Looks fine to me:
if [ "$kernel_pppoe" ]; then printf "#!/bin/sh\n# Enable MSS clamping (autogenerated by pppoeconf)\n\niptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1400:1536 -j TCPMSS --clamp-mss-to-pmtu\n" > /etc/ppp/ip-up.d/0clampmss chmod +x /etc/ppp/ip-up.d/0clampmss
Looks fine to me:
if [ "$kernel_pppoe" ]; then \n\niptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss mss-to- pmtu\n" > /etc/ppp/ ip-up.d/ 0clampmss ip-up.d/ 0clampmss
printf "#!/bin/sh\n# Enable MSS clamping (autogenerated by
pppoeconf)
1400:1536 -j TCPMSS --clamp-
chmod +x /etc/ppp/