Why doesn't libvirt cooperate with iptables on fedora 32
viraptor asked: I’m trying to use pretty much the default installation of libvirt / kvm on Fedora 32. After installing libvirt, I’m trying to start up the default network: virsh …
Show upstream Cloudflare server IP after enabled nginx / set_real_ip_from
Ryan asked: I’ve followed cloudflare doc [1] that enabled set_real_ip_from in order to show original client’s IP My log format is log_format main ‘$remote_addr $http_cf_connecting_ip $http_x_forwarded_for Assume client real IP …
Undo'ing some network setups including 'promisc' mode
darune asked: Suppose I have the following script, roughly it sets up promisc mode and setup a bridge between the two networks (acting as a routing point on the mac …
Two or more hosts in traceroute answer
Maslak asked: Hi I have strange behavior of a traceroute to one of my public IP’s In one of a line I have multiple hostnames with timing like in the …
How can i find what generates a NetScan Abuse and how to prevent it?
Vladimir Stanciu asked: I have a VPS, on which i have some docker containers running. From time to time i receive a message, similar to the one below, from my …
What IPv6 Should I use
Nathaniel Sturtz asked: I have multiple IPv6s I need to know what works, on my network they all work, but I need to know what to use for my AAAA …
How to change hop limit of IPv6 in Linux?
caveman asked: net.ipv6.conf.all.accept_ra_min_hop_limit = 1 net.ipv6.conf.all.hop_limit = 65 net.ipv6.conf.default.accept_ra_min_hop_limit = 1 net.ipv6.conf.default.hop_limit = 65 net.ipv6.conf.enp0s25.accept_ra_min_hop_limit = 1 net.ipv6.conf.enp0s25.hop_limit = 65 net.ipv6.conf.lo.accept_ra_min_hop_limit = 1 net.ipv6.conf.lo.hop_limit = 65 net.ipv6.conf.wlp7s0.accept_ra_min_hop_limit = 1 net.ipv6.conf.wlp7s0.hop_limit …
OpenVPN: Client cannot ping 4.2.2.2 when connected
brad asked: My client cannot surf the internet when connected to the vpn. I have push "redirect-gateway def1" and [email protected]:/home# cat /proc/sys/net/ipv4/ip_forward 1 set. Sserver and client connect just fine …
How to fix "no address range available for DHCP request" error?
sunknudsen asked: Trying to run a DHCP server on lo using dnsmasq. $ cat /etc/dnsmasq.d/01-dhcp-loopback.conf interface=lo dhcp-range=10.0.2.10,10.0.2.254,255.255.255.0 port=0 I can get things working by adding the following alias to eth0, …
What to do when /etc/network/interfaces is missing on Debian?
sunknudsen asked: I just configured a Debian 10 virtual private server on a new hosting provider and somehow /etc/network/interfaces is missing. Running ip a reveals a lo and [email protected] interface. …