81%
30.11.2025
","stage","app","gateway","eth0-ip","eth0-mask","eth1-mac","eth1-ip","eth1-mask" ]
19 system_dict = {}
20
21 f = open(cblr_systems, "r")
22 for line in f:
23 if line.startswith("#"):
24 continue
25 system
81%
30.11.2025
_config
03 bash#> vi sshd_config
04 AllowTcpForwarding no
05 ClientAliveCountMax 3
06 ClientAliveInterval 0
07 Compression delayed
08 LoginGraceTime 60s
09 LogLevel DEBUG3
10 MaxAuthTries 2 ... 3
81%
30.11.2025
posixaccount /etc/dirsrv/schema/10rfc2307.ldif
objectClasses: ( 1.3.6.1.1.1.2.0 NAME 'posixAccount' DESC 'Standard LDAP
objectclass' SUP top AUXILIARY MUST ( cn $ uid $ uidNumber $ gidNumber $
home
80%
30.11.2025
end (Figure 2).
Listing 3
update-dns
01 #!/usr/bin/perl
02
03 use DBI;
04
05 $db_user = "powerdns";
06 $db_passwd = "powerpass";
07
08 $hostname = $ARGV[0] . ".my.org";
09 $ip = $ARGV[1
80%
30.11.2025
= DeltaCloud.new(USER, PASSWORD, URL)
05 summary = Hash.new(0)
06 state = client.instances.inject({}) do |state, inst|
07 state[inst.id] = inst.state
08 summary[inst.state] += 1
09 state
10 end
11
79%
30.11.2025
ID.
Version 3.0 of the cluster suite (in RHEL 6 and Fedora 10 or later), replaces OpenAIS with Corosync [3]. Viewed superficially, not too many changes are seen between the two cluster managers ... 3
79%
30.11.2025
Connection
01 #!/usr/bin/expect
02
03 set host [lindex $argv 0]
04 set timeout 5
05 spawn /usr/bin/ssh aefrisch@$host
06 expect "(yes/no)? " {
07 send "yes\r"
08 }
09 expect "password:"
10 send
78%
30.11.2025
/openvpn/keys/CA.crt
08 cert /etc/openvpn/keys/server.crt
09 key /etc/openvpn/keys/server.key
10 tls-auth /etc/openvpn/keys/tls-auth.key
11
12 server 192.168.1.0 255.255.255.0
13
14 keepalive 10 60
15 comp-lzo
16
17
78%
30.11.2025
costs
157
303
Production downtime costs
0
0
TCO
7,847
3,709
Like sole proprietors, small business don't have their own IT departments ... 3
78%
30.11.2025
.84
132.71
3,127.50
713.77
4.11
mandel
5.55
31.15
65.44
824.68
156.68
5.67
pi_sum
0.74
18.03
1.08
328
