install Link

(https://www.tecmint.com/install-ntp-server-in-centos)

Open Firewall

https://www.vultr.com/docs/setup-iptables-firewall-on-centos-6

Sample Config File

http://www.rmalekghasemi.ir/file/ntpd.conf

حتما توی Cron job برای sysn سرور 5 دقیقه یک بار

کامند

ntpq -p

و

date -R

زده شود

(https://tecadmin.net/install-telnet-server-on-centos-redhat)

https://doc.pfsense.org/index.php/What_are_TCP_Flags

https://supportforums.cisco.com/t5/lan-switching-and-routing/host-flapping-between-ports/td-p/2126753

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-3sg/irg-xe-3sg-book/irg-dynamic-neighbor.html

https://wiki.mikrotik.com/wiki/Manual:IP/Firewall/Raw

[admin@A] > routing bgp peer refresh peer1

https://wiki.mikrotik.com/wiki/Manual:BGP_soft_reconfiguration_alternatives_in_RouterOS

https://forum.mikrotik.com/viewtopic.php?f=2&t=126026

https://www.cisco.com/c/en/us/td/docs/security/asa/asa84/configuration85/guide/asa_cfg_cli_85/route_maps.html

http://jodies.de/ipcalc?host=94.241.160.0&mask1=24&mask2=11