Network becomes slow and return fast only after restart network
Hi,
I have 2 machines in production environment:
1. redhat machine for application
2. DB machine (oracle)
The application doing a lot of small read&writes from and to the DB machine.
The problem is that after some few hours the network from the application to the DB becomes very slow and it returns to the normal only after: Before: After restart network:
What can it be?
How can i solve this strange behavior?
Hello, everyone:
i encounter a problem these days , pls help me ,thanks in advance.
my env:
machine: ES40 A ES40 B
os: true64 Unix 4.0f
note: src.tar 8M network card speed 100M
my problem:
... (3 Replies)
Hi,
I am trying to send oracle archives over WAN and it is taking hell a lot of time. To reduce the time, I tried to gzip the files and send over to the other side. That seems to reduce the time. Does anybody have experienced this kind of problem and any possible ways to reduce the time.
... (1 Reply)
At work, I'm in a Solaris environment working with csh, and $PATH is populated with anywhere between 10 and 20 entries.
Last week, every command I issued (even "ls") took several seconds, if not an entire minute, to run. Once I moved "/home/sybase/bin" to the end of $PATH, certain commands... (2 Replies)
hey guys,
We have two Sun x2100 servers running RHEL5 in a test environment. Both servers are fresh OS installs and hooked up to the same network switch.
When ssh'ing to one server, there is a significant delay, while ssh'ing to the other server, the connection is almost instant. We are... (2 Replies)
Hi All,
Please let me know the command to restart the network interface and enable it on boot in AIX, similar to /etc/init.d/network restart in Redhat.
Thanks,
Sunil.K
please watch out to post in the right subforum! (9 Replies)
Hi Guys,
I've inherited a mess of an infrastructure in my new job, there hasn't been a sys admin in post for about a year, so things are falling apart. The first thing to break after I started was the printer server. I have it working again, and people can print, however it's very slow, slower... (0 Replies)
I have identical M5000 machines that are needing to transfer very large amounts of data between them. These are fully loaded machines, and I've already checked IO, memory usage, etc... I get poor network performance even when the machines are idle or copying via loopback. The 10 GB NICs are... (7 Replies)
Hello everyone,
I've been a life long Unix/Linux user but I'll be the first to admit I have little specific AIX knowledge at this point and I've inherited these systems for better or worse so please forgive if I ask something in the wrong context. And yes, I've searched google for 3 days now :)... (3 Replies)
Hello,
I would like to do follow steps.
Set a static IP-Adress on eth0 (For Testing)
Set DHCP on eth0
All steps should be done without a single reboot.
/etc/network/interfaces
iface eth0 inet static
address 192.0.2.7/24
gateway 192.0.2.254How do i perform... (3 Replies)
Discussion started by: int3g3r
3 Replies
LEARN ABOUT DEBIAN
nbtscan
NBTSCAN(1) General Commands Manual NBTSCAN(1)NAME
nbtscan -- program for scanning networks for NetBIOS name information
SYNOPSIS
nbtscan [-v] [-d] [-e] [-l] [-t timeout] [-b bandwidth] [-r] [-q] [-s separator] [-h] [-m retransmits] [-f filename |
scan_range]
DESCRIPTION
This manual page documents briefly the nbtscan command.
This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page.
nbtscan is a program for scanning IP networks for NetBIOS name information. It sends NetBIOS status query to each address in supplied range
and lists received information in human readable form. For each responded host it lists IP address, NetBIOS computer name, logged-in user
name and MAC address (such as Ethernet).
OPTIONS
A summary of options is included below.
-v Verbose output. Print all names received from each host.
-d Dump packets. Print whole packet contents. Cannot be used with -v, -s or -h options.
-e Format output in /etc/hosts format.
-l Format output in lmhosts format. Cannot be used with -v, -s or -h options.
-t timeout
Wait timeout seconds for response. Default 1.
-b bandwidth
Output throttling. Slow down output so that it uses no more that bandwidth bps. Useful on slow links, so that ougoing queries
don't get dropped.
-r Use local port 137 for scans. Win95 boxes respond to this only. You need to be root to use this option.
-q Suppress banners and error messages.
-s separator
Script-friendly output. Don't print column and record headers, separate fields with separator.
-h Print human-readble names for services. Can only be used with -v option.
-m retransmits
Number of retransmits. Default 0.
-f filename
Take IP addresses to scan from file "filename"
scan_range
What to scan. Can either be single IP like 192.168.1.1 or range of addresses in one of two forms: xxx.xxx.xxx.xxx/xx or
xxx.xxx.xxx.xxx-xxx.
BUGS
Report bugs to alla@sovlink.ru (that's autor of nbtscan). I cannot promise to do anything but I might well want fix it. Remember: no war-
ranty. At least it's worth what you payed for it.
AUTHOR
This manual page was written by Ryszard Lach rla@debian.org for the Debian GNU/Linux system (but may be used by others) and is based on
nbtscan author's README file. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Docu-
mentation License, Version 1.1 or any later version published by the Free Software Foundation.
NBTSCAN(1)