LAN in WinXP

Hi,this is not exatly a security question but i hope you can answer anyway...i'm trying to set up a simple LAN between 2 PC both using WinXP Professional, and i used the automatic configuration.
The shared internet connection works,and on the "server" i can access the shared files of the "client"...but i can't access the shared files on the "Server" from the "client"!
I see the computer in the network resources,but if i try to open it Windows says i dont't have authorization...but the shared folders are not protected!
I dont't know what to do, if someone can help me i thank him very much!

P.S: The firewall on the "Server" is configured to accept connection from the "Client" IP

On the computer whose files you can't access:
Navigate to the files you want shared, right click on the file > properties > click on the tab labeled security> make sure that permissions are correct for the users you want to allow access to the files.

i removed all user permission and i gave all permissions to "everyone", just to make sure i can access the files, but nothing is changed!
I simply can't access to the computer in "Network Resources" from the other...

You said both computers are running XP, how are you distinguishing between client and server?
What firewall?
Both computers formatted NTFS?
Are you members of a domain?

I consider "Server" the PC that have the Internet connection...with the automatic net configuration i checked "The Computer is directly connected to Internet ecc.". The "client" is the other PC.
They are not really a server and a client,i called them this way to make things easier :D

I'm using Outpost Firewall and both PCs are NTFS.
I'm not member of any domain,i'm using a workgroup.

try completly disabling all firewalls to elliminate that as a possibility.

Are you connecting with a cross over cable?

You said internet connection is working on both computers?

Have you tried rebooting both machines?
* This seems to be a mysterious solution to alot of things.

Yes i'm using a cross cable and i reeboted several times...i have redone the net configuration too...

As I said in the first post, the internet connection is correctly working on both PCs, and i can access the shared files of the client.

I tried to disable the firewall too...

wait the question of the cross over cable made me think...what are the consequences for not using it?

Quote:

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Originally posted here by Kyle_The ****3r
wait the question of the cross over cable made me think...what are the consequences for not using it?

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Uhhmmm...not good. Each cable and ethernet interface has several separate pins inside of it (in the cable, these pins terminate the wires) Specific pins are used for sending data, and others for receiving. If you wire to a router, you use straight-through cabling. If you wire card to card, you have to use crossover to get the correct pins to match up at the interface. Consequences of not using the correct wiring? I'm not sure, but it would definitely not work at all and might bork your cards.

You've checked the permissions for the files you want to share, how about the permissions for the folders those files are in? Make sure they are shared and that permissions are set for the users you want access for.

Somewhere in the Properties of tcp/ip protocol (in properties of the network connection)
In the advanced propeties has 3 option
enable netbios
default (or something like that i dont remeber) netbios
and disable netbios

by default its turned on default (the second of the 3 choices)
try to turn it into Enable Netbios
this could fix the problem
give it a try

Also make sure on the "client" that the actual login to the machine is passworded. Although ICS and a peer to peer workgroup are independent of each other.

I am having the same problem I have a thread open in Microsoft Issues. I am having the problems on an XP machine trying be authenticated by a 2000 server. So I am looking at alll possibilities yet nothing seems to be working right now.

- MilitantEidolon

alright, enough of the n00b wizard auto config bullshit....

pc1 has 2 nics 1 connected to your firewall which is connected to the internet
pc2 has 1 nic and is connected to pc1 via a crossover cable

pc1 has a user-defined static IP address of 192.168.1.100 on nic and 192168.2.100 on nic2
pc2 has a user-defined static IP address of 192.168.2.101

pc2 will have the following information specified in the TCP/IP config:
IP: 192.168.2.101
net mask: 255.255.255.0
gateway: 192.168.1.100

dns (if you are having it connect to the internet): [ip addresses of your dns servers from your isp]

now... if you want pc2 to be able to connect to the internet, then you will goto pc1, highlight both connections under "network connections", right click and select bridge connections

First off the consequence of not using a cross over cable is your connection will not work at all. thats it. since you have net access and can get files from the client computer then that measn your hardware is fine, config is wrong. Chances are if it is giving you an access denied message then your security settings are wrong, not the specific file ones but the computer itself. start from scrath and re set up all settings not just review, when you review things most people assume they are correct and overlook simple mistakes, by re creating all settings you are forced to double check everything. or say screw it all to hell, buy a cheap router and call it a day.

Quote:

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Originally posted here by djscribble
alright, enough of the n00b wizard auto config bullshit....

pc1 has 2 nics 1 connected to your firewall which is connected to the internet
pc2 has 1 nic and is connected to pc1 via a crossover cable

pc1 has a user-defined static IP address of 192.168.1.100 on nic and 192168.2.100 on nic2
pc2 has a user-defined static IP address of 192.168.2.101

pc2 will have the following information specified in the TCP/IP config:
IP: 192.168.2.101
net mask: 255.255.255.0
gateway: 192.168.1.100

dns (if you are having it connect to the internet): [ip addresses of your dns servers from your isp]

now... if you want pc2 to be able to connect to the internet, then you will goto pc1, highlight both connections under "network connections", right click and select bridge connections

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thanks for the tips but...i have a SOFTWARE firewall,not an hardware one,then pc1 has only 1 nic connected to pc2. Howewer i suppose the tasks are the same,only that pc1 has only 192.168.1.100 and i don't have to make the bridge right?

If PC1 has only 1 nic and it's connected to PC2 then how do you connect to the internet with PC1? USB? The PC with the internet connection must have 2 connection that must be bridged.

well the pc1 has a simple ADSL USB Modem, do i have to make a bridge between the LAN and the ADSL?

open windows explorer, go to folder options, view, last option is 'use simple file sharing, deselect this option and apply to all folders.

USB will be a virtual sort of NIC, so yes bridge em.

ok i'll try to restart from scratch and make a manual configuration...thank you all!

Try a simple thing go out by a simple 4 port switch, hook one RJ45 from each Network Card into the switch the LAN part your ADSL, Cable hooks to that line. Look at the properties of your connect you can always use winipconfig /all after using run then CMD or winipconfig /? to find all the switches. If your ISP assigned an ID to your computer (Computer Name blahbalh-a) name the other the same name but change the last letter or number to the next higest A for computer 1 B for computer 2 or 1 for one 2 for 2.
If it is dial up use the Internet Connetion Sharing Wizard (like Bills Gate$ is Cool) It will ask you in their sucking M$ way which machine will access or act as the gateway then ask you to insert disks into A: to make the client for the second computer. More or less that is as simple as I will put it it is a no brainer I forgot the dial up back in the ISDN days :)