What Is The Use Of Port 1328

Hey All,

Is there a way to present a path or other block device to a USB port on a Linux server then have that port connected to a USB port of another device (ie USB to USB) and have it look like a flash disk?

I can plug a USB flash disk to a router just fine. But if I wanted a device to access a path off of another device int he absence of NFS or CIFS capability, that would be handy.

In other words, anyway to assign storage to a USB port in Linux? It would be akin to something like SAN with a target and source just with USB.

Cheers,
DH

Hi,

So, I am learning meteor.js and signed up for a (cheap, i.e no support) VPS to host my Meteor app. Everything is running fine but I am trying to understand better how Linux works so here is my question:

I am running CentOS 7 on the VPS but it still uses iptables for its firewall.

I had to enable port 80 to access the web server. However, if I reboot the server, it stops working until I do
Code:

iptables -F

Then everything works. But I am thinking that -F might not be the best thing. I have changed the default SSH port from 22 to something else and that also works but I don't think I ever added it to the iptables rules.

If I do a port scan, the new SSH port is indicated as open as well as port 80 but others are closed as they are supposed to be.

Any idea what is doing on behind the scenes that requires iptables -F for the web access to work properly and if I shouldn't be doing iptables -F (I have it in the rc.local file), what is the right way of doing it?

(BTW, I am computer literate but not that familiar with Linux, which I am trying to learn now.)


Kamal

Hi All,
We have some shell scripts which will send emails about backup, alerts etc using mail command. Example.
Code:

echo "Test Mail" | mail -s "Test" me@mydomain.com

I guess the above command just connect port number 25 of our mail server even if we do not define any port number. Now I would like add smtp port number as 587 in all of the bash scripts. I googled for this but could not get whatever I am expecting. So expecting your kind reply to define smtp port number as 587 in all of the bash scripts.

Thanks in advance.

Hi all,

I understand that Linux by default will limit its Ephemeral port allocation between 32768 to 61000.

I need to identify the applications running on my box (around 500 of them) which are intentionally using a port which happens to be in Ephemeral port range. Objective is to get a list of those apps and flag it so that the developers get to know of it and change their application port.

When I run netstat -nap to get a list of listen ports, I am unable to figure out if the port in Ephemeral range is actually allocated by OS or one of my apps has done it.


Thanks,
linux_it_is

I will be setting up a few raspberry pi's in various locations, and they will be creating reverse nat ssh tunnels to my ssh server.

I need to set up a monitoring server at the server's location to monitor the raspberry pi's through the ssh server. The monitoring agent that will be installed on the raspberry pi's is communicating with the monitoring server on port 4700.

My question is:

Since I am using reverse nat ssh tunnels to connect on the ssh server, I am guessing that port 4700 will not be opened. If this is true, is there a way to also open port 4700 in that tunnel, so the monitoring server can access the remote agent?

Thanks

SIR

I HAVE RECENTLY INSTALLED CENTOS7 AND CONFIGURED SQUID ON IT . I AM FACING A TYPICAL PROBLEM I AM ABLE TO BROWSE THE NORMAL PAGES BUT WHEN ANY PAGE THAT STARTS WITH HTTPS:\\ IS NOT ALLOWED TO BROWSE.
I HAVE CHECKED MY SQUID.CONF FILE BUT AM UNABLE TO FIND THE PROBLEM.
I HAVE DISABLE SELINEX AND THERE ARE NO RULES IN IPTABLES ALSO.

KINDLY HELP

PASTING MY SQUID.CONF FILE

#
# Recommended minimum configuration:
#

# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
#acl all src all
#acl manager proto cache_object
#acl localhost 127.0.0.1/32
#acl to_localhost dst 127.0.0.0/8 0.0.0.0/32

acl localnet src 191.254.178.0/24 191.254.28.0/24 10.0.43.0/24 10.0.42.0/24
http_access allow localnet
icp_access allow all

acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT

#
# Recommended minimum Access Permission configuration:
#
# Deny requests to certain unsafe ports
http_access deny !Safe_ports

# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports

# Only allow cachemgr access from localhost
#http_access allow localhost manager
http_access allow localnet manager
http_access deny manager

# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost

#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#

# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
#http_access allow localhost

# And finally deny all other access to this proxy
http_access deny all


# Squid normally listens to port 3128
http_port 8899

# Uncomment and adjust the following to add a disk cache directory.
#cache_dir ufs /var/spool/squid 100 16 256

# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid

cache_peer 191.254.178.76 parent 3128 0 no-query no-digest
#icp_access allow all

#
# Add any of your own refresh_pattern entries above these.
#
refresh_pattern ^ftp: 1440 20 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320

On my firewall I have mapped external port 2022 with internal port 22 for my public ip.
But when i do #ssh <my public ip> 2022
It shows error that verification failed.

Hi

We are going to move some servers from one location to another. How to verify whether the cables are connected to the right interface port?

like one server has eth0 active and eth1 is down. now if the tech guys connect the cable on eth1 port then how to know that

Is it /sys/class/net/eth1 and look for carrier or there is a better way ?

thanks in advance

Ok I'm really new at this . Not the old DOS I'm used to. I'm trying to setup my home server using Ubuntu 12.0.4, I've had no success. I have an actual raid sever I'm using. Loaded first HD with Ubuntu 12.0.4, now trying to setup so I can access from anywhere. Remember I'm a newbie so try and keep it simple until I learn Linux. I have my router setup for port forward using 192.168.100 port 21. everything I looked at so far is pretty complicated for a new user. Any help would be great.

My OS is debian7. How can I change my website address xxx.mydomain:8080/XXX to xxx.mydomain/XXX while Apache is running another website at xxx.mydomain