10-23-2003
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
This is more of a verification rather than a question of technical nature.
This is based on solaris 10 machine
Could we use Virtual hosts (within our hosts file):
123.1.1.10 virtual_host_name
123.1.1.10 host_A
(note: 123.1.1.10 - host_A is also in our DNS server entry)
And... (0 Replies)
Discussion started by: jackola
0 Replies
2. Solaris
Hi all
Is there any reason to have "hosts ldap dns" as line in /etc/nsswitch.conf ? My understanding is that ldap does not contain any host information..(?)
Best regards...Ludwig (1 Reply)
Discussion started by: ludwig
1 Replies
3. Solaris
As i understand, host/nslookup/dig only query DNS server to resolve name to ip.
ping can query both, but it seems if ping is blocked, ping won't return IP.
traceroute can query both, but i am not able to test if traceroute is blocked, What is the result?
Neither ping/traceroute is... (3 Replies)
Discussion started by: honglus
3 Replies
4. IP Networking
Hi all,
I have an entry in my hosts file on a server called tractor as follows:
10.67.34.128 digger-m2m digger
I have a DNS server configured but it doesn't seem to know about digger. When I do an nslookup on tractor for digger i get the following:
new_dns1.oam.uk can't find digger: Non... (0 Replies)
Discussion started by: Donkey25
0 Replies
5. AIX
hi all
just installed the netsec.options.tcpwrapper from expansion pack, which used to be a rpm, for my aix 6.1 test box.
it is so unpredictable. i set up the hosts.deny as suggested for all and allow the sshd for specific ip addresses/hostnames.
the tcpdchk says the hosts allowed and... (0 Replies)
Discussion started by: wf201626
0 Replies
6. IP Networking
Old skool UNIX and Linux geek here, but newbie to the world of DNS and bind. I've recently been tasked with replacing our DNS infrastructure, currently on Windows, with a RHEL based solution. And I assume that means using bind, which I've not used before. Here's my question:
Suppose our company... (3 Replies)
Discussion started by: lupin..the..3rd
3 Replies
7. Proxy Server
Hi there,
I have a VPS and am working on a little side project for myself and friend which is a DNS proxy. Everything was great till recently. My VPS IP has been detected by some botnet or something, and I believe SMURF attacks are occuring. The VPS provider keeps shutting down my VPS... (3 Replies)
Discussion started by: phi0x
3 Replies
8. AIX
Hello,
For what purpose /etc/hosts file is used.I mean how any request coming to a DNS server or a switch would know that which name and ip are configured in /etc/hosts files of a server?
Best regards,
Vishal (3 Replies)
Discussion started by: admin_db
3 Replies
9. AIX
Hello guys,
I am new to AIX .
I have two AIX v5.3 servers running BIND DNS service on them. The plan is to shut down only the DNS service on them, but in order to do that I have to determine which internal hosts are still using the servers to resolve DNS queries.
Can you please advice on... (2 Replies)
Discussion started by: tihomirvs
2 Replies
10. Solaris
Am trying to copy a tar file onto a series of remote hosts and untar it at the destination. Need to do this without having to do multiple ssh.
Actions to perform within a single ssh session via shell script
- copy a file
- untar at destination (remote host)
OS : Linux RHEL6 (3 Replies)
Discussion started by: sankasu
3 Replies
LEARN ABOUT ULTRIX
ruptime
ruptime(1c) ruptime(1c)
Name
ruptime - show host status of local machines
Syntax
ruptime [ options ] [ machinename ]
Description
The command gives a status line like for each machine on the local network. If a machinename is given, the status of only the named
machine is given. These status lines are formed from packets broadcast by each host on the network once a minute.
Machines for which no status report has been received for 5 minutes are shown as being down.
Options
-a Users idle an hour or more are not counted unless this option is specified.
-d Display only those hosts that are considered down.
-l Sort the status list by load average. If more than one sort option is given, uses the last one.
-r Show only hosts that are up and running.
-t Sort the status list by uptime. If more than one sort option is given, uses the last one.
-u Sort the status list by number of users. If more than one sort option is given, uses the last one.
-nn Show only those hosts with nn or more users.
Restrictions
Because the daemon sends its information in broadcast packets it generates a large amount of network traffic. On large networks the extra
traffic may be objectionable. Therefore, the daemon is disabled by default. To make use of the daemon for both the local and remote
hosts, remove the comment symbols (#) from in front of the lines specifying in the file.
If the daemon is not running on a remote machine, the machine may incorrectly appear to be down when you use the command to determine its
status. See the reference page for more information.
If a system has more than 40 users logged in at once, the number of users displayed by the command is incorrect. Users who login to a
machine after that point fail to increment the user count that appears in the output of the command. This is due to the maximum size limit
of an Ethernet packet, which is 1500 bytes, and the fact that the daemon must broadcast its information in a single packet.
Files
/usr/spool/rwho/whod.* Information about other machines
See Also
rwho(1c), rwhod(8c)
ruptime(1c)