Exodist's questions

I just switched one of my systems from Gentoo to Ubuntu. There is one difference between the two setups that is driving me mad, and I cannot figure out how to fix it. When I use the 'up arrow' to go to a previous command, the cursor is moved to the start of the line. In Gentoo the cursor would remain at the end of the line. I have been using this behavior for over 10 years, adapting to the new behavior will be a major pain. How does one configure this?

This happens in any terminal: urxvt, xterm, and the console before X starts. It happens in bash and zsh, and happens regardless of if I am using 'screen'. It seems to be a global setting.

I have a setup where I have 2 proxy servers. One is a socks proxy which I wish to use for ALL connections by default. The second proxy is an http proxy which I wish to use for http connections to specific hosts (all on the same domain(s))

Lets assume:

• Socks proxy is hostA:9000
• Http proxy is hostB:8080
• Domain that should go through http proxy is *.foobar.com

Can iptables be configured to do this?

I have a master/slave dns system in place using bind. The master has 2 views, a local and a public. There are 2 slave servers that have these same views (Copied the config file to the slaves and changed them from master to slave). All seemed to be working, inside my network I got the local network dns info, and outside seemed to get the public dns info.

However now that I am offsite I notice that the local-only dns info is whats being provided. I did a check using some online tools to dig my nameservers. The master name server is returning the correct public dns info, however the slaves are returning the local-only info.

Here is a slave's config file:

options {
    directory "/var/bind";
    pid-file "/var/run/named/named.pid";

    listen-on-v6 { ::1; 2002:4b94:5e92::1; 2002:4b94:5e91:2::31; };
    listen-on { 127.0.0.1; 75.148.94.146; 192.168.0.31;  };

    transfer-source-v6 2002:4b94:5e91:2::31;

    allow-query { any; };

    recursion no;
};

logging {
    channel default_log {
        file "/var/log/named/named.log" versions 5 size 50M;
        print-time yes;
        print-severity yes;
        print-category yes;
    };

    category default { default_log; };
    category general { default_log; };
};

view "local" {
    match-clients { 192.168.0.0/16; 127.0.0.1; 2002:4b94:5e91:2::/16; };
    recursion yes;

    zone "." IN {
        type hint;
        file "named.cache";
    };

    zone "open-exodus.net" {
        type slave;
        masters { 2002:4b94:5e91:2::2; };
        file "pri/open-exodus.net.local.fw";
    };

    zone "0.168.192.in-addr.arpa" {
        type slave;
        masters { 2002:4b94:5e91:2::2; };
        file "pri/open-exodus.net.local.rev";
    };

#    zone "2.0.0.0.0.0.0.0.1.9.e.5.4.9.b.4.2.0.0.2.ip6.arpa" {
#        type master;
#        file "pri/open-exodus.net.local.ip6.rev";
#    };
};

view "public" {
    match-clients { any; };
    recursion no;

    zone "open-exodus.net" {
        type slave;
        masters { 2002:4b94:5e91:2::2; };
        file "pri/open-exodus.net.global.fw";
    };
};

I cannot get to the master config file offsite, but it is virtually identical. The only thing I can think of is that the "public" view transfers from the masters private address, could that be the problem? Does it transfer the view for the address, or for the listed file?

I have a server that is a quad-core i-7 with hyperthreading enabled. The kernel recognises this as 8 cpus, as it should. I want to create a couple virtual hosts running on this machine. virt-manager lets me select which cpus are used on which machine. I want to configure this so that I assign both cpus in a hyperthreaded pair to the same virtual machine. This way one machine under heavy load will not effect another virtual machine by sharing a single core due to the hyperthreading. But I do want hyperthreading available to each vm because I am running tasks that involve heavy parallelization.

So, how can I tell which cpus the kernel recognizes are a pair? I would suspect cpu 0 and cpu 1 make a pair, then cpu 2 and cpu 3, and so on, but I am not sure how to test/confirm.