Closed ports Post: 302096612

5 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Are ports above 1024 closed by default ?

Hi guys, Just needed to know if all the ports above 1024 are closed by default. I know that below 1024 the ports are reserved for the kernel and ports above 1024 are reserved for user applications. But by default, if I do not have a rule in my firewall to block ports above 1024, Will my...

2. UNIX for Dummies Questions & Answers

ssh_exchange_identification: Connection closed by remote host Connection closed

Hi Everyone, Good day. Scenario: 2 unix servers -- A (SunOS) and B (AIX) I have an ftp script to sftp 30 files from A to B which happen almost instantaneously i.e 30 sftp's happen at the same time. Some of these sftp's fail with the following error: ssh_exchange_identification: Connection...

3. Post Here to Contact Site Administrators and Moderators

my thread got closed

I had a thread open and now it says it's closed. I had a question still on the forum and about 15mins after I posted my most recent question on it the thread said "closed". Why did this happen? I didn't violate any forum rules. Is there a limit on how many postings you can have in a single thread?...

4. Solaris

SYN_SENT does not receive reset from closed ports

Dear all, I have a Solaris 10 system with a bunch of zones on it. My issue is the following: - I have application A and B running in the same zone: i.e. they communicate via loopback interface. Application A tries to connect to application B, usually listening on port X. If application B...

5. IP Networking

Debian ports reporting closed. Refused connection

Hey guys, I'm having trouble with checking what ports are open on my Debian distro, which is reporting all ports closed, though they are clearly open I am checking to see if ports are open with netcat: nc 127.0.0.1 80 localhost 80 (http) : Connection refusedAs an example but on all ports...

LEARN ABOUT CENTOS

sepolicy-network

sepolicy-network(8)													       sepolicy-network(8)

NAME

       sepolicy-network - Examine the SELinux Policy and generate a network report

SYNOPSIS

       sepolicy network [-h] (-l | -a application [application ...] | -p PORT [PORT ...] | -t TYPE [TYPE ...] | -d DOMAIN [DOMAIN ...])

DESCRIPTION

       Use sepolicy network to examine SELinux Policy and generate network reports.

OPTIONS

       -a, --application
	      Generate a report listing the ports to which the specified init application is allowed to connect and or bind.

       -d, --domain
	      Generate a report listing the ports to which the specified domain is allowed to connect and or bind.

       -l, --list
	      List all Network Port Types defined in SELinux Policy

       -h, --help
	      Display help message

       -t, --type
	      Generate a report listing the port numbers associate with the specified SELinux port type.

       -p, --port
	      Generate a report listing the SELinux port types associate with the specified port number.

EXAMPLES

       sepolicy network -p 22
       22: tcp ssh_port_t 22
       22: udp reserved_port_t 1-511
       22: tcp reserved_port_t 1-511

       sepolicy network -a /usr/sbin/sshd
       sshd_t: tcp name_connect
	    111 (portmap_port_t)
	    53 (dns_port_t)
	    88, 750, 4444 (kerberos_port_t)
	    9080 (ocsp_port_t)
	    9180, 9701, 9443-9447 (pki_ca_port_t)
	    32768-61000 (ephemeral_port_t)
	    all ports < 1024 (reserved_port_type)
	    all ports with out defined types (port_t)
       sshd_t: tcp name_bind
	    22 (ssh_port_t)
	    5900-5983, 5985-5999 (vnc_port_t)
	    6000-6020 (xserver_port_t)
	    32768-61000 (ephemeral_port_t)
	    all ports > 500 and  < 1024 (rpc_port_type)
	    all ports with out defined types (port_t)
       sshd_t: udp name_bind
	    32768-61000 (ephemeral_port_t)
	    all ports > 500 and  < 1024 (rpc_port_type)
	    all ports with out defined types (port_t)

AUTHOR

       This man page was written by Daniel Walsh <dwalsh@redhat.com>

SEE ALSO

       sepolicy(8), selinux(8), semanage(8)

								     20121005						       sepolicy-network(8)