сеть настраивал через NetworkManager. Больше нигде ничего не трогал. и не задумывался.
Все работало.
Стали появляться моменты, когда цифровые адреса пингуются и открываются, а символьные - нет.
и вот окончательно.
Ну и браузер открывает страницу по цифровому IP-адресу
На других машинах рядом всё работает, загрзился с диска - всё работает, значит причина не в DNSсерваке, а в системе. Сравнил /etc/resolv.conf с диска и в системе - одинаковые.
Причем у нас две сети. Универовская и ТТК - на обоих интерфейсах одинаково.
Что ещё глядеть? в чем может быть причина??
Не так давно установил protonvpn - грешу на него. Но что он мог поменть?
iptables?
хотя и после sudo iptables -F и перезагрузки без изменений...
apt тоже не работает, если чё ))
Вот параметры
ifconfig
enp7s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.111 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::af17:2fde:ce38:e6d2 prefixlen 64 scopeid 0x20<link>
ether 54:04:a6:c1:15:ca txqueuelen 1000 (Ethernet)
RX packets 289026 bytes 17953346 (17.9 MB)
RX errors 0 dropped 5127 overruns 0 frame 0
TX packets 144 bytes 40165 (40.1 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ipv6leakintrf0: flags=195<UP,BROADCAST,RUNNING,NOARP> mtu 1500
inet6 fe80::2634:33c:a965:393 prefixlen 64 scopeid 0x20<link>
inet6 fdeb:446c:912d:8da:: prefixlen 64 scopeid 0x0<global>
ether f6:09:05:82:d6:71 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 11702 bytes 1175812 (1.1 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Локальная петля (Loopback))
RX packets 25649 bytes 1884067 (1.8 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 25649 bytes 1884067 (1.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
/etc/network/interfaces
# interfaces(5) file used by ifup(

and ifdown(

auto lo
iface lo inet loopback
NetworkManager --print-config
# NetworkManager configuration: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, no-mac-addr-change.conf) (run: 10-globally-managed-devices.conf) (etc: default-wifi-powersave-on.conf)
[main]
# rc-manager=symlink
# auth-polkit=true
# dhcp=internal
dns=systemd-resolved
plugins=ifupdown,keyfile
[ifupdown]
managed=false
[logging]
# backend=journal
# audit=true
[device]
wifi.scan-rand-mac-address=no
[device-mac-addr-change-wifi]
match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl
wifi.scan-rand-mac-address=no
[connection]
wifi.powersave=3
# no-auto-default file "/var/lib/NetworkManager/no-auto-default.state"
nmcli -f NAME,DEVICE,FILENAME connection show
NAME DEVICE FILENAME
ттк enp7s0 /etc/NetworkManager/system-connections/ттк.nmconnection
pvpn-ipv6leak-protection ipv6leakintrf0 /etc/NetworkManager/system-connections/pvpn-ipv6leak-protection.nmconnection
VPN-соединение 1 -- /etc/NetworkManager/system-connections/VPN-соединение 1.nmconnection
Проводное соединение 1 -- /etc/NetworkManager/system-connections/Проводное соединение 1.nmconnection
/etc/NetworkManager/system-connections/Проводное соединение 1.nmconnection
[connection]
id=Проводное соединение 1
uuid=5a66003e-2d82-3bcf-a057-aa08588ede5f
type=ethernet
autoconnect-priority=-999
interface-name=enp7s0
permissions=
timestamp=1664852816
[ethernet]
mac-address-blacklist=
[ipv4]
address1=192.168.23.12/24,192.168.23.1
dns=192.168.30.10;192.168.20.32;8.8.8.8;8.8.4.4;
dns-search=
may-fail=false
method=manual
[ipv6]
addr-gen-mode=stable-privacy
dns-search=
ip6-privacy=0
method=auto
[proxy]
/etc/NetworkManager/system-connections/ттк.nmconnection
[connection]
id=ттк
uuid=4d4a5273-61c4-4e25-bd74-b3bbe632fe73
type=ethernet
permissions=
timestamp=1664789005
[ethernet]
mac-address-blacklist=
[ipv4]
dns=8.8.8.8;8.8.4.4;
dns-search=
method=auto
[ipv6]
addr-gen-mode=stable-privacy
dns-search=
ip6-privacy=0
method=auto
[proxy]
/etc/resolv.conf
nameserver 127.0.0.53
options edns0 trust-ad
ls /etc/resolvconf/update-libc.d
avahi-daemon
resolvectl status
Global
LLMNR setting: no
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNSSEC NTA: 10.in-addr.arpa
16.172.in-addr.arpa
168.192.in-addr.arpa
17.172.in-addr.arpa
18.172.in-addr.arpa
19.172.in-addr.arpa
20.172.in-addr.arpa
21.172.in-addr.arpa
22.172.in-addr.arpa
23.172.in-addr.arpa
24.172.in-addr.arpa
25.172.in-addr.arpa
26.172.in-addr.arpa
27.172.in-addr.arpa
28.172.in-addr.arpa
29.172.in-addr.arpa
30.172.in-addr.arpa
lines 1-23...skipping...
Global
LLMNR setting: no
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNSSEC NTA: 10.in-addr.arpa
16.172.in-addr.arpa
168.192.in-addr.arpa
17.172.in-addr.arpa
18.172.in-addr.arpa
19.172.in-addr.arpa
20.172.in-addr.arpa
21.172.in-addr.arpa
22.172.in-addr.arpa
23.172.in-addr.arpa
24.172.in-addr.arpa
25.172.in-addr.arpa
26.172.in-addr.arpa
27.172.in-addr.arpa
28.172.in-addr.arpa
29.172.in-addr.arpa
30.172.in-addr.arpa
31.172.in-addr.arpa
corp
d.f.ip6.arpa
home
internal
intranet
lan
local
private
test
Link 3 (ipv6leakintrf0)
Current Scopes: DNS
DefaultRoute setting: yes
LLMNR setting: yes
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
Current DNS Server: ::1
DNS Servers: ::1
DNS Domain: ~.
Link 2 (enp7s0)
Current Scopes: none
DefaultRoute setting: no
LLMNR setting: yes
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
netplan - единственный файл /etc/netplan/01-network-manager-all.yaml...
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
Пользователь добавил сообщение 04 Октября 2022, 10:24:59:
чё то не нравится про 80й порт... или я ошибаюсь?
sudo lsof -i -P
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
systemd-r 749 systemd-resolve 12u IPv4 28810 0t0 UDP localhost:53
systemd-r 749 systemd-resolve 13u IPv4 28811 0t0 TCP localhost:53 (LISTEN)
systemd-r 749 systemd-resolve 15u IPv6 79005 0t0 UDP ip6-localhost:58622->ip6-localhost:53
systemd-r 749 systemd-resolve 16u IPv6 79006 0t0 UDP ip6-localhost:37462->ip6-localhost:53
systemd-r 749 systemd-resolve 17u IPv6 79007 0t0 UDP ip6-localhost:57345->ip6-localhost:53
systemd-r 749 systemd-resolve 18u IPv6 79008 0t0 UDP ip6-localhost:38004->ip6-localhost:53
systemd-r 749 systemd-resolve 19u IPv6 75428 0t0 UDP ip6-localhost:36714->ip6-localhost:53
systemd-r 749 systemd-resolve 20u IPv6 78993 0t0 UDP ip6-localhost:41670->ip6-localhost:53
systemd-r 749 systemd-resolve 21u IPv6 75410 0t0 UDP ip6-localhost:52097->ip6-localhost:53
systemd-r 749 systemd-resolve 22u IPv6 79011 0t0 UDP ip6-localhost:60095->ip6-localhost:53
systemd-r 749 systemd-resolve 23u IPv6 76403 0t0 UDP ip6-localhost:47312->ip6-localhost:53
systemd-r 749 systemd-resolve 24u IPv6 75420 0t0 UDP ip6-localhost:46774->ip6-localhost:53
systemd-r 749 systemd-resolve 25u IPv6 79012 0t0 UDP ip6-localhost:45956->ip6-localhost:53
systemd-t 750 systemd-timesync 12u IPv4 76410 0t0 UDP localhost:55953->localhost:53
avahi-dae 844 avahi 12u IPv4 31106 0t0 UDP *:5353
avahi-dae 844 avahi 13u IPv6 31107 0t0 UDP *:5353
avahi-dae 844 avahi 14u IPv4 31108 0t0 UDP *:40236
avahi-dae 844 avahi 15u IPv6 31109 0t0 UDP *:46286
cupsd 846 root 6u IPv6 32774 0t0 TCP ip6-localhost:631 (LISTEN)
cupsd 846 root 7u IPv4 32775 0t0 TCP localhost:631 (LISTEN)
NetworkMa 848 root 26u IPv4 32810 0t0 UDP 192.168.1.111:68->192.168.1.1:67
cups-brow 996 root 7u IPv4 31591 0t0 UDP *:631
java 1006 jetty 58u IPv6 34814 0t0 TCP *:8080 (LISTEN)
nmbd 1182 root 13u IPv4 33373 0t0 UDP *:137
nmbd 1182 root 14u IPv4 33374 0t0 UDP *:138
nmbd 1182 root 15u IPv4 33389 0t0 UDP 192.168.1.111:137
nmbd 1182 root 16u IPv4 33390 0t0 UDP 192.168.1.255:137
nmbd 1182 root 17u IPv4 33391 0t0 UDP 192.168.1.111:138
nmbd 1182 root 18u IPv4 33392 0t0 UDP 192.168.1.255:138
charon 1224 root 10u IPv6 33334 0t0 UDP *:500
charon 1224 root 11u IPv6 33335 0t0 UDP *:4500
charon 1224 root 12u IPv4 33336 0t0 UDP *:500
charon 1224 root 13u IPv4 33337 0t0 UDP *:4500
xl2tpd 1232 root 3u IPv4 34115 0t0 UDP *:1701
smbd 1295 root 46u IPv6 34433 0t0 TCP *:445 (LISTEN)
smbd 1295 root 47u IPv6 34434 0t0 TCP *:139 (LISTEN)
smbd 1295 root 48u IPv4 34435 0t0 TCP *:445 (LISTEN)
smbd 1295 root 49u IPv4 34436 0t0 TCP *:139 (LISTEN)
skypeforl 2110 juve 26u IPv4 75430 0t0 UDP localhost:42859->localhost:53
skypeforl 2127 juve 79u IPv6 42935 0t0 UDP *:54006
firefox 2649 juve 58u IPv4 76409 0t0 UDP localhost:33309->localhost:53
firefox 2649 juve 71u IPv4 75423 0t0 UDP localhost:47360->localhost:53
firefox 2649 juve 72u IPv4 77557 0t0 UDP localhost:59877->localhost:53
firefox 2649 juve 73u IPv4 79010 0t0 UDP localhost:35701->localhost:53
ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp7s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 54:04:a6:c1:15:ca brd ff:ff:ff:ff:ff:ff
inet 192.168.1.111/24 brd 192.168.1.255 scope global dynamic noprefixroute enp7s0
valid_lft 83875sec preferred_lft 83875sec
inet6 fe80::af17:2fde:ce38:e6d2/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: ipv6leakintrf0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether 82:90:92:1f:db:8d brd ff:ff:ff:ff:ff:ff
inet6 fdeb:446c:912d:8da::/64 scope global noprefixroute
valid_lft forever preferred_lft forever
inet6 fe80::2634:33c:a965:393/64 scope link noprefixroute
valid_lft forever preferred_lft forever
ip r
default via 192.168.1.1 dev enp7s0 proto dhcp metric 100
169.254.0.0/16 dev enp7s0 scope link metric 1000
192.168.1.0/24 dev enp7s0 proto kernel scope link src 192.168.1.111 metric 100
sudo iptables-save
# Generated by iptables-save v1.8.4 on Tue Oct 4 13:47:23 2022
*filter
:INPUT ACCEPT [2038:194717]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [1357:102640]
COMMIT
# Completed on Tue Oct 4 13:47:23 2022