我注意到从塞尔维亚 ping 到 Google DNS 和 google.com 大约需要 15 毫秒，但 Google 服务器位于加利福尼亚！http://www.geoiptool.com/en/?IP=173.194.39.110我的专用服务器位于德国，我们的国家很近，但 ping 是 43 毫秒。秘密是什么？我可以以某种方式减少对我的服务器的 ping 吗？
有谁知道一些无需停机即可在 Cent OS（Red Hat Systems）中检查 HDD 故障的好工具。并告诉我如何使用它。
谢谢。
我用命令测试了我的硬盘：
smartctl -t long /dev/sda
我用命令检查了测试的状态：
smartctl -l 自检 /dev/sda
这是输出：
smartctl 5.42 2011-10-20 r3458 [x86_64-linux-2.6.18-348.3.1.el5] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed: read failure 80% 6685 353374938
# 2 Short offline Completed without error 00% 6662 -
# 3 Extended offline Completed: read failure 80% 6658 353374929
# 4 Short offline …我对 Bind 和 Cent OS（绑定的最新版本）有非常烦人的问题。
当我尝试启动它时：
Error in named configuration:
zone localdomain/IN: loaded serial 42
zone localhost/IN: loaded serial 42
zone 0.0.127.in-addr.arpa/IN: loaded serial 1997022700
zone 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 1997022700
zone 255.in-addr.arpa/IN: loaded serial 42
zone 0.in-addr.arpa/IN: loaded serial 42
/var/named/sites/x7-hosting.org.db:3: no current owner name
/var/named/sites/x7-hosting.org.db:4: no current owner name
/var/named/sites/x7-hosting.org.db:11: no current owner name
/var/named/sites/x7-hosting.org.db:12: no current owner name
/var/named/sites/x7-hosting.org.db:13: no current owner name
/var/named/sites/x7-hosting.org.db:14: no current owner name
/var/named/sites/x7-hosting.org.db:15: no current owner name
/var/named/sites/x7-hosting.org.db:16: no current owner name …