9.10.5. Configuring System Control Settings

Procedure 9.8. To Configure the sysctl Settings:

1. Open the /etc/sysctl.conf file and append the following line to increase kernel semaphores to accommodate more httpds:

   kernel.sem = 250  32000 32  4096

2. Append the following line to the same file to increase the ephemeral port range to accommodate application proxies:

   net.ipv4.ip_local_port_range = 15000 35530

3. Append the following line to the same file to increase the connection-tracking table size:

   net.netfilter.nf_conntrack_max = 1048576

4. Append the following line to the same file to enable forwarding for the port proxy:

   net.ipv4.ip_forward = 1

5. Append the following line to the same file to allow the port proxy to route using loopback addresses:

   net.ipv4.conf.all.route_localnet = 1

6. Run the following command to reload the sysctl.conf file and activate the new settings:

   # sysctl -p /etc/sysctl.conf