Search found 9 matches

by soushiant
2019/08/29 07:41:27
Forum: CentOS 7 - Networking Support
Topic: Network bonding problem in Centos 7
Replies: 9
Views: 1255

Re: Network bonding problem in Centos 7

A main problem after successfully configuring the bonding was that xmit_hash_policy was not set in bond0.ifcfg file. The default value then sends the outgoing traffic in one port (Although there are many destination IPs to send) and receives the incoming traffic on the other port. Setting the policy...
by soushiant
2019/07/03 09:10:23
Forum: CentOS 7 - Security Support
Topic: Server securities.
Replies: 2
Views: 1058

Re: Server securities.

You can enable the default Centos firewall: "https://linuxize.com/post/how-to-setup- ... -centos-7/"
And for a pessimistic setting, you can change the active zone to "drop" which blocks all UDP, ICMP floods as well as TCP SYNfloods.
by soushiant
2019/07/03 08:59:45
Forum: CentOS 7 - Security Support
Topic: Firewalld not blocking the assigned ipset
Replies: 1
Views: 1096

Re: Firewalld not blocking the assigned ipset

The problem is solved by adding rich-rule to the drop zone and removing the ipset source. But still the question remains that why ipset is not working? firewall-cmd --permanent --zone=drop --remove-source=ipset:netblock firewall-cmd --permanent --zone=drop --add-rich-rule="rule family='ipv4' source ...
by soushiant
2019/07/01 05:56:14
Forum: CentOS 7 - Security Support
Topic: Firewalld not blocking the assigned ipset
Replies: 1
Views: 1096

Firewalld not blocking the assigned ipset

Hi. from long time ago i was using firewalld to block incoming floods to my server from some IPs and it was working fine without changing the interfaces attached to the "drop" zone. I set the ipset like: firewall-cmd --permanent --new-ipset=netblock --type=hash:net --option=maxelem=1200000 --option=...
by soushiant
2019/06/26 12:33:04
Forum: CentOS 7 - Networking Support
Topic: Network bonding problem in Centos 7
Replies: 9
Views: 1255

Re: Network bonding problem in Centos 7

Yes it says that a single TCP connection will not be fragmented between the ethernet slaves. So in case of multiple users downloading from the server, the traffic would be balanced.
by soushiant
2019/06/26 07:48:27
Forum: CentOS 7 - Networking Support
Topic: Network bonding problem in Centos 7
Replies: 9
Views: 1255

Re: Network bonding problem in Centos 7

When i download a sample file from the server, the traffic is not equally distributed between ethernet ports. It only comes through Eth1. As i know this is not normal for port channeling(bonding) in mode 4.
by soushiant
2019/06/26 05:55:09
Forum: CentOS 7 - Networking Support
Topic: Network bonding problem in Centos 7
Replies: 9
Views: 1255

Re: Network bonding problem in Centos 7

With changing the PREFIX to 29 the bonding is now active both on the server and DC. But the problem is that the "Send" traffic goes only through Eth1 and the "Receive" traffic is coming only from Eth2! Therefore, the load is not balanced.
by soushiant
2019/06/25 09:33:54
Forum: CentOS 7 - Networking Support
Topic: Network bonding problem in Centos 7
Replies: 9
Views: 1255

Re: Network bonding problem in Centos 7

Well I've changed the IPs just for the forum display because i didn't wanted to be visible to public but i did it wrong! Consider the following ifcfg for bonding file: BONDING_OPTS="mode=802.3ad miimon=100 lacp_rate=1" TYPE=Bond BONDING_MASTER=yes PROXY_METHOD=none BROWSER_ONLY=no BOOTPROTO=none IPA...
by soushiant
2019/06/25 08:06:02
Forum: CentOS 7 - Networking Support
Topic: Network bonding problem in Centos 7
Replies: 9
Views: 1255

Network bonding problem in Centos 7

Hi. in my SuperMicro server with dual 1G ethernet ports i wanted to use port bonding (mode 802.3ad). The bonding is activated in the datacenter and they said that the ports are up but i can't connect to the server and it doesn't ping. The NetworkManager is "yum removed". When the datacenter disables...

Go to advanced search