11-12-2003
You should also be aware of how your hosts are actually trying to resolve hostnames. Take a look at /etc/nsswitch.conf
Cheers,
Keith
Last edited by kduffin; 11-17-2003 at 10:53 PM..
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 CENTOS
ipa-replica-install
ipa-replica-install(1) IPA Manual Pages ipa-replica-install(1)
NAME
ipa-replica-install - Create an IPA replica
SYNOPSIS
ipa-replica-install [OPTION]... replica_file
DESCRIPTION
Configures a new IPA server that is a replica of the server that generated it. Once it has been created it is an exact copy of the original
IPA server and is an equal master. Changes made to any master are automatically replicated to other masters.
The replica_file is created using the ipa-replica-prepare utility.
If the installation fails you may need to run ipa-server-install --uninstall before running ipa-replica-install again.
The installation will fail if the host you are installing the replica on exists as a host in IPA or an existing replication agreement
exists (for example, from a previously failed installation).
A replica should only be installed on the same or higher version of IPA on the remote system.
OPTIONS
BASIC OPTIONS
--setup-ca
Install and configure a CA on this replica. If a CA is not configured then certificate operations will be forwarded to a master with
a CA installed.
--ip-address=IP_ADDRESS
The IP address of this server. If this address does not match the address the host resolves to and --setup-dns is not selected the
installation will fail. If the server hostname is not resolvable, a record for the hostname and IP_ADDRESS is added to /etc/hosts.
-p DM_PASSWORD, --password=DM_PASSWORD
Directory Manager (existing master) password
-w ADMIN_PASSWORD, --admin-password=ADMIN_PASSWORD
Admin user Kerberos password used for connection check
--mkhomedir
Create home directories for users on their first login
-N, --no-ntp
Do not configure NTP
--no-ui-redirect
Do not automatically redirect to the Web UI.
--ssh-trust-dns
Configure OpenSSH client to trust DNS SSHFP records.
--no-ssh
Do not configure OpenSSH client.
--no-sshd
Do not configure OpenSSH server.
--skip-conncheck
Skip connection check to remote master
-d, --debug
Enable debug logging when more verbose output is needed
-U, --unattended
An unattended installation that will never prompt for user input
CERTIFICATE SYSTEM OPTIONS
--skip-schema-check
Skip check for updated CA DS schema on the remote master
DNS OPTIONS
--setup-dns
Generate a DNS zone if it does not exist already and configure the DNS server. This option requires that you either specify at
least one DNS forwarder through the --forwarder option or use the --no-forwarders option.
--forwarder=IP_ADDRESS
Add a DNS forwarder to the DNS configuration. You can use this option multiple times to specify more forwarders, but at least one
must be provided, unless the --no-forwarders option is specified.
--no-forwarders
Do not add any DNS forwarders. Root DNS servers will be used instead.
--reverse-zone=REVERSE_ZONE
The reverse DNS zone to use
--no-reverse
Do not create new reverse DNS zone. If a reverse DNS zone already exists for the subnet, it will be used.
--no-host-dns
Do not use DNS for hostname lookup during installation
--no-dns-sshfp
Do not automatically create DNS SSHFP records.
EXIT STATUS
0 if the command was successful
1 if an error occurred
3 if the host exists in the IPA server or a replication agreement to the remote master already exists
IPA
May 16 2012 ipa-replica-install(1)