[CS-FSLUG] Networking with Ubuntu or Fedora Core 6 part 3
Hilding Egestål
he7316575 at yahoo.se
Mon Feb 26 15:49:09 CST 2007
smb://192.168.0.2 but after that? I have searched on the big PC for the
folders and found /usr/local/Brother/lpd or cups. Shall I use that
instead of /Brother
Is it possible to have SSH and Samba at the same time?
/Hilding
Tim Young skrev:
> Sometimes I have time to respond, other times I do not. There are many
> times when I have knowledge to help people out, but I do not have time
> to. :( But, today I have a little time and needed the break from what
> I am currently working on. :)
>
> Your printing is relatively easy to do. I am assuming you have samba
> installed (for file sharing) since those are the firewall rules I gave
> you. Samba, by default, shares the printer. So, all you need to do is
> configure it on the other computer. You already have samba and cups
> (port 631) available.
>
> On your computer with the printer on it, make sure that cups is
> enabled. (there is some gui that tells you which services are started
> at boot time. It should be there.)
>
> The URI (what it asks you for when you go to add a printer) should be
> something like:
> smb://192.168.0.2/Brother
> or the ipp thing you had below. Either one should work.
>
> You would install this network printer through the same menu system you
> installed the local one, just on the small PC.
>
> - Tim Young
>
> Hilding wrote:
>
>> Well I must say, You are a real source of knowledge. Now I can see the
>> folders from the big PC with FC6 in the small PC with FC6. So, now I
>> have got step 2: the printer, ssh is installed. I have used
>>
>> ipp://192.168.0.2/printers/Brother
>>
>> for the printer. IPnumber 192.168.0.2 is the big PC, and I would like to
>> sit at the small PC, printing out my documents on the big one. What do
>> You say about this?
>>
>> /Hilding in Gothenburg
>>
>>
>>
>> Tim Young skrev:
>>
>>
>>> Where you change ssh to reliable, you will also need to add:
>>> 137:UDP
>>> 138:UDP
>>> 139:TCP
>>>
>>> There will probably not be a check-mark for these services, but there
>>> should be an "other services" text box where you can type in the above
>>> lines.
>>>
>>> - Tim Young
>>>
>>> Ps. The lines below represent your firewall. What you have are a bunch
>>> of rules which occur in order. They consist of a pattern and an
>>> action. If the network connection matches the pattern, then the action
>>> occurs.
>>>
>>> You have a bunch of "ACCEPT" actions. If the pattern is the printing
>>> protocol (dport 631), then it is accepted and allowed through the
>>> firewall. At the end of the list is a rule which REJECTS all the
>>> packets which had not been allowed beforehand. So if you do not see an
>>> "ACCEPT" rule for something in particular, it gets rejected.
>>>
>>> If you want to see a list of the various things you can accept or
>>> reject, you can find it in /etc/services
>>>
>>>
>>> Hilding wrote:
>>>
>>>
>>>
>>>> Going to System - Security Level: and changing to mark SSH as reliable
>>>> will give You this iptables-save
>>>>
>>>> Generated by iptables-save v1.3.5 on Mon Feb 26 17:26:09 2007
>>>> *filter
>>>> :INPUT ACCEPT [0:0]
>>>> :FORWARD ACCEPT [0:0]
>>>> :OUTPUT ACCEPT [2:320]
>>>> :RH-Firewall-1-INPUT - [0:0]
>>>> -A INPUT -j RH-Firewall-1-INPUT
>>>> -A FORWARD -j RH-Firewall-1-INPUT
>>>> -A RH-Firewall-1-INPUT -i lo -j ACCEPT
>>>> -A RH-Firewall-1-INPUT -p icmp -m icmp --icmp-type any -j ACCEPT
>>>> -A RH-Firewall-1-INPUT -p esp -j ACCEPT
>>>> -A RH-Firewall-1-INPUT -p ah -j ACCEPT
>>>> -A RH-Firewall-1-INPUT -d 224.0.0.251 -p udp -m udp --dport 5353 -j ACCEPT
>>>> -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
>>>> -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT
>>>> -A RH-Firewall-1-INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
>>>> -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j
>>>> ACCEPT
>>>> -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
>>>> COMMIT
>>>> # Completed on Mon Feb 26 17:26:09 2007
>>>>
>>>>
>>>>
>>>> Tim Young skrev:
>>>>
>>>>
>>>>
>>>>
>>>>> Hi there,
>>>>> One of the problems with a network with Linux is that there are a ton of
>>>>> ways to do everything. If all you have is two Linux boxes, then you
>>>>> will want to use NFS file-sharing. If you may sometime use a windows
>>>>> box on your computer, you will want to set up Samba (You may do it
>>>>> instead of NFS. They are not mutually exclusive, they just do the same
>>>>> thing two different ways.)
>>>>>
>>>>> With your problem of things not opening eachother, my first guess is
>>>>> that you have a firewall set up. You can determine if you have a
>>>>> firewall by running:
>>>>> iptables-save
>>>>>
>>>>> If it prints a lot of lines, then you have a firewall. :)
>>>>>
>>>>> You may look at:
>>>>> http://tldp.org/HOWTO/SMB-HOWTO.html
>>>>> This tells you about file and printing.
>>>>>
>>>>> You will probably want to break things up into a few parts:
>>>>> Getting the computers to contact eachother via the net.
>>>>> (firewalling, IP addresses, DNS, etc.)
>>>>> Sharing information
>>>>> (Samba, NFS, SSH, etc.)
>>>>>
>>>>> There is a Linux networking howto at tldp.org, but it gets very
>>>>> complex. Since you already have IP addresses, I will assume that you
>>>>> just have a firewall blocking connectivity. You can turn off your
>>>>> firewall a few ways. Fedora uses a program called "lokkit" in the
>>>>> command-line world, but it has some interface in the GUI world. I do
>>>>> not have FC6 so I don't know where it is. If you have a firewall
>>>>> between you and the outside world, for now, just turn off your firewall.
>>>>>
>>>>> For sharing files, you will most likely end up setting up Samba. It is
>>>>> horribly more complex than NFS, but it works in more cases than NFS
>>>>> does. The samba link I gave you up there may be helpful. But since you
>>>>> already set up some shares, most likely, when you have the firewall
>>>>> turned off, things will start working. If not, I can give you a few
>>>>> commands that will tell you quickly where the problem is.
>>>>>
>>>>> Fedora used to allow root SSH by default, so my guess here is that once
>>>>> you have your firewall down, everything will work. If not, ssh is
>>>>> usually very simple. Make sure it is enabled at boot
>>>>> chkconfig sshd on
>>>>> and then make sure it is currently started up
>>>>> service sshd start
>>>>>
>>>>> Then, from the machine you are on, ssh to yourself to see if it works
>>>>> local. If it does, then try it from the other computer. Most all SSH
>>>>> issues, unless you have been playing with the sshd_config file, will be
>>>>> with the firewall or not having your service started.
>>>>>
>>>>> Hope that helps some.
>>>>>
>>>>> - Tim Young
>>>>>
>>>>> HildingE wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> Well, sorry to say I am returning to basic about creating network, this
>>>>>> time with Fedora Core 6. Where can I find an easyread HOWTO installing
>>>>>> network? I am just using network between two LinuxPC. Beside Ubuntu I
>>>>>> have a little bit curios about Fedora Core 6, but it seems more
>>>>>> difficult to get it right.
>>>>>>
>>>>>> Places: connect to server - ssh - the adresses to the two computers,
>>>>>> 192.168.0.2 and 192.168.0.3 I am working as root, but it refuses to
>>>>>> open eachother. I have made shared folders, but without any result.
>>>>>>
>>>>>> Regards in Lent.
>>>>>>
>>>>>> /Hilding in Gothenburg
>>>>>>
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