Ubuntu Servers :: Will Opening Port 80 Affect All Computers On A Network
Oct 11, 2010I'm thinking about making a web server but, I have an issue:will opening Port 80 affect all computers on a network?
View 1 Replies
ADVERTISEMENT
Ubuntu Servers :: Provide Internet Access To Multiple Computers Using Only A Hub And 1 Ethernet Port
Mar 18, 2010Ever need to provide access to multiple PC's and did not have a router only a hub. Maybe this isn't original thinking, but then again maybe you didn't think of doing it this way (which i am sure there are many ways to do it) So I have 2 Ubuntu Servers, 1 Windows Box and a Hub - All 3 with internet access off of single ip and single Ethernet port.
While searching for a backup method today I came across Clonezilla. I was wondering if this was the right thing for me and since I needed to backup my roommates PC for a reformat and install of Windows I decided I would give it a try, but only if it would work. I didn't want the hassle of going into the main part of the house and finding out what cord was what as there is a cable modem connected into a switch (4 static IP's with internet) and one port of the switch hooked to a router) Anyways, didn't work he was on the router I was on the switch)
But this got me thinking. When I setup my server to do this, during one of the setup scripts it said it was setting up Internet access for client machines and that it was assigning them IP addresses threw a DHCP server that it had installed.
So, I dug up the hub connected the internet cable to hub up link and Server 1 on port 1 Server 2 on port 2 and Windows on port 3 The main server gets the internet provided IP address and routes it to the hub via a virtual interface. Server 2 is configured for DHCP and the windows box, It was set to get info automatically but it didn't fill the DNS info so I had to manually do that (just a heads up) I decided to use OpenDNS Servers (208.67.222.222 & 208.67.220.220) but im sure putting in the gateway IP address would have worked too.
So, by now if you need this I am sure you are excited and want to get to it. Like i said there are probably other ways of doing it, ways that don't involve you installing clonezilla and DRBL, maybe even just DRBL is needed, maybe one of them installed whats needed as a dependency- all I know is it works, if you know - elaborate so people know, but hey- this way not only do you have internet access on all PC's you can deploy custom images to them as well.
Ubuntu Servers :: Setup An Office Network Consisting Of Three Computers?
Sep 16, 2010I am wanting to setup an office network consisting of three computers and one server. We already have the equipment ready with Vista Business pre-installed on the computers. I want to be able to create a network which allows users to use any machine as this will reduce downtime should a machine break. Also I would like user's files to be held centrally on the server which makes backups easier.
The most important element here is data backup. As like most businesses we are moving away from paper and using the computers to store important records such as customer information. If this data were to be lost, the business would come to a complete halt.
I have been looking at the idea of installing a Microsoft Small Business Server as it would be nice to have centralised control of the machines. However the cost would be over 800 which can not be justified for three machines and five users. Therefore I am turning to Linux for a alternative solution. I have previously used CentOS and Ubuntu for home use but never really gained much knowledge or experience of either.
It is my understanding that Samba can act as a Primary Domain Controller, which if I'm not mistaken is where it handles the network logins and profiles. Is this correct? I have come across many samba tutorials online but whats confusing is they are all different. Some of the tutorials involve using Kerberos and OpenLDAP. Do I need to learn about either of these? What do they do and what benefit will they bring?
Finally, I see Samba 4 is in development and is likely to bring a lot of new features which aren't available in Samba 3. Is this worth waiting for because I don't want to be upgrading everything again 6 months down the road?
OpenSUSE Network :: Connecting Two Computers On LAN \ Both Computers Are Connected To A Switch With Cables?
Jan 31, 2011im trying to connect two computers on lan.One computer has: VMWare Workstation and has Opensuse 11.3 mounted in it.The other computer has: VMWare Player and has Opensuse 11.3 mounted in it.Both computers are connected to a switch with cables.I have followed this guide in both computers:Depanati singuri calculatorul!: Opensuse 11.3 - configure local networkin order to setup a network.In one computer, if i go to: Computer---Network---Network folder, i only see one machine. When in fact i could see both of them right
View 9 Replies View RelatedUbuntu Servers :: Cannot Connect To Local Network After Changing Port
Mar 4, 2011I changed the default port under etc/apache2/ports.conf and now I cannot connect to my server under my local network.
View 9 Replies View RelatedUbuntu Networking :: How To Determine Which Port Needs Opening
Aug 2, 2011I am unable to open my webmail on my small business computers (all ubuntu 10.04 LTS using a Billion router) but am able to access it from my home computers (also ubuntu 10.04 LTS but with a different router).
The most likely problem is obviously that the firewall in the router is blocking access. I know how to open ports in the router's firewall, but how do I determine which port or ports need to be opened?
I have asked my email provider, and that have replied that the port can vary and I need to get my technical support people to do it. Obviously they struggle to understand the concept of 'small business"!
Slackware :: Opening A Port For A Server?
Jan 28, 2011I am trying to run a minecraft server from my slackware machine, but i am having an issue.The port for minecraft (25565) is open on my router, but it is reported as closed by all the open port check tools. I noticed that the same was happening for my VNC server. the port reports itself as closed until i actually open the vnc server software. for examplei check the vnc port (5900) when the vnc software is not running, and it is reported as closed. nmap localhost gives the following:
Code:
Not shown: 993 closed ports
PORT STATE SERVICE
[code]....
General :: Home Server - Configure Fedora 15 To Allow Access Via Port 80 From Other Computers
Aug 6, 2011I am trying to make my home server accessible to the whole web. I have installed Nginx on my Fedora 15 64-bit Linux machine, and it works with localhost but it doesn't work online or allow other computers on the network to access it via the IP address. It keeps coming back with: Could not connect
I have port forwarding. I have even tried different ports but they all seem to be blocked. What could be wrong? I have a netgear router.
Security :: Iptables Not Opening Port On Centos?
Dec 24, 2010I'm trying to open port 119. I already have a few ports open. I've used webmin to open both incoming and outgoing ports. iptables --list --numeric gives me:
Code:
...
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:10000
[code]....
Programming :: Opening A Serial Port From Interrupt?
Aug 17, 2010I'm trying to open ttySx from an interrupt.the kernel crashes. is it possible to open/write to serial port from interrupts ? I think it crushes because when I try to open the device there is a mutex lock which cause the kernel to crash , am I right
View 2 Replies View RelatedUbuntu Security :: Unable To Install Amanda On Any Computers Or Server And The Port Is Not Forwarded By Modem Or Router?
Nov 17, 2010I did a port scan on my server from outside my network and saw that port 10080 AMANDA is open.Amanda isn't installed on any of my computers or my server and the port is not forwarded by my modem or router. So why is this port open and how can I close it?
View 6 Replies View RelatedUbuntu Networking :: Port Not Opening On Wired Connection, Fine On Wireless?
May 30, 2011I'm fairly sure that this is an Ubuntu issue, as I've tried this on my windows computer with success.I'm running a minecraft server on my laptop, previously over a wireless connection but the data rates were too slow. On a wired connection, however, the server starts up and runs like normal but the port is not open when accessing from the network's public IP. I tested this with canyouseeme(.)org. I can get to it from other computers within the network by using a local IP, which to me seems a little strange as it seems to indicate that the port is open on the PC but somewhere in the router it gets confused due to being wired(?). Obviously I've forwarded the ports on the router (BTHomehub 2.0) with both TCP and UCP (it worked over wireless!). Any suggestions as to what might be causing this? I'm stumped.
View 5 Replies View RelatedGeneral :: Opening A Port In Squid Proxy (centos)?
Jun 6, 2011i have a proxy server up and running but one server using port 8181 cannot be accessed.how i can open that port!...i tried adding it in the safe ports but it still isn't working...
View 1 Replies View RelatedServer :: Mysql In Redhat Two Machine Cluster Not Opening 3306 Port?
Jul 18, 2011Im having a frustrating issue with my two machine cluster I setup using Conga. Everything was working great except now when lucci starts mysql the port (3306) is never opened to outside machines. I can do a "ps -ef | grep mysql" and see it running as well as login to mysql on the node it is running on - but an nmap of the machine does not show the 3306 port and I cannot login to mysql remotely and yes I turned off all iptables(iptables,ip6tables) and SElinux is disabled.What am I missing here? If I start mysql on my own (and it is using the same my.cnf as lucci is) it does show the port open and works perfect,t for some reason when lucci starts it, no dice
View 1 Replies View RelatedCentOS 5 Networking :: Iptables Not Opening Port To Connect Via Vnc To A Server Running 5.5?
Apr 27, 2011I'm trying to open up some ports to connect via vnc to a server running Centos 5.5. I've edited /etc/sysconfig/iptables everything *looks* fine, but I still can't seem to get access to the port I've opened (I added some newlines for clarity between commands):
[Code]....
General :: SFTP Server Port Blocked On Uni Network / Need To Change Listening Port
Oct 21, 2010VERY new to linux, erm but I have an issue that needs solving!I recently moved to university, where their network blocks sftp port 22, this means that I cannot connect to my FTP server which is running a version of linux.Now I've got this ftp server connected to a seedbox and it was created using the following walk through..Code:I have written this guide for a friend, but I though it would be useful for others as well.
There are several guides floating around, but I found that most always cock up in some way. This one is tried and tested to work on Debian Etch (on an OVH rps, but should apply to most servers).If there is a new stable release of rtorrent/libtorrent then I will update this guide to show you how to update it (without reinstalling the whole server).
At the bottom there are also instructions to install ftp access & some network monitoring software.Basically, I would really like someone to be able to construct the commands on how to change the listen port for sftp connection on linux or add another port to the list that Linux would use so that I could put in through putty.
OpenSUSE Network :: Port Redirection - Multiple IP Addresses - Or Run On Port 80
Apr 7, 2011In SuSE firewall0. I do have a openSuse 11.4 and multiple IP addresses on eth0 interface
I run (trying to/have to) multiple TOMCAT servers.
I am trying to have each tomcat instance listen to on separate IP address for example:
What i am trying to do is to redirect
a) tomcat 1 -
a) tomcat 2 -
And so on.
I know that it has to be possible.
I do have just eth0/
Is is it possible. Do I have to create "vittual interfaces"? eth0:1, .......... and do redirection ?
"Server" has got just single interface - just 1 ethernet calbe goes to that server. I am planning to have 10-15 tomcat's on that server (I have to unfortunatley) and each has to run on port 80
Is it possible to "grant" permissions to normal users to run app on port 80 - that would solve me lots of problems if impossible to redirect.
I tried to setcap 'cap_net_bind_service=+ep' /path/to/tomcat ...... but no luck
Ubuntu Servers :: Using 2 Computers To Host 1 Website?
Dec 23, 2010how do i use 2 computers to host 1 website? i have one of them running fine, and i just got the other one to use as well. one of them is completely configured without any problems(I have been hosing a website for about 2 strait years with it).also, I have a dynamic IP because the idiot ISP's wont give me a static. I am using Dyn DNS.
View 5 Replies View RelatedUbuntu :: Getting External Ip Of Other Computers On Network?
Aug 8, 2010if there is a way to determine the external ip of other computers on a network. For example, if someone is sending malicious emails and you identify the ip that sent the email by looking at the original, is there a way from the terminal to figure out which computer on your network it was?
View 3 Replies View RelatedUbuntu :: 11.04 Can't Find NAS And Computers On Network
Apr 30, 2011I just replace my Ubuntu 10.10 with the last one 11.04. I have a NAS and other windows computer that I used to share files with, but with the new Unity interface I don't know how to do it.
View 1 Replies View RelatedUbuntu Servers :: Differentiate Between Connections From Windows And Computers
May 21, 2010I have a question about connections with an ubuntu server. Is there a way to know if the terminal computer (which is connected to my linux server) is using WinSCP to connect (on a Windows platform) or a linux system? It seems they are using the same port (22) and I think the exact same protocol (SSH / SFTP), is there a way to differentiate between the two though? And going farther there, is it possible to limit the connections only to linux terminal computers and reject requests coming from Windows computers?
View 2 Replies View RelatedUbuntu Servers :: Cannot Get IP Changed For Home Shared Computers
Sep 27, 2010Im wondering about proxy servers, see it is like this: I got banned from a samp server and i can't get my ip changed (it's not the local address it's the one all the computers in my house shares) I searched a little bit and discovered that a proxy server would be the best option. If I have it in some one else house I will get another ip right? Is it possible to install some software on my laptop and just use that? and how do I do that? Btw I found this: [URL]. But I didn't understand so much of it.
View 4 Replies View RelatedUbuntu Servers :: 10.04 Won't Allow Client Computers To Connect To The Internet
Jan 23, 2011This is my first attempt at a server, and I running Ubuntu 10.04 server. I had to reconfigure my network, so now I am attempting to use it as a server. I have a Linksys WRT54G2 connecting various machines-- Windows XP, Ubuntu builds, and LinuxMint 10 Julia.
The long and the short of it is that the server connects to the Internet-- I can get updates and install programs via terminal. The server also connects to the router, as tested by pings. The client computers all ping back and forth nicely, and I can access the file share via FTP from the local side and externally (this is part of a larger network).
How can I get it so that my client computers can access the Internet through the router and server?
Ubuntu Networking :: Connecting To Other Computers On Network?
Oct 2, 2010When I try to use Nautilus to connect to another computer on my network, and I attempt to connect using the name of the Windows XP computer I am connecting to, I get the following error; Could not display "smb://computername/". Error: Failed to retrieve share list from server Please select another viewer and try again. However when I attempt to connect using the IP address on the network, it connects instantly. smb://192.168.1.101/ Why doesn't it connect using the computer's name? What am I doing wrong?
View 3 Replies View RelatedUbuntu Networking :: App To View Computers On Network?
Nov 22, 2010Does anyone know of an app that I can use to view all the computers connected to my network and the IP addresses to those computers?
View 8 Replies View RelatedUbuntu :: How To View In Terminal Computers On Network And Their Ip's
Jun 5, 2011in windows you do i think ipconfig and it shows all computers on the network and their ip's including yours , how to do that in ubuntu ? well i just want to see other computers and their ip's including their names ( in windows for names you use net view)
View 2 Replies View RelatedUbuntu Servers :: LDAP - Centralized Log On Scheme Setup With 10 Computers
Aug 16, 2010I'm trying to set up a centralized log-on scheme in a research lab with about 10 computers. It's looking like we're going with LDAP - this decision may be out of my control (but if there's an alternative that would be REALLY better, do let me know). My question is we don't really have a domain name, so when all the tutorials say cn=example,cn=com, I can't mimic this exactly. I've been trying to get away with just one, like cn=researchlab. Will LDAP work with just one, or do I need to invent a second also? On the flipside, will it work with more? Our server can be reached by
lab.department.school.edu, could I do cn=lab,cn=department,cn=school,cn=edu?
Ubuntu Servers :: Apache Server Not Accesible From External Computers
Dec 8, 2010A week ago I purchased an VPS. The first few days I was having trouble to set up an outgoing connection on the VPS. Eventually it turned out to be some misconfiguration of the server where the VPS is hosted on.Since then I have installed the apache server, but I'm still not able to access the apache server from an external computer. I already have contacted the provider, but they haven't replied yet. To speed things up I was hoping someone could check my configuration to be sure nothing is wrong with it.To be sure I posted all configuration and information that I think would be important. Please contact me if you need more information.
View 2 Replies View RelatedUbuntu Servers :: Access Restricted To Select Computers Not Users
Apr 21, 2011I want to configure a remote internet facing server as git server. I would like to restrict access to the server to a few systems (access is restricted to select computers, not users). I first thought of using ssh key, but the key can be copied to another system hence that alone is not sufficient. I am having a dynamic IP, so simple IP based firewall blocking is also not possible. I was thinking about the possibility of using both SSH Key and IP based access. Is it possible to update the firewall rule whenever my ip gets changed?
View 6 Replies View RelatedUbuntu Networking :: 10.04 Beta Can't Computers On Home Network
Apr 16, 2010Just installed 10.04 LTS beta on 3 computers in home. At first, two of them showed up under the network window using places. The third never did and would not find the shared printer. After all rebooted, none show up. All three can access the internet and can display a valid internal network ip address using ifconfig.
View 1 Replies View Related