[ale] nslookup OK - No ping or access from proxy client

[Chuck Payne]

Make sure you have your IP Range allowed to use Squid, that a common
mistake.

On Sat, Jun 10, 2023 at 9:50 PM Don Thrash via Ale <ale at ale.org> wrote:

> Thank you!! That was a bit of help.  Got me thinking .  Squid access log
> is loaded with:  TCP_DENIED/403.  Now going on a trip down that rabbit hole.
>
> Don Thrash
>
>
> On 6/10/2023 4:23 PM, Boris Borisov via Ale wrote:
>
> The old fashion way.
>
> iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
>
> echo 1 > /proc/sys/net/ipv4/ip_forward
>
>  instead eth0 there is the name of your wifi device
>
> .<bugyatl at gmail.com> wrote:
>
>> When you say proxy server do you mean you running proxy software on it or
>> you just using it as getaway?
>>
>> On Sat, Jun 10, 2023, 20:56 Don Thrash via Ale <ale at ale.org> wrote:
>>
>>> Hi Guys! My name is Don Thrash. I have been using Linux for quite a
>>> while but the head isn't what it used to be. So I am looking for a
>>> little help.  I am setting up a proxy server on the following machine.
>>> I had it working a week ago.  Now I am totally confused.  The issue is
>>> the proxy client does not get routed to the networks (local or
>>> internet). Ping of google.com from the client returns the correct ip
>>> address, but the ping returns timed out.  Typing in the ip returns timed
>>> out.  The client is a Windows 10 box, I also tried my Ubuntu laptop with
>>> the same result.
>>>
>>> Ubuntu 22.04.2 LTS (GNU/Linux 5.19.0-43-generic x86_64)
>>>
>>> wlx002522451a1f - WiFi from house to shed 192.168.1.0
>>>
>>> enp0s25 - Wired shed network - 10.42.0.0
>>>
>>> dont at Shed2:~$ route -n
>>> Kernel IP routing table
>>> Destination     Gateway         Genmask         Flags Metric Ref    Use
>>> Iface
>>> 0.0.0.0         192.168.1.1     0.0.0.0         UG    600 0        0
>>> wlx002522451a1f
>>> 10.42.0.0       0.0.0.0         255.255.255.0   U     100 0        0
>>> enp0s25
>>> 192.168.1.0     0.0.0.0         255.255.255.0   U     600 0        0
>>> wlx002522451a1f
>>>
>>>   sudo iptables -L
>>> [sudo] password for dont:
>>> Chain INPUT (policy ACCEPT)
>>> target     prot opt source               destination
>>>
>>> Chain FORWARD (policy ACCEPT)
>>> target     prot opt source               destination
>>>
>>> Chain OUTPUT (policy ACCEPT)
>>> target     prot opt source               destination
>>>
>>> Network connections from server work correctly.
>>>
>>>   ifconfig
>>> enp0s25: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
>>>          inet 10.42.0.1  netmask 255.255.255.0  broadcast 10.42.0.255
>>>          inet6 fe80::a88e:9d27:e490:8c8d  prefixlen 64  scopeid
>>> 0x20<link>
>>>          ether 00:1e:4f:c7:0a:c0  txqueuelen 1000  (Ethernet)
>>>          RX packets 26627  bytes 2224357 (2.2 MB)
>>>          RX errors 0  dropped 0  overruns 0  frame 0
>>>          TX packets 14280  bytes 9276316 (9.2 MB)
>>>          TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
>>>          device interrupt 21  memory 0xfebe0000-fec00000
>>>
>>> lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
>>>          inet 127.0.0.1  netmask 255.0.0.0
>>>          inet6 ::1  prefixlen 128  scopeid 0x10<host>
>>>          loop  txqueuelen 1000  (Local Loopback)
>>>          RX packets 10037  bytes 912910 (912.9 KB)
>>>          RX errors 0  dropped 0  overruns 0  frame 0
>>>          TX packets 10037  bytes 912910 (912.9 KB)
>>>          TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
>>>
>>> wlx002522451a1f: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
>>>          inet 192.168.1.164  netmask 255.255.255.0  broadcast
>>> 192.168.1.255
>>>          ether 00:25:22:45:1a:1f  txqueuelen 1000  (Ethernet)
>>>          RX packets 235508  bytes 162967763 (162.9 MB)
>>>          RX errors 0  dropped 6  overruns 0  frame 0
>>>          TX packets 183068  bytes 31113448 (31.1 MB)
>>>          TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
>>>
>>>
>>> _______________________________________________
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>>> Ale at ale.org
>>> https://mail.ale.org/mailman/listinfo/ale
>>> See JOBS, ANNOUNCE and SCHOOLS lists at
>>> http://mail.ale.org/mailman/listinfo
>>>
>>
> _______________________________________________
> Ale mailing listAle at ale.orghttps://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists athttp://mail.ale.org/mailman/listinfo
>
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> https://mail.ale.org/mailman/listinfo/ale
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> http://mail.ale.org/mailman/listinfo
>


-- 
Terror PUP a.k.a
Chuck "PUP" Payne
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