# lsmod | grep ipt_LOG
# modprobe ipt_LOG              # !!!! Loading ipt_LOG kernel module before VE start!
# lsmod | grep ipt_LOG
ipt_LOG                 8192  0 
x_tables               17928  13 ipt_LOG,xt_tcpudp,xt_state,xt_length,ipt_ttl,xt_tcpmss,ipt_TCPMSS,xt_multiport,xt_limit,ipt_tos,ipt_REJECT,iptable_nat,ip_tables
# cat /etc/vz/conf/4.conf | grep ipt_LOG
# cat /etc/vz/vz.conf | grep ipt_LOG
# vim /etc/vz/vz.conf # !!!! Aadding ipt_LOG to the list of available in VE
# cat /etc/vz/vz.conf | grep ipt_LOG
IPTABLES="ipt_REJECT ipt_tos ipt_limit ipt_multiport iptable_filter iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length ipt_state ipt_LOG"
# vzctl start 4
Starting VE ...
VE is mounted
Adding IP address(es): 10.0.1.2
Setting CPU units: 1000
Setting devices
File resolv.conf was modified
VE start in progress...
# vzctl enter 4
entered into VE 4
# dmesg 
# iptables -A OUTPUT -j LOG
# echo $?
0
# ping mail.ru
PING mail.ru (194.67.57.126) 56(84) bytes of data.
64 bytes from mail.ru (194.67.57.126): icmp_seq=0 ttl=119 time=18.2 ms
64 bytes from mail.ru (194.67.57.126): icmp_seq=1 ttl=119 time=17.8 ms

--- mail.ru ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 17.815/18.056/18.297/0.241 ms, pipe 2
# dmesg 
IN= OUT=venet0 SRC=10.0.1.2 DST=192.168.1.1 LEN=53 TOS=0x00 PREC=0x00 TTL=64 ID=59520 DF PROTO=UDP SPT=32768 DPT=53 LEN=33 
IN= OUT=venet0 SRC=10.0.1.2 DST=194.67.57.126 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=ICMP TYPE=8 CODE=0 ID=15423 SEQ=0 
IN= OUT=venet0 SRC=10.0.1.2 DST=192.168.1.1 LEN=72 TOS=0x00 PREC=0x00 TTL=64 ID=59539 DF PROTO=UDP SPT=32768 DPT=53 LEN=52 
IN= OUT=venet0 SRC=10.0.1.2 DST=194.67.57.126 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=ICMP TYPE=8 CODE=0 ID=15423 SEQ=1