Re: transparent proxy

2019-07-03 Thread Alan Carroll
I'll try to take a look. Did the slides help at all? On Tue, Jul 2, 2019 at 9:52 PM Dk Jack wrote: > Hi All, > Can someone take a look at the iptables trace below and see if I am making > an error with my ATS linux bridge mode configuration? I've been trying to > configure ATS in linux bridge mo

Re: transparent proxy

2019-07-02 Thread Dk Jack
Hi All, Can someone take a look at the iptables trace below and see if I am making an error with my ATS linux bridge mode configuration? I've been trying to configure ATS in linux bridge mode but have been unsuccessful. I think I've followed the documentation to the dot. However, the packets are no

Re: transparent proxy

2019-06-24 Thread Dk Jack
I disabled rp_filter. However, I see no change in behavior. The kernel seems to be dropping it after picking it up from the interface. I can see the SYN when I do tcpdump on the physical interface. However, I don't see it on bridge interface (br0). Not sure if that offers a clue. I flushed all the

Re: transparent proxy

2019-06-24 Thread Alan Carroll
I don't think this went through so I'm sending it again. These are slides from an ApacheCon talk I gave about transparency. Among the details is a nice check list of things to check when it doesn't work. https://www.dropbox.com/sh/h7erczfbt8ug8kn/AADJAqNz_xizurIHE6hx8Q8ka?preview=ApacheCon-2013.p

Re: transparent proxy

2019-06-24 Thread Dk Jack
Ah! Yeah, I think you are taking about reverse path filter. I remember checking for it. But I’ll check again. Dk. > On Jun 24, 2019, at 8:31 AM, SUSAN HINRICHS wrote: > > Rp_filter is a reverse proxy filter. If enabled, which it is by default, it > will drop packets that show up on unexpecte

Re: transparent proxy

2019-06-24 Thread SUSAN HINRICHS
Rp_filter is a reverse proxy filter. If enabled, which it is by default, it will drop packets that show up on unexpected interfaces. May not be an issue in the bridge case, but something to look into. On Sun, Jun 23, 2019, 11:54 PM Dk Jack wrote: > Hi Susan, > yes, I've enabled ip_forward. What

Re: transparent proxy

2019-06-24 Thread Alan Carroll
See if this helps - among other things it has a check list of issues to check. https://www.dropbox.com/sh/h7erczfbt8ug8kn/AADJAqNz_xizurIHE6hx8Q8ka This is available from the wiki, under "Presentations", back from 2013. On Sun, Jun 23, 2019 at 11:54 PM Dk Jack wrote: > Hi Susan, > yes, I've enab

Re: transparent proxy

2019-06-23 Thread Dk Jack
Hi Susan, yes, I've enabled ip_forward. What's an rp_filter? Haven't checked /var/log/messages... Bhasker. On Sun, Jun 23, 2019 at 8:01 PM SUSAN HINRICHS wrote: > It seems like it takes me a couple days of fiddling each time I have to set > up transparent mode. > > Have you enabled ip_forward?

Re: transparent proxy

2019-06-23 Thread SUSAN HINRICHS
It seems like it takes me a couple days of fiddling each time I have to set up transparent mode. Have you enabled ip_forward? Have you disabled rp_filter? Are you seeing Martian messages in your /bar/log/messages? On Sun, Jun 23, 2019, 7:23 PM Dk Jack wrote: > Hi, > I am trying to test ATS in