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Linuxϵͳdameon³ÌÐòµÄcore dumpÉèÖÃ

To enable dumps for every daemon:

ulimit -c unlimited >/dev/null 2>&1 (-c maximum size of core files)
ulimit -S -c ${DAEMON_COREFILE_LIMIT:-0} >/dev/null 2>&1

Dump for system
:
DAEMON_COREFILE_LIMIT='unlimited'

The same for every daemon (in /etc/sysconfig/_daemon_): DAEMON_COREFILE_LIMIT='unlimited'

Dump for SUID programs:
echo 1 > /proc/sys/kernel/suid_dumpable

In /etc/sysctl.conf:
kernel.core_uses_pid = 1
kernel.suid_dumpable = 1

and sysctl -p


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ʵսLinux Bluetooth±à³Ì (Æß) SDPЭÒé

Service Discovery Protocol(SDP)ÌṩһÖÖÄÜÁ¦£¬ÈÃÓ¦ÓóÌÐòÓз½·¨·¢ÏÖÄÄÖÖ·þÎñ¿ÉÓÃÒÔ¼°ÕâÖÖ·þÎñµÄÌØÐÔ¡£
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linuxÅäÖÃiptablesºÍsquid

iptables-save > ipt.v1.0
iptables-save > ipt.v1.1
iptables-restore < ipt.v1.0
cp /etc/sysconfig/iptables iptables.raw
service iptables save
ipαװµÄ½Å±¾Îļþiptables_masquerade
#!/bin/bash
//ÉèÖÃlinuxϵͳÔÊÐíip°üµÄת·¢
echo "1" > /proc/sys/net/ipv4/ip_forward
//¼ÓÔØÊµÏÖ ......

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1)¹Ø±Õ·À»ðǽ
#service iptables stop<enter> \\¹Ø±Õ·À»ðǽ
#chkconfig iptables off<enter> \\¹Ø±Õ¿ª»úÆô¶¯
2)IPµØÖ·µÄÅäÖÃ
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#netconfig<enter>  \\ÉèÖÃIPµØÖ·¡¢×ÓÍøÑÚÂë¡¢Íø¹Ø¡¢DNS
#vi /etc/sysconfig/network \\Ö÷»úÃû
#hostname XXX   \\ÉèÖÃÖ÷»úÃû³Æ
#exit  ......

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