16851556's questions

last maybe 4 weeks is coming SPAM e-mails from various domains. In common is that when i paste the source code of the e-mail to

https://www.spamcop.net

is detected this provider and their mailbox: [email protected] i have reported this activity to des capital numerous times via spamcop and also manually to info@des...(got no reply) no effect. I would block the sender, but it is from various domains and various mail content, so i do not know how to block in Thunderbird.

When check "From" in one of the e-mail source and check hostname IP, i see "server9.lindhint.info has address 212.193.29.252" whois on that IP:

inetnum:        212.193.28.0 - 212.193.31.255
netname:        Serveri0n
org:            ORG-DCB8-RIPE
country:        NL
admin-c:        AA35882-RIPE
tech-c:         TA7409-RIPE
status:         ASSIGNED PA
mnt-by:         RELCOMGROUP-EXT-MNT
created:        2020-12-02T15:36:18Z
last-modified:  2021-05-11T06:56:00Z
source:         RIPE

organisation:   ORG-DCB8-RIPE
org-name:       Des Capital B.V.
country:        NL
org-type:       LIR
address:        Krammer 8
address:        3232HE
address:        Brielle
address:        NETHERLANDS

Question: can i contact their IP/network provider or some authority that can force them to cease the SPAM, which, how? RIPE claims "There is nothing we can do if a network operator chooses not to reply." I am not from the country of this host.

Update: it came to my attention that "Serveri0n" (mentioned in "netname" whois) have a colocation customer whose customer is likely the SPAMmer. Serveri0n acted quickly to prevent SPAM. Thank you (answers still welcome)

i am having virtual server from Hetzner and after installing the CentOS 6 linux, i do not know how to make the default installation available from the internet, how to setup the routing. The Hetzner says that the gateway IP should be 172.31.1.1 (https://wiki.hetzner.de/index.php/CloudServer/en#What_are_Routes.3F - "The special private IP Address 172.31.1.1. This IP address is being used as a default gateway of your servers public network interface. ")

At first following worked: /sbin/route add default gw 172.31.1.1 eth0

but now one day later it says SDIOCADDRT: Network is unreachable. Current routing table (route -n) contains only one rule: 169.254.0.0/16 dev eth0 scope link metric 1002

Config file for the eth0 interface is: https://i.postimg.cc/9Qc6VwK7/ifcfg-eth0.gif

Please can you tell me which commands should make the routing table be done properly? Or what is wrong in my eth0 interface config. file?

UPDATE: i was told i should use static configuration on CentOS 6, but i am having problem with the route-eth0 file as i am unable to create it:

cp /etc/host.conf /etc/sysconfig/network-scripts/route-eth0 perl -pi -e s/multi on/172\.31\.1\.1\/32 dev eth0\\ndefault via 172\.31\.1\.1 dev eth0/g /etc/sysconfig/network-scripts/route-eth0

The error is: Substitution pattern not terminated at -e line 1.

(i can not use echo or tee or vim because Hetzner console do not work with | " ' $ > characters and Ctrl key)

i installed Tun using:

modprobe tun

then did:

lsmod | grep tun
tun                    83840  0

Please how to make Tun running at reboot?

This is written on Hamachi website:

...Then add tun to the list of modules by using your favorite text editor and Create /etc/modules-load.d/tun.conf 

#Load tun module at boot.
tun

But this folder foes not exist in my /etc

Is it wise to add line "modprobe tun" into /etc/rc.local ?

Cant connect IPv6 linux server via Putty. Server IP should be like this: 2001:14c0:2:2f6f::6

But when i replace working IPv4 in my putty by this address, it dont connect returning: Unable to open connection to MYIPv6 Host does not exist

Please which files to check, commands to do to make IPv6 ssh connection working?

In /etc/sysconfig/network-scripts ssh config, I have:

Port 22
AddressFamily any
ListenAddress 0.0.0.0
ListenAddress ::

ping6 ipv6.google.com works

ping myipv6::6 works too

ping myipv6::1 works too (received, no packet loss)

traceroute6 google.com works too

If i do "service network restart" Linux command on my OpenVZ VPS host server (dedicated server where are virtual machines - VPSs hosted), how this can impact virtual machines? Can i loose SSH connectivity, why not?

i wanted to add PTR record, to my domain so the reverse IP is in PTR points to my nameserver.

So on my hosting IP provider i set my nameserver for the IP and it now shows in PTR (i used this tutorial),

but i want to ask, if i need to setup PTR in my DNS domain zone file too?

99.88.77.66.in-addr.arpa. IN PTR ns1.mydomainname.com.

there is no PTR, only A, NS, MX and similar

?

Please what is the purpose of the /proc/config.gz file in my Linux server filesystem?

Is it some backup file, or it is an updated file by the Linux system? Can I change it?