search for: 100files

...various logs and especially atop files showed, that minutes before the box became unreachable, number of in.tftpd processes has grown to ~4000. Checking pcap files showed that phones were sending file requests, but were not getting any replies thus retrying every 5s (so tftp request rade growed to ~100files each 5s). We were trying to simulate the problem on test virtual guest and successfully reproduced it: - VM got setup as tftp server (tftp started as xinet service, details below) - on host, we've blocked all outgoing tftp traffic using iptables. then trying tftp request from some other mach...