I'm seeing the following errors in my daemon.log: Jan 5 05:05:30 debian systemd[1]: File /lib/systemd/system/systemd-journald.service:35 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:30 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:30 debian systemd[1]: File /lib/systemd/system/systemd-logind.service:37 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:30 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:30 debian systemd[1]: File /lib/systemd/system/systemd-udevd.service:34 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:30 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:30 debian systemd[1]: /lib/systemd/system/user@.service:21: Failed to parse boolean value, ignoring: pids cpu Jan 5 05:05:30 debian systemd[1]: /lib/systemd/system/user@.service:21: Failed to parse boolean value, ignoring: pids cpu Jan 5 05:05:31 debian systemd[1]: Reloading. Jan 5 05:05:31 debian systemd[1]: File /lib/systemd/system/systemd-journald.service:35 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:31 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:31 debian systemd[1]: File /lib/systemd/system/systemd-logind.service:37 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:31 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:31 debian systemd[1]: File /lib/systemd/system/systemd-udevd.service:34 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:31 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:31 debian systemd[1]: /lib/systemd/system/user@.service:21: Failed to parse boolean value, ignoring: pids cpu Jan 5 05:05:31 debian systemd[1]: /lib/systemd/system/user@.service:21: Failed to parse boolean value, ignoring: pids cpu Jan 5 05:05:31 debian systemd[1]: Reloading. Jan 5 05:05:31 debian systemd[1]: File /lib/systemd/system/systemd-journald.service:35 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:31 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:31 debian systemd[1]: File /lib/systemd/system/systemd-logind.service:37 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:31 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:31 debian systemd[1]: File /lib/systemd/system/systemd-udevd.service:34 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:31 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:31 debian systemd[1]: /lib/systemd/system/user@.service:21: Failed to parse boolean value, ignoring: pids cpu Jan 5 05:05:31 debian systemd[1]: /lib/systemd/system/user@.service:21: Failed to parse boolean value, ignoring: pids cpu Jan 5 05:05:31 debian systemd[1]: Reloading. Jan 5 05:05:31 debian systemd[1]: File /lib/systemd/system/systemd-journald.service:35 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:31 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:31 debian systemd[1]: File /lib/systemd/system/systemd-logind.service:37 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:31 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:31 debian systemd[1]: File /lib/systemd/system/systemd-udevd.service:34 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:31 debian systemd[1]: Proceeding WITHOUT firewalling in effect! Jan 5 05:05:31 debian systemd[1]: /lib/systemd/system/user@.service:21: Failed to parse boolean value, ignoring: pids cpu Jan 5 05:05:31 debian systemd[1]: /lib/systemd/system/user@.service:21: Failed to parse boolean value, ignoring: pids cpu Jan 5 05:05:31 debian systemd[1]: Reexecuting. Jan 5 05:05:31 debian systemd[1]: systemd 236 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN default-hierarchy=hybrid) Jan 5 05:05:31 debian systemd[1]: Detected virtualization kvm. Jan 5 05:05:31 debian systemd[1]: Detected architecture x86-64. Jan 5 05:05:31 debian systemd[1]: File /lib/systemd/system/systemd-journald.service:35 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. Jan 5 05:05:31 debian systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.) Jan 5 05:05:32 debian systemd[1]: Stopped Flush Journal to Persistent Storage. Jan 5 05:05:32 debian systemd[1]: Stopping Flush Journal to Persistent Storage... Jan 5 05:05:32 debian systemd[1]: Starting Flush Journal to Persistent Storage... Jan 5 05:05:32 debian systemd[1]: Started Flush Journal to Persistent Storage. Jan 5 05:05:33 debian systemd[1]: Reloading. Jan 5 05:05:33 debian systemd[1]: Reloading. Jan 5 05:05:33 debian systemd[1]: Reloading. Jan 5 05:05:33 debian systemd[1]: Reloading.
I'm running debian-testing, and I'm running a Linode kernel. Some searches say to enable CONFIG_BPF_SYSCALL in the kernel config, however, I running a Linode kernel, 4.14.12. I really do not want to get into compiling my own kernel. Is there some easier way to fix this? And by the way, I do have a firewall, I'm using ipfilter and I have confirmed that it continues to work.
