On 08/20/18 08:26, Jonathan Ryshpan wrote: > Thanks for your help Three responses follow. > > To recap, here is: > $ cat /etc/resolv.conf > # Generated by NetworkManager search tew-818dru nameserver 192.168.10.1 > > On Sat, 2018-08-18 at 21:03 +0800, Ed Greshko wrote: >> What is the output of hostnamectl on your system > > $ hostnamectl > Static hostname: amito > Icon name: computer-desktop > Chassis: desktop > Machine ID: 118d9c2c0a1e4b51ab25e3ce8fd57219 > Boot ID: 21b543bfb22049e0905befaac3a5851d > Operating System: Fedora 28 (Twenty Eight) > CPE OS Name: cpe:/o:fedoraproject:fedora:28 > Kernel: Linux 4.17.14-202.fc28.x86_64 > Architecture: x86-64 > > > On Sat, 2018-08-18 at 17:51 +0800, Ed Greshko wrote: >> This is a typical DHCP response.... As you can see, it tells the client the IP >> address, subnet mask, broadcast address, DNS server, and Default router. >> >> Frame 8505: 345 bytes on wire (2760 bits), 345 bytes captured (2760 bits) on >> interface 0 > > I don't have such a detailed record of the DHCP setup, but here is an extract from > the system log: That info was from a wireshark capture to show what is on the wire. FWIW, a DHCP server can provide many more things to client. See RFC 2132if you're ever interested. https://tools.ietf.org/html/rfc2132 > > $ journalctl --boot | grep -i dhcp > Aug 19 09:26:47 amito NetworkManager[989]: <info> [1534696007.7446] dhcp-init: > Using DHCP client 'dhclient' > Aug 19 09:26:56 amito NetworkManager[989]: <info> [1534696016.7255] dhcp4 > (enp3s0): activation: beginning transaction (timeout in 45 seconds) > Aug 19 09:26:56 amito NetworkManager[989]: <info> [1534696016.9214] dhcp4 > (enp3s0): dhclient started with pid 1396 > Aug 19 09:26:57 amito dhclient[1396]: DHCPREQUEST on enp3s0 to 255.255.255.255 port > 67 (xid=0x26730e55) > Aug 19 09:26:57 amito dhclient[1396]: DHCPACK from 192.168.10.1 (xid=0x26730e55) > Aug 19 09:26:57 amito NetworkManager[989]: <info> [1534696017.5542] dhcp4 > (enp3s0): address 192.168.10.101 > Aug 19 09:26:57 amito NetworkManager[989]: <info> [1534696017.5543] dhcp4 > (enp3s0): plen 24 (255.255.255.0) > Aug 19 09:26:57 amito NetworkManager[989]: <info> [1534696017.5543] dhcp4 > (enp3s0): gateway 192.168.10.1 > Aug 19 09:26:57 amito NetworkManager[989]: <info> [1534696017.5543] dhcp4 > (enp3s0): lease time 86400 > Aug 19 09:26:57 amito NetworkManager[989]: <info> [1534696017.5543] dhcp4 > (enp3s0): nameserver '192.168.10.1' > Aug 19 09:26:57 amito NetworkManager[989]: <info> [1534696017.5543] dhcp4 > (enp3s0): domain name 'tew-818dru' > Aug 19 09:26:57 amito NetworkManager[989]: <info> [1534696017.5543] dhcp4 > (enp3s0): state changed unknown -> bou > > It looks like the DHCP setup message from the Trend server does request the client > (amito) to use search domain tew-818dru Well, your router is supplying a "domain name" but isn't a valid "domain name" as it doesn't end with a valid TLD (top level domain) such as .com, .edu, .tv, etc. Additionally, you don't have a domain name configured for your host amito. You should run.... hostnamectl set-hostname amito.validsomething.com or what ever makes sense in your situation. Don't get confused thinking that the command domainname is used to do that. That is for setting a NIS/YP domain name. Just as a matter of completeness. f28k-b1 is a hostname f28k-b1.greshko.com is known as a FQDN or Fully Qualified Domainname FWIW, you probably shouldn't be combining comments by 2 posters into one reply. Kind a messy. I'm not going to answer what to what he has said. -- Conjecture is just a conclusion based on incomplete information. It isn't a fact.
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