05-17-2017
Also, one of Robert Grossblatt's famous laws of life and design: "If you can't afford to blow it up, you can't afford to use it."
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
there are commands to monitor the memory, paging, io... how about network traffic. i mean commands to see whether the network traffic (LAN) is congested? the closest i got is netstat
thanks (6 Replies)
Discussion started by: yls177
6 Replies
2. Cybersecurity
Hi,
Can someone give me the clue on how to capture network traffic at gateway.
Thanx (2 Replies)
Discussion started by: kayode
2 Replies
3. Programming
I am developing a Network Appliation to monitor computers in a network.
Specs are
App monitors the current web page viewed in each system
App also can shutdown the computer in the network
App can show all process run by each computer in the network
I am now confused how to start my... (2 Replies)
Discussion started by: valaparambil88
2 Replies
4. Infrastructure Monitoring
Hi all,
Got a strange one here, well not so much strange, different :-)
I need to work out if a server is particulary chatty, whether its talking / communicating heavily to a particular server, as Im planning to physically move the server to a different server, over a link. Hence the... (6 Replies)
Discussion started by: sbk1972
6 Replies
5. HP-UX
I Colleagues,
Somebody can say me how to monitoring traffic in the network. also I am interested in monitoring memory. if somebody to know a guide with command advanced in unix welcome for me.
Thank you for adcanced. (0 Replies)
Discussion started by: systemoper
0 Replies
6. Red Hat
How to monitor network device traffic using MRTG?
How can I add network devices in MRTG configuration to monitor? (2 Replies)
Discussion started by: manalisharmabe
2 Replies
7. UNIX Desktop Questions & Answers
Hello,
I am working in office, where, more than 60 clients machines (only 16 machines are on windows) are there and one server Centos Server, I have configured clients with server, so that internet will be used form only one IP. Only 1 ip is assigned, but now a days, my client machines are... (2 Replies)
Discussion started by: RedRocks!!
2 Replies
8. Infrastructure Monitoring
If I would like to know what connection , data , traffic in a network port ( eth0 ) , what can I do ?
ps. because I always found the network is very slow , so I would like what the network port is doing .
Thanks
Login ID ust3 is currently in read-only mode for multiple infractions. Creating... (0 Replies)
Discussion started by: ust03
0 Replies
9. UNIX for Advanced & Expert Users
Hi All
I am resilience testing an application that is spread across multiple servers.
One thing I will need to do soon is throttle the network traffic for specific interfaces within the test cluster. Specifically, maybe make a connection take twice or three times as long to respond....
I... (3 Replies)
Discussion started by: bbq
3 Replies
LEARN ABOUT FREEBSD
nfsuserd
NFSUSERD(8) BSD System Manager's Manual NFSUSERD(8)
NAME
nfsuserd -- load user and group information into the kernel for NFSv4 services
SYNOPSIS
nfsuserd [-domain domain_name] [-usertimeout minutes] [-usermax max_cache_size] [-verbose] [-force] [num_servers]
DESCRIPTION
nfsuserd loads user and group information into the kernel for NFSv4. It must be running for NFSv4 to function correctly, either client or
server.
Upon startup, it loads the machines DNS domain name, plus timeout and cache size limit into the kernel. It then preloads the cache with group
and user information, up to the cache size limit and forks off N children (default 4), that service requests from the kernel for cache
misses. The master server is there for the sole purpose of killing off the slaves. To stop the nfsuserd, send a SIGUSR1 to the master
server.
The following options are available:
-domain domain_name
This option allows you to override the default DNS domain name, which is acquired by taking either the suffix on the machine's host-
name or, if that name is not a fully qualified host name, the canonical name as reported by getaddrinfo(3).
-usertimeout minutes
Overrides the default timeout for cache entries, in minutes. If the timeout is specified as 0, cache entries never time out. The
longer the time out, the better the performance, but the longer it takes for replaced entries to be seen. If your user/group database
management system almost never re-uses the same names or id numbers, a large timeout is recommended. The default is 1 minute.
-usermax max_cache_size
Overrides the default upper bound on the cache size. The larger the cache, the more kernel memory is used, but the better the perfor-
mance. If your system can afford the memory use, make this the sum of the number of entries in your group and password databases.
The default is 200 entries.
-verbose
When set, the server logs a bunch of information to syslog.
-force This flag option must be set to restart the daemon after it has gone away abnormally and refuses to start, because it thinks nfsuserd
is already running.
num_servers
Specifies how many servers to create (max 20). The default of 4 may be sufficient. You should run enough servers, so that ps(1)
shows almost no running time for one or two of the slaves after the system has been running for a long period. Running too few will
have a major performance impact, whereas running too many will only tie up some resources, such as a process table entry and swap
space.
SEE ALSO
getgrent(3), getpwent(3), nfsv4(4), group(5), passwd(5), nfsd(8)
HISTORY
The nfsuserd utility was introduced with the NFSv4 experimental subsystem in 2009.
BUGS
The nfsuserd use getgrent(3) and getpwent(3) library calls to resolve requests and will hang if the servers handling those requests fail and
the library functions don't return. See group(5) and passwd(5) for more information on how the databases are accessed.
BSD
April 25, 2009 BSD