I was looking with lsof
to see where the Calendar app
is storing the calendar entries in a file (to see, if I could add/delete entries with an editor vim
for example). While this, I saw that the app is connecting with HTTPS other servers, here is what tcpdump
shows:
13:05:34.394846 IP 192.168.178.49.51588 > 54.191.117.31.443: Flags [S], seq 2261128297, win 64240, options [mss 1460,sackOK,TS val 3907572838 ecr 0,nop,wscale 7], length 0
13:05:34.611600 IP 54.191.117.31.443 > 192.168.178.49.51588: Flags [S.], seq 3946294893, ack 2261128298, win 26847, options [mss 1452,sackOK,TS val 2468437968 ecr 3907572838,nop,wscale 8], length 0
13:05:34.611736 IP 192.168.178.49.51588 > 54.191.117.31.443: Flags [.], ack 1, win 502, options [nop,nop,TS val 3907573054 ecr 2468437968], length 0
13:05:34.614101 IP 192.168.178.49.51588 > 54.191.117.31.443: Flags [P.], seq 1:518, ack 1, win 502, options [nop,nop,TS val 3907573057 ecr 2468437968], length 517
13:05:34.857371 IP 54.191.117.31.443 > 192.168.178.49.51588: Flags [.], ack 518, win 117, options [nop,nop,TS val 2468438259 ecr 3907573057], length 0
$ host 54.191.117.31
31.117.191.54.in-addr.arpa domain name pointer ec2-54-191-117-31.us-west-2.compute.amazonaws.com.
Why is the app doing this? And where is this to be configured to avoid it?