new line of text as is. Enclose the text in <pre> </pre>, or in TWiki's own <verbatim> </verbatim> tag:
This text will keep its format as it is:
Unit Price Qty Cost
------- ------ --- ------
aaa 12.00 3 36.00
tag is standard HTML;
is a special TWiki tag that forces text to fixed font mode, and also prevents other tags and TWiki shortcuts from being expanded.
How do I create tables?
There are three possibilities:
1. Use Wiki rule with "|" vertical bars
- Use Wiki rule with "|" vertical bars.
- Use HTML tables with <table>, <tr>, <td> tags.
- Use preformatted text with <verbatim> tags.
2. Use HTML tables with <table>, <tr>, <td> tags
- Example text:
| cell A1 | cell B1 | cell C1 |
| cell A2 | cell B2 | cell C2 |
- Example output:
| cell A1 || cell B1 || cell C1 |
| cell A2 || cell B2 || cell C2 |
This is a manual process using HTML commands.
<th> Head A </th> <th> Head B </th>
<td> Cell A2 </td> <td> Cell B2 </td>
<td> Cell A3 </td> <td> Cell B3 </td>
3. Use preformatted text with <verbatim> tags
| Head A || Head B
| Cell A2 || Cell B2
| Cell A3 || Cell B3
See "Text I enter gets wrapped around..."
Can I include images on a page?
Yes. The easiest way is to attach
a GIF, JPG or PNG file to a topic and then to place it with:
. This works only for the page that the image is attached to.
To place an image on any page, ther are two ways of including inline images.
1. Using URL ending in .gif, .jpg, .jpeg, .png
This is a simple and automatic way of including inline images. Simply write the URL of the image file, this will create the inline image for you. NOTE:
The images must be accessible
as a URL.
- You enter:
TWiki https://support.ntp.org/pub/TWiki/TWikiLogos/twikilogo88x31.gif logo.
Result: TWiki logo.
You can upload images directly to your server with FTP access. You can also attach
image files to a topic - you could even create a dedicated image topic, like
- and then link to the images directly:
2. Using <img> tag
This is a manual process where you have more control over the rendering of the image. Use the <img> tag of HTML to include GIF, JPG and PNG files. Note:
The display of the topic is faster if you include the
parameters that have the actual image size. http://www.htmlhelp.com/reference/wilbur/special/img.html
has more on inline images.
- You enter:
TWiki <img src="https://support.ntp.org/pub/TWiki/TWikiLogos/twikilogo88x31.gif" width="88" height="31" border="0" alt="logo" /> logo.
Can I write colored text?
defines some commonly used colors: %YELLOW%, %RED%, %PINK%, %PURPLE%, %TEAL%, %NAVY%, %BLUE%, %AQUA%, %LIME%, %GREEN%, %OLIVE%, %MAROON%, %BLACK%, %GRAY%, %SILVER%
- You enter:
%RED% red text %ENDCOLOR% and %GREEN% green text %ENDCOLOR% Result: red text and green text
text must end with
. If you want to switch from one color to another one you first need to end the active color with
, e.g. write
%RED% some text %ENDCOLOR% %GREEN% more text %ENDCOLOR%
If you need more colors you can use HTML, like
<font color="#ff0000"> red text </font>
. You can also use the up-to-date
attribute - ex:
- placed in most HTML tags.
is an all-purpose choice:
. Only old (like 3.x IE & NS) browsers have a problem with
The code is the hexadecimal RGB color code
, which is simply Red, Green and Blue values in hex notation (base 16, 0-F). For pure red, the RGB components are 255-0-0 - full red (255), no green or blue. That's FF-0-0 in hex, or
for Web page purposes. StandardColors
lists basic colors.
- 15 Aug 2004
- 14 Sep 2001