Sponsored Content
Special Forums IP Networking Help determining what's blocking ports Post 302275643 by lasitha2005d on Sunday 11th of January 2009 06:58:25 PM
Old 01-11-2009
Hi

Definitely your Active Directory computer configurations should be checked. If the group policy prevents or any other systems such as ISA server is placed or any software firewall have been placed , you won't be able to connect to the internet. Start from the gateway and the DNS servers...And especially the internet server or the internet perimeter. May b a router...May be the gateway...Start from the internet gateway. And for campuses there has to be policy for internet usage...Try to scan a web site using nmap and check whether their is a block . It will do tracert too.Scan services also. Use latest version. Start from the smallest thing. The servers always have unique and dedicated IP s. So it will b easy when you have found the ip address assignment.
Smilie I think otheus sounds right.

Last edited by lasitha2005d; 01-11-2009 at 08:06 PM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

determining open ports

hi all 1) how to determine available ports in a box (solaris) do i have to go for a netstat on all the ports? 2) how to block a particular port for a particular type of connection. Any help would be greatly appreciated Thanks (7 Replies)
Discussion started by: matrixmadhan
7 Replies

2. UNIX for Dummies Questions & Answers

Determining file length

How can I determine what UNIX thinks the record size of any given file is?? (1 Reply)
Discussion started by: jbrubaker
1 Replies

3. SCO

Blocking ports and reseting conections

Hi folks! We have SCO Open System V 5.0.5 here. When I type "netstat -n" I found a line mentioning a conection at the port 1025, as follows: tcp 0 0 quartzo.1025 200-203-8-90.csl.aas ESTABLISHED Here we use only conections thru ports 22,23 and 25. I would like to... (0 Replies)
Discussion started by: Marcio Moraes
0 Replies

4. Shell Programming and Scripting

Determining directory path

Hello, I have a script where I get the full directory path of the script being executed: BASE=$0 echo "BASE:" $BASE The output looks like this: BASE: /webapps/appsdev/ACURA/rlz/oses3.sh I'd like to truncate the shell name, leaving just the directory path. The directory path can be... (2 Replies)
Discussion started by: cwalsek
2 Replies

5. Shell Programming and Scripting

Problem determining file

I got the following code, it partially works. Can someone tell me why it partially doenst work? #!/bin/sh file=$1 if then echo "File is a directory" else echo "File is not a directory!" fi heres the output: philip@philip-laptop:~/Desktop$ sh exFive.sh test.java File is... (4 Replies)
Discussion started by: philmetz
4 Replies

6. Solaris

determining miniroot revision

Hi guys I have a bunch of x4100's x4140's etc with solaris 10 update4 running on them but I suspect that when a lot of these boxes were originally built, the jumpstart process used an update2 miniroot, now as far as i understand it, the miniroot used at jumpstart is the miniroot that stays on... (1 Reply)
Discussion started by: hcclnoodles
1 Replies

7. Solaris

Blocking outgoing connection to ports/host in solaris

Hi, I want to block all outgoing connection ( the IMAP ) to my exchnage . I have to do it in my solaris server; from solaris host no outgoing connection can be made to the imap server. Please help me to configure that. I am new in solaris. Kind regards, Akhtar (2 Replies)
Discussion started by: akhtarbd
2 Replies

8. Programming

determining the IP of a function

Is there a way to determine the "Instruction Pointer" of a function in c++, and if so can someone tell me? (5 Replies)
Discussion started by: neur0n
5 Replies

9. UNIX for Dummies Questions & Answers

Determining Disk Speed

Hi, I went to a computer store and the salesman sold me a SATA cable and told me that all SATA cables are the same. Another salesman at a different store told me a cable rated for SATA 2, which I bought, MIGHT work as well as one rate for SATA 3 but it is not guaranteed. I decided to run a... (3 Replies)
Discussion started by: mojoman
3 Replies

10. Programming

Which are blocking and non-blocking api's in sockets in C ?

among the below socket programming api's, please let me know which are blocking and non-blocking. socket accept bind listen write read close (2 Replies)
Discussion started by: VSSajjan
2 Replies
protocols(4)							   File Formats 						      protocols(4)

NAME
protocols - protocol name database SYNOPSIS
/etc/inet/protocols /etc/protocols DESCRIPTION
The protocols file is a local source of information regarding the known protocols used in the DARPA Internet. The protocols file can be used in conjunction with or instead of other protocols sources, including the NIS maps ``protcols.byname'' and "protocols.bynumber" and the NIS+ table ``protocols''. Programs use the getprotobyname(3SOCKET) routine to access this information. The protocols file has one line for each protocol. The line has the following format: official-protocol-name protocol-number aliases Items are separated by any number of blanks and/or TAB characters. A `#' indicates the beginning of a comment; characters up to the end of the line are not interpreted by routines which search the file. Protocol names may contain any printable character other than a field delimiter, NEWLINE, or comment character. EXAMPLES
Example 1 A Sample Database The following is a sample database: # # Internet (IP) protocols # ip 0 IP # internet protocol, pseudo protocol number icmp 1 ICMP # internet control message protocol ggp 3 GGP # gateway-gateway protocol tcp 6 TCP # transmission control protocol egp 8 EGP # exterior gateway protocol pup 12 PUP # PARC universal packet protocol udp 17 UDP # user datagram protocol # # Internet (IPv6) extension headers # hopopt 0 HOPOPT # Hop-by-hop options for IPv6 ipv6 41 IPv6 # IPv6 in IP encapsulation ipv6-route 43 IPv6-Route # Routing header for IPv6 ipv6-frag 44 IPv6-Frag # Fragment header for IPv6 esp 50 ESP # Encap Security Payload for IPv6 ah 51 AH # Authentication Header for IPv6 ipv6-icmp 58 IPv6-ICMP # IPv6 internet control message protocol ipv6-nonxt 59 IPv6-NoNxt # No next header extension header for IPv6 ipv6-opts 60 IPv6-Opts # Destination Options for IPv6 FILES
/etc/nsswitch.conf configuration file for name-service switch SEE ALSO
getprotobyname(3SOCKET), nsswitch.conf(4) NOTES
/etc/inet/protocols is the official SVR4 name of the protocols file. The symbolic link /etc/protocols exists for BSD compatibility. SunOS 5.11 13 Jun 2002 protocols(4)
All times are GMT -4. The time now is 08:55 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy