Pre-Installation Requirements as Root on CLI

You need to complete some pre-installation tasks before installing the Jive package. These tasks need to be completed by a root user.

The pre-installation tasks outlined in the following steps apply to all supported operating systems.

Note: Clock synchronization using NTP is required. If you are using VMware, see http://kb.vmware.com/kb/1006427.

Obtain the Jive RPM and copy it to each server and application node in your Jive network.
Here's an example using the Linux scp command to copy the package from a computer named "joesbox" to a target system at "targetsystem":
```
scp -v joe@joesbox:/Users/joe/jive.rpm root@targetsystem:/root
```
For more information, see Hardware Requirements and Preparing to Connect to Jive-Hosted Services.
Obtain the pdfswf RPM here:https://static.jiveon.com/docconverter.
As root, modify /etc/security/limits.conf and add the following values. Once you've made the change, log out and back in again as the jive user.
Note: If you are using a non-root user to install Jive, then replace "jive"with that username.
```
jive    soft    nofile  100000
jive    hard    nofile  200000 
```
As root, modify /etc/sysctl.conf and add the following values.
Note: You only need to modify these values if your existing configuration does not meet or exceed them.
```
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
kernel.shmmax = 2147483648
```
Also in /etc/sysctl.conf, increase the vm.max_map_count to fit your implementation. The jive setup tool calculates a minimum required value based on how much memory is available. You may need to use a higher value than recommended depending on usage patterns or overall usage. The line in sysctl.conf should look like this:
```
vm.max_map_count = 500000
```
Run sysctl -p