hi gurus,
need to check other than the hosts file, what else i need to change after we have changed the domain name in our company. currently, we are using olddnsname.com and will change it to newdnsname.com. i am not sure where else in solaris i need to take a look.
please advise.
thank... (4 Replies)
Dear Expert,
i have linux box that is running in the windows domain, BUT did not being a member of the domain. as I am not the System Administrator so I have no control on the server in the network, such as modify dns entry , add the linux box in AD and domain record and so on that relevant.
... (2 Replies)
Hello,
I'm using CentOS 5.3, and I connect to a VPN in order to work. The problem is that I'm constantly accessing things on the local network and the remote network. But once I'm connected to the VPN I can't access local addresses by name, I have to use the ip-address.
What I'd like is to... (4 Replies)
Hi everybody,
for revolving local host name of my network, I set up an dns server to solve my problem, but til now, nothing happen when I ping a hostname, but work on IP. Can you help me to correct the configuration. Here is all my settings:
Voici mes fichiers de configuration:
-... (2 Replies)
I'd like to get some opnions on choosing DNS server:
Windows DNS vs Linux BIND comparrsion:
1) managment, easy of use
2) Security
3) features
4) peformance
5) ??
I personally prefer Windows DNS server for management, it supports GUI and command line. But I am not sure about security... (2 Replies)
Hello to all,
May you help saying me how to flush a specific domain in Linux SunOS5
I know the command rndc is to flush DNS cache, but I would like to know:
1- How to do a flush only on specific domain
2- How to see the content of DNS Resolver cache (similar to info given by IPCONFIG... (2 Replies)
I have read many tutorials on bind and i understand the A,MX, CNAME records.
Internally, on a LAN we can install bind and create all these records and we can tell all PC and servers to use this bind as DNS server.that's fine.
On the Internet, when we have purchased a valid domain like... (5 Replies)
I am writing the following script to create the file v_out.txt.
sqlplus -s /nolog << EOF
CONNECT scott/tiger@orcl;
whenever sqlerror exit sql.sqlcode;
set newpage 0;
SET PAGESIZE 0;
SET ECHO OFF;
SET FEEDBACK OFF;
SET HEADING OFF;
SET VERIFY OFF;
SET LINESIZE 100;
set tab off;
set... (7 Replies)
Hello,
Our organization is planning to move one domain from Dreamhost to Hubspot. Lets say, it is gem.xyxyxyxyx.com. Please note, website is not being migrated from one server to another, it is just hosting company.
Here is from our internal DNS master server -
# cat... (6 Replies)
Discussion started by: solaris_1977
6 Replies
LEARN ABOUT SUSE
dhcping
DHCPING(8) General Commands Manual DHCPING(8)NAME
dhcping - send a DHCP request to DHCP server to see if it's up and running
SYNOPSIS
dhcping [-v] [-q] [-i] [-r] -t maxwait -c client-IP-address -s server-IP-address -h client-hardware-address [-g gateway-IP-address]
DESCRIPTION
This command allows the system administrator to check if a remote DHCP server is still functioning.
Options are:
-v Verbose, print some information.
-i Use DHCPINFORM packets.
-r Use DHCPREQUEST packets (default behaviour).
-q Quiet, print nothing on the screen.
-t maxwait
Maximum time to wait for an answer from the server in seconds. Default is 3 seconds.
-c client-IP-address
Request this IP address. Note that this is also the IP address the answer will be sent to.
-s server-IP-address
Send the DHCP packet to this IP address.
-h client-hardware-address
Use this hardware-address in the DHCP request. It can be up to sixteen octets seperated by colons (i.e. 01:02:03:04)
-g gateway-IP-address
Use this IP address for the gateway IP address in the DHCP packet. This option is currently broken.
RETURN VALUES
If everything goes okay, it returns 0. If there went something wrong, it returns 1.
SETUP
This program should be installed setuid root or ran by root only. See SECURITY for more information.
On your DHCP server, add these lines to the dhcpd.conf:
host <your monitoring host FQDN> {
hardware ethernet <your monitor host mac address>;
fixed-address <your monitoring host IP address>;
}
Then try it:
$ dhcping -c your monitoring host IP address
-s your DHCP server IP address
-h your monitor host mac address
It will either respond with "no answer" or "Got answer from: your DHCP server IP address"
The DHCP server logfile will give:
DHCPREQUEST for 192.168.1.1 from 00:20:18:56:29:8f via ed0
DHCPACK on 192.168.1.1 to 00:20:18:56:29:8f via ed0
DHCPRELEASE of 192.168.1.1 from 00:20:18:56:29:8f via ed0 (found)
Running in DHCPINFORM mode with -i:
If you see "DHCPINFORM from 192.168.1.1 via xl0: not authoritative for subnet 192.168.1.0", you should add the authoritative statement to
the subnet, See dhcpd.conf(5) for details.
When running in very verbose mode, dhcping tries to dump all data of the send and received DHCP packets. It will first dump the packet in
hex-format, then decodes the header and finally the options.
HOW IT WORKS
The client either sends a DHCPREQUEST or DHCPINFORM packet to the server and waits for an answer. Then, if a DHCPREQUEST was send, it will
send a DHCPRELEASE back to the server.
SECURITY
This program is installed setuid root as it requires the privileges to bind itself to port 68 (bootpc). Root privileges are dropped as soon
as the program has bound itself to that port.
BUGS
Currently (this may, or may not, change in the future) the ISC DHCP daemon does not write leases with a fixed IP address in the
dhcpd.leases file.
DHCPINFORM packets can only be used on subnets the server is authori- tative for. If the monitoring script runs on a subnet the server
isn't authoritative for, it should use the DHCPREQUEST packets. I also experienced some problems with ISC DHCPD v2 servers, but that is
also in the README of it.
The -V option is still working, but shouldn't be used for debugging of the packets. Better use dhcpdump(8) for that, which is available on
my website. I wanted to remove it, but decided only to do it from the documentation, not from the code. Maybe I'll need it one day for
debugging.
AUTHOR
Edwin Groothuis, edwin@mavetju.org (http://www.mavetju.org)
SEE ALSO dhcpd(8), dhclient(8), dhcpd.conf(5), dhcpdump(8)Januari 27, 2002 Januari 27, 2002 DHCPING(8)