In my Linux system ephemeral port range is showing different ranges as follows
$ cat /proc/sys/net/ipv4/ip_local_port_range
32768 61000
cat /etc/sysctl.conf | grep net.ipv4.ip_local_port_range
net.ipv4.ip_local_port_range = 9000 65500
Which will be the effective ephemeral port range in my system?
Assuming that you did not just change the value in /etc/sysctl.conf and have not rebooted, the range in /proc/sys/net/ipv4/ip_local_port_range applies.
I set parameters in both way given in question . Moreover my startup script /etc/rc.local is taking care parameters of proc file system . So after I reboot what will be the effective range?
Should be the values in /etc/sysctl.conf
sysctl -A | grep net.ipv4.ip_local_port_range
will give effective port range at any moment.
After reboot if we execute sysctl -p /etc/sysctl.conf system update kernel parameter net.ipv4.ip_local_port_range from /etc/sysctrl.conf file
Simpler to just use
cat /proc/sys/net/ipv4/ip_local_port_range
Unless you have modified the contents of /etc/sysctl.conf, this command should be unnecessary as the reboot causes /etc/sysctl.conf to be read. Also the default file is /etc/sysctl.conf, so sufficient to use
sysctl -p