Date: Sun, 25 Mar 2001 19:51:38 +0200 (CEST) From: wevers@cg.nu To: FreeBSD-gnats-submit@freebsd.org Cc: phk@freebsd.org Subject: kern/26078: Localhost Problem's with 20+ jail's Message-ID: <20010325175138.95ABC13173@cg.nu>
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>Number: 26078 >Category: kern >Synopsis: Jails cannot connect to the main server and to there own local services >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Mar 25 10:00:02 PST 2001 >Closed-Date: >Last-Modified: >Originator: Henk Wevers >Release: FreeBSD 4.3-RC i386 >Organization: >Environment: System: FreeBSD bofh.cg.nu 4.3-RC FreeBSD 4.3-RC #0: Sat Mar 24 14:01:40 CET 2001 root@bofh.cg.nu:/usr/obj/usr/src/sys/CG-SERVER i386 CPU: Pentium III/Pentium III Xeon/Celeron (736.46-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x683 Stepping = 3 Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE> real memory = 536788992 (524208K bytes) fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0xa800-0xa81f mem 0xe4800000-0xe48fffff,0xe6000000-0xe6000fff irq 10 at device 14.0 on pci0 fxp0: Ethernet address 00:a0:c9:a6:04:9c >Description: I have a server with 20+ jail's Alway in one or more of the jail's i can not connect to it's own services. like telnet JailIP 25 is not possible(inside the jail), every service is working fine, and i can connect to ssh from outside the machine. Services like php-imap does not work because apache can not connect to the imap server. Again an connection to the imap server from outside the server is no problem. This problem is here sinds Oktober 2000 with FreeBSD 4.x Stable. Before Okt 2000 netstat -nr did give a jail ip the arp adresses to both the fxp device and the lo0 device. With the kernel from Feb 26 2001 some off the arp entry's where gone. I think that those where the jailIP's that did not could connect to there own services. With the kernel of yesterday i did not see any lo0 devices with jailIP's in netstat -nr. The problem is that after every reboot the jail with an "localhost" problem is not the same ipnumber! >How-To-Repeat: >Fix: The workaround is to bind all the jailsIP's to lo0 (thanks to Poul-Henning Kamp) and do a arp -s $jailip $MACfxp0 pub Example: ifconfig lo0 inet alias 10.10.10.224 netmask 255.255.255.255 arp -s 10.10.10.224 00:a0:c9:a6:04:9c pub Henk Wevers The Netherlands >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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