On 27/08/14, Reco (recoverym4n@gmail.com) wrote: > On Tue, 26 Aug 2014 23:12:05 +0100 > "Karl E. Jorgensen" <karl@jorgensen.org.uk> wrote: > > > > > 4) sysctl --system > > > sysctl --system > > > * Applying /etc/sysctl.d/99-sysctl.conf ... > > > net.ipv4.icmp_echo_ignore_all = 0 > > > net.ipv4.icmp_echo_ignore_broadcasts = 0 > > > > These caught my eye: Ignore all ICMP ? That would stop ping > > (a.k.a. ICMP echo) from working, wouldn't it? > > In this case 0 means 'false'. I.e. > > net.ipv4.icmp_echo_ignore_broadcasts = 0 > > equals to > > 'do not ignore icmp echo broadcasts'. Karl, Reco, That did it. "ping localhost" now works. For the record, here are the results of systemctl --system: * Applying /etc/sysctl.conf ... net.ipv4.icmp_echo_ignore_all = 0 net.ipv4.icmp_echo_ignore_broadcasts = 1 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.all.rp_filter = 1 net.ipv4.ip_forward = 1 net.ipv4.conf.all.secure_redirects = 1 vm.swappiness = 1 vm.vfs_cache_pressure = 50 I am truly grateful for the good help I have received. Many, many thaqnks. -- JohnRChamplin@wowway.com ==================================================== GPG key 1024D/99421A63 2005-01-05 EE51 79E9 F244 D734 A012 1CEC 7813 9FE9 9942 1A63 gpg --keyserver subkeys.pgp.net --recv-keys 99421A63
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