最近用一个软件的时候总是弹出更新，遂找了屏蔽更新 ip 的方法。
sudo vim /etc/pf.conf # 编辑配置文件
#
# Default PF configuration file.
#
# This file contains the main ruleset, which gets automatically loaded
# at startup. PF will not be automatically enabled, however. Instead,
# each component which utilizes PF is responsible for enabling and disabling
# PF via -E and -X as documented in pfctl(8). That will ensure that PF
# is disabled only when the last enable reference is released.
#
# Care must be taken to ensure that the main ruleset does not get flushed,
# as the nested anchors rely on the anchor point defined here. In addition,
# to the anchors loaded by this file, some system services would dynamically
# insert anchors into the main ruleset. These anchors will be added only when
# the system service is used and would removed on termination of the service.
#
# See pf.conf(5) for syntax.
#
#
# com.apple anchor point
#
scrub-anchor "com.apple/*"
nat-anchor "com.apple/*"
rdr-anchor "com.apple/*"
rdr-anchor "debookee"
dummynet-anchor "com.apple/*"
anchor "com.apple/*"
anchor "debookee"
load anchor "com.apple" from "/etc/pf.anchors/com.apple"
# 屏蔽ip
block drop from any to xxx.xx.xxx.x (要屏蔽的 ip)
最后使配置生效即可。
sudo pfctl -evf /etc/pf.conf