Do you have an proper DNS infrastructure in place? If not, that's your problem. With each connection, the SSH daemon will try and do an reverse lookup of your IP, and check if it matches the sent hostname. A reverse lookup without an appropriate record consumes time. Change/Add the directive
Hi,
I am using a remote storage service for backing up our data - we want to have a script run as part of a cron job which would do the backups from our local Linux machine to the service's Linux machine.
I want to use tar and ssh to do this (rather than mounting the disk and using cp) .... (5 Replies)
Hi
i have aix 5.3 operating system, and i am trying to do ssh without passwd, when i tried to create a rsakey, it produces empty file as an output, how can solve that problem? why it is giving empty output file, i tried with different user, situation same,.i have restarted sshd server. .ssh... (2 Replies)
hi
I have a script to login from a host "A" to a list of hosts in a file and perform some commands inside it...its somethin like this
for i in `cat file`
do
ssh -t $i " command1 ; command2; ..."
done
I wanna save the outputs in a file in the current host "A" i.e from where I am... (3 Replies)
Hi im trying to write a script to logon to list of servers with same userID. I have no option/plan to implement ssh-keygen sharing between the systems, so i have written script creating 2 files,
file1 holds list of hosts
host1
host2
host3
file2 has following script
for i in `cat file1`... (1 Reply)
Hi Experts ,
we have a CDC file where we need to get the latest record of the Key columns
Key Columns will be CDC_FLAG and SRC_PMTN_I
and fetch the latest record from the CDC_PRCS_TS
Can we do it with a single awk command.
Please help.... (3 Replies)
Hey guys, I'm trying to make a bash script to do password generation.
The script takes 2 arguments, number of characters and number of passes to generate, but I can't get the loop to work properly.
#!/bin/bash
echo
echo
echo -ne "Password length:"
read pwd_length
echo
echo -ne "Number of... (6 Replies)
I have about 500 hosts where I need to ssh by sending the password on the command line or in a text file in a clear text . However I am not able to download "sshpass" or other tools .
Any other ways to pass the password in a script ? (3 Replies)
Hi guys - I am having a hard time trying to figure how to search for a certain string on config files hosted on multiple hosts.
This is an example:
Hostnames: myhost1.mycompany.com|myhost2.mycompany.com|myhost3.mycompany.com
String to search for: myipaddress.somehost.com
Directory... (9 Replies)
Hello,
I am trying to login to multiple servers and i have to run multiple loops to gather some details..Could you please help me out.
I am specifically facing issues while running for loops.
I have to run multiple for loops in else condition. but the below code is giving errors in for... (2 Replies)
Dear Folks,
I am trying to read a config file contains ip and port numbers.
i want to read each line of the config file and check ssh connection is happening or not.
Kindly guide.
Config file:
abc@1.2.342 22
abc@1.2.343 22
abc@1.2.344 22
abc@1.2.345 22... (9 Replies)
Discussion started by: sadique.manzar
9 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)