local and external network issue

aplelois · 2024-02-23 06:51:23

Hi,
I have colocation at a datacenter and I have two servers one would be for database and other one to host http server.
I have local ethernet connected to switch so that servers can use ips like 192.168.1.101 to connect to mysql.
I am having a little bit of an issue with servers not being able to ping each other with local ip..
What is it that I am missing here?

[(01:33 AM)][(root@atf)] [(~)] $ ip route
default via 208.117.37.129 dev eno1np0 proto static metric 100
default via 192.168.1.1 dev eno2np1 proto static metric 101
192.168.1.0/24 dev eno2np1 proto kernel scope link src 192.168.1.103 metric 101
208.117.37.129 dev eno1np0 proto static scope link metric 100 

[(01:33 AM)][(root@site)] [(~)] $ ifconfig
eno1np0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 208.*.*.*  netmask 255.255.255.255  broadcast 0.0.0.0
        inet6 fe80::3eec:efff:fec8:4b00  prefixlen 64  scopeid 0x20<link>
        ether 3c:ec:ef:c8:4b:00  txqueuelen 1000  (Ethernet)
        RX packets 15482764  bytes 20552671448 (19.1 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 15477718  bytes 13958702853 (13.0 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eno2np1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.103  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::3eec:efff:fec8:4b01  prefixlen 64  scopeid 0x20<link>
        ether 3c:ec:ef:c8:4b:01  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 8634  dropped 0  overruns 0  frame 1930039
        TX packets 59271  bytes 9698668 (9.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Last edited by aplelois (2024-02-23 15:41:57)

seth · 2024-02-23 09:24:51

208.*.*.* is a public IP, you might want to redact that.

Can you "ping -I eno2np1 192.168.1.101"?
Also you'll need to provide the config of the other host.
And you might want to get rid of the second default to not router traffic there in case the pupblic IP drops out.

aplelois · 2024-02-23 16:30:16

I have 4 servers 2 are windows and 2 are rocky linux..
I can ping the two windows from each other but the linux ones are just not wanting to cooperate

[(10:59 AM)][(root@site)] [(/etc/sysconfig/network-scripts)] $ ping -I eno2np1 192.168.1.101
PING 192.168.1.101 (192.168.1.101) from 192.168.1.103 eno2np1: 56(84) bytes of data.
From 192.168.1.103 icmp_seq=1 Destination Host Unreachable
From 192.168.1.103 icmp_seq=2 Destination Host Unreachable
From 192.168.1.103 icmp_seq=3 Destination Host Unreachable
^Z
[2]+  Stopped

seth · 2024-02-23 17:27:18

I have 4 servers 2 are windows and 2 are rocky linux..

https://bbs.archlinux.org/misc.php?action=rules

The error means "there is no host with the IP 192.168.1.101" - either because it's not there or it doesn't respond to ICMP request

Arch Linux

#1 2024-02-23 06:51:23

local and external network issue

#2 2024-02-23 09:24:51

Re: local and external network issue

#3 2024-02-23 16:30:16

Re: local and external network issue

#4 2024-02-23 17:27:18

Re: local and external network issue

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