topic Re: Save log from putty in Spark Firewall (SMB)

Save log from putty

hezi_angel — Fri, 29 Mar 2019 11:49:39 GMT

I have 750 applications checkpoint

And go to the cli from putty

I won't to run tcpdump and save the file on my local pc

Like:

Tcpdump c:\checkpoint

How i can save it?

Re: Save log from putty

PhoneBoy — Fri, 29 Mar 2019 13:29:08 GMT

When you run tcpdump on a 750 (or any appliance), if you specify an output file, it is stored on that appliance.
If you want that output file transferred to your PC, you will have to transfer that output file as a separate step using something other than putty (e.g. WinSCP).
Keep in mind the storage space on a 750 is relatively small, which means you won't be able to do a long-term capture.

Re: Save log from putty

hezi_angel — Fri, 29 Mar 2019 13:36:42 GMT

Thanks

So if i won't to wireshark the trafic

I can't do this with 750?

Re: Save log from putty

PhoneBoy — Fri, 29 Mar 2019 15:47:50 GMT

Packet captures require storage space, which the 750 does not have a lot of. For anything more than a few minutes, you will probably need to have a MicroSD card installed to write the packet captures to.

A command line like:

tcpdump -i LAN1 -w /mnt/sd/capture.pcap

would write the pcap file to the MicroSD storage.

To copy the files off the appliance using WinSCP, you need to enable the bash user as described here: https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk52763

Re: Save log from putty

JozkoMrkvicka — Fri, 29 Mar 2019 19:41:17 GMT

You can record all your work within Putty.

That said, you can run tcpdump without output to the file (just print to the screen) and then just copy and paste from putty session log file.

Re: Save log from putty

hezi_angel — Tue, 02 Apr 2019 04:20:43 GMT

Thanks jt's work.

But i can't open the file in WIRESHARK.

The file don't match.

Another question

How i can run TCPDUMP for all the lan

I have 3 different lan

I run the script

TCPDUMP -i lan1

And i get only the traffic on lan1

If I want to get all 3 lan in the log

What i need to write?

Thanks

Re: Save log from putty

PhoneBoy — Tue, 02 Apr 2019 14:27:12 GMT

tcpdump only allows you to get traffic from one interface at a time.
However, unless you've got your LAN ports set on different networks, it should be sufficient to just get LAN1 as that should get them all.
If that's not happening, you can check with ifconfig what "bridge" interface to use (should be br0) and use that interface instead.

If the LAN interfaces are truly on different networks, then you'll have to execute multiple tcpdump commands.

Re: Save log from putty

Maarten_Sjouw — Tue, 02 Apr 2019 18:06:51 GMT

There is no way to do that with tcpdump, you cannot use a screendump to move it to Wireshark, you need a raw file for that.
The only way to capture traffic from multiple interfaces is by using fw monitor and write to a file.

Re: Save log from putty

JozkoMrkvicka — Tue, 02 Apr 2019 18:10:32 GMT

In fact, there is a way how to monitor all traffic via tcpdump:

tcpdump -i any <YOUR_FILTER>

This will scan all interfaces (included VLANs) to match your filter settings.

Or just duplicate windows and perform tcpdump on separated interfaces in each session.

Re: Save log from putty

PhoneBoy — Tue, 02 Apr 2019 21:21:47 GMT

That might get some duplicate traffic, though.