Port no block
Posted: 30 May 2020, 07:38
hello
im try to open / block port by country with this settings
all country:
TCP_IN = 20,25,53,80,443,465,587,993,995,1167,49152:65534,2080,2443,49152:65534
only from IT
CC_ALLOW_PORTS = IT
CC_ALLOW_PORTS_TCP = 21,110,143,2077,2078,2082,2083,2086,2087,2095,2096
deny all CHINA
CC_DENY = CN
deny BR,VN,TH
CC_DENY_PORTS = BR,VN,TH
CC_DENY_PORTS_TCP = 993,995,465,587
seem all works great but today i want to try to remove port 143 to prevent user to access imap on that port and change like CC_ALLOW_PORTS_TCP:
CC_ALLOW_PORTS_TCP = 21,110,2077,2078,2082,2083,2086,2087,2095,2096
but i found that port 143 is always open and i can connect to it but only from IT (test from different IT location) while with online port check tools, not from IT result closed, how can be possible?
thanks
im try to open / block port by country with this settings
all country:
TCP_IN = 20,25,53,80,443,465,587,993,995,1167,49152:65534,2080,2443,49152:65534
only from IT
CC_ALLOW_PORTS = IT
CC_ALLOW_PORTS_TCP = 21,110,143,2077,2078,2082,2083,2086,2087,2095,2096
deny all CHINA
CC_DENY = CN
deny BR,VN,TH
CC_DENY_PORTS = BR,VN,TH
CC_DENY_PORTS_TCP = 993,995,465,587
seem all works great but today i want to try to remove port 143 to prevent user to access imap on that port and change like CC_ALLOW_PORTS_TCP:
CC_ALLOW_PORTS_TCP = 21,110,2077,2078,2082,2083,2086,2087,2095,2096
but i found that port 143 is always open and i can connect to it but only from IT (test from different IT location) while with online port check tools, not from IT result closed, how can be possible?
thanks