CentOS

Hallo everybody. I would like to have some help in booting a CentOS 7 partition using grub 0.97 (CentOS 5.2). My problem is the following: 1. I have some servers with CentOS 5.2 All this servers have the some disk partitions. In particular they have CentOS 5.2 installed in /dev/sda2 and an unused /d...

That command alone and once does not solve the issue; you wan't to reboot your machines whenever you receive (kernel) security fixes. Did you make your SNAT config persistent ? That's right. iptables-save > /etc/sysconfig/iptables should be sufficient. I cannot test it right now, as I cannot reboot...

Dear Whoever and all,

> Then you need to configure NAT or MASQ using iptables for outgoing packets on eth2 of server A.

it was as easy as issue:

iptables -t nat -A POSTROUTING -o eth2 -j MASQUERADE

on machine "A" and now it is all working fine. Thanks again

Dear Whoever,


> Does 10.1.1.1 know that machine B is behind machine A? You either need to configure the routes on the network, or configure NAT > or MASQ on machine A.

No, it doesn't. This is the problem.
Thank you very much for your help in understanding the problem.

> Have you set up NAT/MASQ on computer "A"? > > What are the IPTABLES rules? Do they allow forwarding? I have disabled iptables both on "A" and on "B": [root@usvc ~]# chkconfig --list | grep iptables iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off and: [root@usvc ~]# iptables -L Chain INPUT (poli...

I fear I am not been clear. Computer "A" is the server, the machine with three ethernet cards. The routing table of "A" (CentOS 6.10) is: [root@usvc ~]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.0.0 ...

Good morning, I have a problem with configuring a centos 6 machine as a gateway for a private LAN. I apologize if the following description is confused, I'll do my best. The Centos 6 machine has three nework cards: eth0 inet addr:192.168.0.254 Bcast:192.168.0.255 Mask:255.255.255.0 eth1 inet addr:19...