Errata

Stopping Spam

Errata for Stopping Spam

Submit your own errata for this product.

The errata list is a list of errors and their corrections that were found after the product was released.

The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.

Color Key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update

Version Location Description Submitted by Date submitted
Printed Page 20
Section about Christmas "virus"

The technical definition of a "computer virus" includes the condition that a
virus should be able to replicate itself. The Christmas worm did not self-
replicate, and is thus technically a "worm," not a "virus."

 Anonymous   
Printed Page 43
In the third line from the bottom, the term "dotted octet" is incorrect.

The term probably intended here is "dotted quad." An IP address contains four
octets (sic) but they are not, by themselves, "dotted" (and in any case,
calling an IP address "an ... octet" is definitely incorrect).

 Anonymous   
Printed Page 83
Counting from the top of the page, including empty lines, the Procmail

example contains the following errors:

line 3: Missing dollar sign prevents $MYNAME from being expanded. Change to:

* $ ! ^From +$MYNAME

line 5: (Should perhaps also specify -z.)

line 7: Should always use locking when writing to a file; additionally, should
probably wait for exit status, and ignore any write errors. Thus, change line
to:

:0wi:

line 12: (Perhaps you should use $FILTER_PASSWD instead, in case the password
would happen to contain regular expression special characters.)

line 14: Should always use locking when writing to a file; add a second colon
after the c.

line 16: (Should perhaps ignore errors when writing. Add i flag and maybe w
flag; i.e., change :0 to :0wi).

line 21: (Multiple echos could be substituted with a multiline string instead,
although getting newlines into that is tricky.)

 Anonymous   
Printed Page 157
The hiss.han.de mailing list has not been operational for a long time.

Some other sites accept 9781565923881 samples, but do not share their corpus of spam
with others. I am unaware of any serious heir to the han.de list.

 Anonymous   
Printed Page 181
September 19 item

The text implies that the ping command is explained in Chapter 7, but I could
find no such explanation in that chapter.

For what it's worth, the Index has no mention of ping at all.

 Anonymous