Enabling pf for transparent proxy on Mac OS X Mountain Lion
I'm doing some usability testing of a web application and am attempting to debug and record some SSL sessions using mitmproxy as a transparent proxy and for some reason pf under Mac OS X Mountain Lion isn't setting up the transparent redirects. First, I enable forwarding: sudo sysctl -w net.inet.ip.forwarding=1 Next, I create a simple pf.conf file with a single line on it: rdr on {en1, en0} inet p
How can I use rsync with a FAT file system?
I would like to write a simple backup script that saves some data to a FAT drive. Should I reformat the drive and use a better file system or is it possible to use rsync with FAT? If so, what problems might I run into? Would performance be a lot worse? EDIT: This is on linux, didn't even know there was a rsync for windows. The sources are various file systems (it's a mess), and the destination is
Higher rmem_max value leading to more packet loss
The rmem_max Linux setting defines the size of the buffer that receives UDP packets. When traffic becomes too busy, packet loss starts occurring. I made a graph showing how packet loss increases depending on the incoming bandwidth. (I use IPerf to generate UDP traffic between two VM instances). The different colors are for different rmem_max values: As you can see, setting rmem_max to 26214400 (da
debian - Anyone else experiencing high rates of linux server crashes today? - Server Fault
*NOTE: if your server still has issues due to confused kernels, and you can't reboot - the simplest solution proposed with gnu date installed on your system is: date -s now. This will reset the kernel's internal "time_was_set" variable and fix the CPU hogging futex loops in java and other userspace tools. I have straced this command on my own system an confirmed it's doing what it says on the tin
Bonding 2 or more Gigabyte NIC together to get 2Gbps performance between 1 server and 1 client?
I have not gotten the server or the NIC yet, but here is the target setup: 1x Server 1x Client 1 or more NIC linked point to point between the Server & Client (No switch involved) So I am wondering if it is possible to setup some form of bonding with an 2 Nic or 4 Nic pro Intel ethernet card on the PCI-X/PCI-E bus in a way that would enable the Client & Server to be able to share files faster than
Can't see other network interface in Debian Etch
I know there are two physical network interfaces in our server (haven't seen it live, but person from datacenter confirmed two ethernet sockets). Problem is, I can only see one via ifconfig -a. At first, here's what lspci reported: # lspci -vv|grep -i ethernet 00:19.0 Ethernet controller: Intel Corporation Unknown device 10bd (rev 02) 03:02.0 Ethernet controller: Intel Corporation 82541GI/PI Gigab
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