How can I send a message for all the users connected into the system at the same time? Let's say I need to reboot the server and I ask the users to save their jobs becasue the server will be rebooted? (5 Replies)
Hi
We have 50 million records in mainframes DB2. We have a requirement to Record the Change Data Capture(CDC) records.
i.e New Records or Updated Records that were added into the DB2.
Unfortunately we dont have any column indicators to give the details of the changes made to the records.
... (8 Replies)
Hi, I have 7 terabytes of tar files, one for every single day since 1980. Inside these tar files are GRIB files, each with 100+ variables. There's 8 GRIBs in each tar, corresponding to different times of the day. I need 6 friggin variables..., and it takes TWO WEEKS TO EXTRACT ALL THE TAR FILES... (3 Replies)
hey guys
I would really appreciate some help, i need to do a project for a job that requires minimal UNIX scripting and im REALLY stuck
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Hi all! I need help to do a few things with a .txt file using egrep.
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... (1 Reply)
I have a script that I am using to copy around 40-70k files to a NFS NAS.
I have posted my code below in hopes that someone can help me figure out a faster way of achieving this.
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I found that there was a SMF log file: /var/svc/log/milestone-multi-user-server:default.log.0 which occupied around 19G bytes.
Please help me how to purge this massive file.
Can I just use cat /dev/null > /var/svc/log/milesto..... to this file without any interruption to a non-stop system?... (11 Replies)
Discussion started by: AlexLi
11 Replies
LEARN ABOUT CENTOS
unbound-streamtcp
unbound-streamtcp(1) unbound unbound-streamtcp(1)NAME
unbound-streamtcp - unbound DNS lookup utility
SYNOPSIS
unbound-streamtcp [-unsh] [-f ipaddr[@port]] name type class
DESCRIPTION
unbound-streamtcp sends a DNS Query of the given type and class for the given name to the DNS server over TCP and displays the response.
If the server to query is not given using the -f option then localhost (127.0.0.1) is used. More queries can be given on one commandline,
they are resolved in sequence.
The available options are:
name This name is resolved (looked up in the DNS).
type Specify the type of data to lookup.
class Specify the class to lookup for.
-u Use UDP instead of TCP. No retries are attempted.
-n Do not wait for the answer.
-s Use SSL.
-h Print program usage.
-f ipaddr[@port]
Specify the server to send the queries to. If not specified localhost (127.0.0.1) is used.
EXAMPLES
Some examples of use.
$ unbound-streamtcp www.example.com A IN
$ unbound-streamtcp -f 192.168.1.1 www.example.com SOA IN
$ unbound-streamtcp -f 192.168.1.1@1234 153.1.168.192.in-addr.arpa. PTR IN
EXIT CODE
The unbound-streamtcp program exits with status code 1 on error, 0 on no error.
AUTHOR
This manual page was written by Tomas Hozza <thozza@redhat.com>.
NLnet Labs Mar 21, 2013 unbound-streamtcp(1)