<118>oid 'kern.ipc.maxsockets' is read only的解决方法

只需要加到/boot/loader.conf中即可
# — sysinstall generated deltas — #
userconfig_script_load="YES"
autoboot_delay="2"
hw.ata.atapi_dma=1
kern.ipc.maxsockets="32768"
net.inet.tcp.tcbhashsize="2048"