when we send email or try to telnet to a site that requires reverse lookup to be enabled the connection is refused.
i have the O'Reilly book DNS and Bind and in it are examples of what the reverse zone file should look like. i don't see a line that defines an email server in the example. is... (1 Reply)
I'm trying to create a reverse lookup file. Below are the error messages I get in the messages file, when I start named. Below the error messages is a copy of the reverse lookup file I'm trying to use. I'm using Bind version 8.1.2. Would someone recommend the correct values and if you see any... (2 Replies)
our server (solaris, bind v 8.1.2) is suppose to be the authoritive or the master and our isp's server is suppose be the secondary. i've created a reverse lookup zone file and added an entry for it in my named.conf file. i've restarted the dns daemon and i don't have any errors in... (1 Reply)
We have Unix configured as our external DNS, forward DNS is working properly, however Reverse lookup is not working. Any idea what the problem is? I have checked the named.boot and .rev file and everything seems to be correctly. However it appears that the reverse zone file in the named.boot... (2 Replies)
Help having problems accesing various sites that require me to be a registered .gov domain. My IP is a registered as an .gov but my nameserver record has changed on my DNS configurartion(I don't know why) from something.gov to somethingelse.gov. Same IP, though.
When a reverse lookup is... (1 Reply)
Write a quick shell snippet to find all of the IPV4 IP addresses
in any and all of the files under /var/lib/output/*, ignoring
whatever else may be in those files. Perform a reverse lookup on
each, and format the output neatly, like "IP=192.168.0.1,
... (0 Replies)
hey guys,
can anybody help me out here on the following:
grep '^\{1,3\}\.\{1,3\}\.\{1,3\}\.\{1,3\}$' ravi.txt mary.txt lisa.txt https://www.unix.com/images/misc/progress.gif
i.e what i did was found ip addreses from different files
and then i want... (1 Reply)
Originally I had the server at home and on Comcast so I used dyndns.org for DNS.
Once the server got a bit more popular, I leased a server at a colo facility. They set up the server name in their DNS so I didn't really have any reason to manage my own DNS. DynDNS was managing the domains and I... (7 Replies)
I came back to my solaris 10 system after a week of being gone and xterm no longer work. I checked into it and the system doesn't reverse lookup my client system. There is a manual entry for my system in the /etc/hosts file and a forward lookup works fine, but I still can't get reverse lookup. Any... (0 Replies)
Hi guys. Ok so let me lay out my configs. I can do a NSlookup from client to server BUT NOT a reverse lookup.
DNS server: Optimus.jaydomain.com
IP : 192.168.1.50
DNS Client: Megatron.jaydomain.com
IP : 192.168.1.60
On Sever:
# cat /etc/named.conf
//
// named.conf
//
// Provided... (4 Replies)
Discussion started by: Junaid Subhani
4 Replies
LEARN ABOUT HPUX
sum
sum(1) General Commands Manual sum(1)NAME
sum - print checksum and block or byte count of file(s)
SYNOPSIS
[file ...]
Remarks
is obsolescent and should not be used in new applications that are intended to be portable between systems. Use instead (see cksum(1)).
DESCRIPTION
calculates and prints to standard output a checksum for each named file, and also prints the size of the file in 512 byte blocks, rounded
up.
The default algorithm is a 16-bit sum of the bytes in which overflow is ignored. Alternate algorithms can be selected with the and
options.
Standard input is used if no file names are given.
is typically used to verify data integrity when copying files between systems.
Options
recognizes the following options:
Use an alternate algorithm in which the 16-bit sum is right rotated
with each byte in computing the checksum.
Use the 32-bit cyclical redundancy check (CRC) algorithm used by
RETURN VALUE
returns the following values upon completion:
All files were processed successfully.
One or more files could not be read or some other error occurred.
If an inaccessible file is encountered, continues processing any remaining files, but the final exit status is affected.
DIAGNOSTICS
Read error conditions are indistinguishable from end of file on most devices; check the block or byte count.
WARNINGS
This command is likely to be withdrawn from X/Open standards. Applications using this command might not be portable to other vendors'
platforms. The usage of cksum(1) is recommended.
SEE ALSO cksum(1), wc(1).
STANDARDS CONFORMANCE sum(1)