"The --data-length option can be used to send a fixed-length random payload to every port. If an ICMP port unreachable error (type 3, code 3) is returned, the port is closed."
Check first nmap works this way.
Last edited by Scott; 05-21-2013 at 09:41 AM..
Reason: Use code tags, please...
So who uses antivirus software on your linux servers? A co-worker and myself have been debating on the need or lack there of for antivirus on a linux webserver running Apache even if that's the only service that may be running. He thinks no and I am of the opinion that it is needed. My rational... (1 Reply)
At the company where I work, use a product called VSI-FAX. It works nicely, but the maintenance has proven to be very poor grade. So, I'm interested in any experiences using other fax servers that run on Linux or AIX and what issues/gotchas were run into and overcome and how.
I'm considering... (0 Replies)
1.On x86 Machines ( Pentium4 ), What is the maximum number of Services( sshd, ntpd,named ,samba, etc.) that can be installed.? Is there a rule of thumb to attain the best possible performence.?
2. Is there a systematic way to boot a remote Machine.?
3. Are there any problems of having two... (2 Replies)
Hi
Is there any shell script that accesses multiple linux servers to get details such as CPU usage, RAM used etc. The access of the servers must be parallel not serial in the sense it must ping all the servers at a time to get information.The script has to be triggered from a host system and get... (7 Replies)
I've created a test script, which is located in $HOME/bin. The script runs as expected with no issues. However, upon echo'ing the $path variable the location of my script is not located in any of the directories listed in $path. So my question is, how does shell know where the script is located... (2 Replies)
Discussion started by: BrandonD
2 Replies
LEARN ABOUT REDHAT
line
line(1) User Commands line(1)NAME
line - read one line
SYNOPSIS
line
DESCRIPTION
The line utility copies one line (up to and including a new-line) from the standard input and writes it on the standard output. It returns
an exit status of 1 on EOF and always prints at least a new-line. It is often used within shell files to read from the user's terminal.
EXIT STATUS
Exit status is:
0 Successful completion
>0 End-of-file on input.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO sh(1), read(2), attributes(5)SunOS 5.10 1 Feb 1995 line(1)