Port baseline to Debian 11 (codename Bullseye).

1 files changed, 0 insertions, 2 deletions

diff --git a/roles/common/tasks/sysctl.yml b/roles/common/tasks/sysctl.yml
index f95b7fa..08a1b13 100644
--- a/roles/common/tasks/sysctl.yml
+++ b/roles/common/tasks/sysctl.yml
@@ -1,40 +1,38 @@
 - sysctl: name={{ item.name }} value={{ item.value }} sysctl_set=yes
   with_items:
     - { name: 'kernel.domainname', value: '{{ ansible_domain }}' }
 
       # Networking. See
       # https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt
 
       # Enable Spoof protection (reverse-path filter). Turn on Source
       # Address Verification in all interfaces to prevent some spoofing
       # attacks.
     - { name: 'net.ipv4.conf.default.rp_filter', value: 1 }
     - { name: 'net.ipv4.conf.all.rp_filter',     value: 1 }
 
       # Disable SYN cookies and improve SYN backlog handling, see tcp(7) and
       # https://levelup.gitconnected.com/linux-kernel-tuning-for-high-performance-networking-high-volume-incoming-connections-196e863d458a
-      # TODO bullseye: remove net.core.somaxconn as 5.4 and later default to 4096
     - { name: 'net.ipv4.tcp_syncookies',      value: 0     }
     - { name: 'net.ipv4.tcp_synack_retries',  value: 1     }
     - { name: 'net.ipv4.tcp_max_syn_backlog', value: 32768 }
-    - { name: 'net.core.somaxconn',           value: 4096  }
 
       # We rate-limit not only the default ICMP types 3, 4, 11 and 12
       # (0x1818), but also types 0 and 8. See icmp(7).
     - { name: 'net.ipv4.icmp_ratemask',   value: 6425 }
     - { name: 'net.ipv4.icmp_ratelimit',  value: 1000 }
 
       # Disable packet forwarding between interfaces (we are not a router).
     - { name: 'net.ipv4.ip_forward',          value: 0 }
     - { name: 'net.ipv6.conf.all.forwarding', value: 0 }
 
       # Do not accept ICMP redirects (prevent MITM attacks).
     - { name: 'net.ipv4.conf.all.accept_redirects', value: 0 }
     - { name: 'net.ipv6.conf.all.accept_redirects', value: 0 }
 
       # Do not send ICMP redirects (we are not a router).
     - { name: 'net.ipv4.conf.default.send_redirects', value:  0 }
     - { name: 'net.ipv4.conf.all.send_redirects',     value:  0 }
 
       # Do not accept IP source route packets (we are not a router).
     - { name: 'net.ipv4.conf.all.accept_source_route', value:  0 }