06-16-2011
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Dear Guys ,
I have linux - redhat 6.1 and it is on the internet , works as email server forworder .
when i execute netstat -a command i got a strange output that i want to ask about it and how can i control it or drop it plz :
the output looks like :
tcp 0 1... (5 Replies)
Discussion started by: tamemi
5 Replies
2. UNIX for Dummies Questions & Answers
Hello
I need to close some ports on a box Solaris 8, which command I need to use.
Thanks for your replies (2 Replies)
Discussion started by: lo-lp-kl
2 Replies
3. Forum Support Area for Unregistered Users & Account Problems
Hi Administrators,
I've registered myself yesterday and have been waiting for my account to be activated. I've followed the instructions in the 'See this if you have an account but cannot post ' thread to request for an activation mail to be sent to my other email address, but still did not... (0 Replies)
Discussion started by: pl_cyber
0 Replies
4. UNIX for Advanced & Expert Users
Hi guys,
Just needed to know if all the ports above 1024 are closed by default. I know that below 1024 the ports are reserved for the kernel and ports above 1024 are reserved for user applications.
But by default, if I do not have a rule in my firewall to block ports above 1024, Will my... (4 Replies)
Discussion started by: firefox211
4 Replies
5. UNIX for Dummies Questions & Answers
Hi Everyone,
Good day.
Scenario:
2 unix servers -- A (SunOS) and B (AIX)
I have an ftp script to sftp 30 files from A to B which happen almost instantaneously i.e 30 sftp's happen at the same time.
Some of these sftp's fail with the following error:
ssh_exchange_identification: Connection... (1 Reply)
Discussion started by: jeevan_fimare
1 Replies
6. UNIX for Dummies Questions & Answers
Hi,
One of the users in our company can send but not receive email. We are using SENDMAIL in conjunction with procmail. The funny thing is that all his sent email is in his /var/spool/mail but the email client does not pick anything up! He is using IMAP.
Anyone see have any ideas? (2 Replies)
Discussion started by: mojoman
2 Replies
7. Shell Programming and Scripting
I have two application server appserver1 and appserver 2. A script will run from appserver1 which main activity is
1. Connect with the apserver 2 and run a script which saved on appserver2
2. the saved script will in appserver 2 will complete its task and generate a log
Problem i need to... (0 Replies)
Discussion started by: Imtiaz43
0 Replies
8. IP Networking
Hey guys, I'm having trouble with checking what ports are open on my Debian distro, which is reporting all ports closed, though they are clearly open
I am checking to see if ports are open with netcat:
nc 127.0.0.1 80
localhost 80 (http) : Connection refusedAs an example but on all ports... (0 Replies)
Discussion started by: 3therk1ll
0 Replies
9. UNIX for Beginners Questions & Answers
Hi there,
I am able to ping google.com
However, I am able to see like google.com (172.xx.xx.xx).
When the ping is done, like 5 packet transmitted but zero packet recieved. How do I go about re-mediating it? (6 Replies)
Discussion started by: alvinoo
6 Replies
LO(4) Kernel Interfaces Manual LO(4)
NAME
lo - software loopback network interface
SYNOPSIS
/sys/conf/SYSTEM:
NLOOP 1 # loop-back pseudo-device
DESCRIPTION
The loop interface is a software loopback mechanism which may be used for performance analysis, software testing, and/or local communica-
tion. As with other network interfaces, the loopback interface must have network addresses assigned for each address family with which it
is to be used. These addresses may be set or changed with the SIOCSIFADDR ioctl. The loopback interface should be the last interface con-
figured, as protocols may use the order of configuration as an indication of priority. The loopback should never be configured first
unless no hardware interfaces exist.
DIAGNOSTICS
lo%d: can't handle af%d. The interface was handed a message with addresses formatted in an unsuitable address family; the packet was
dropped.
SEE ALSO
intro(4N), inet(4F), ns(4F)
BUGS
Previous versions of the system enabled the loopback interface automatically, using a nonstandard Internet address (127.1). Use of that
address is now discouraged; a reserved host address for the local network should be used instead.
3rd Berkeley Distribution August 1, 1987 LO(4)