Server down, out of memory?

[zeta]

Salve, ho server dedicato con debian installato dove hosto con plesk pochi siti. Quasi una volta al mese capita che il server va down, quasi sempre bastava un riavvio perchè rispondeva al ping, stavolta si è spento del tutto.

Sono entrato in rescue mode e sto facendo i test hardware, i dischi sono ok e cpu e ram li sta ancora facendo.

Nel log di sistema non vedo messaggi di warning o errore, ma non so leggerli bene i log... dunque non so se c'è qualcosa di strano.
A me sembra di si ma non so come interpretarlo, deduco che forse ha esaurito la memoria.
Sapreste darmi qualche delucidazione e su come prevenire il problema?

Ecco il log relativo all'ultima mezz'ora:

Jul  4 06:26:39 server32 kernel: imklog 3.18.6, log source = /proc/kmsg started.
Jul  4 06:26:39 server32 rsyslogd: [origin software="rsyslogd" swVersion="3.18.6" x-pid="3506" x-info="http://www.rsyslog.com"] restart
Jul  5 06:25:23 server32 kernel: mysqld invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0
Jul  5 06:25:23 server32 kernel: mysqld cpuset=/ mems_allowed=0
Jul  5 06:25:23 server32 kernel: Pid: 3650, comm: mysqld Not tainted 2.6.32.2-xxxx-grs-ipv4-64 #1
Jul  5 06:25:23 server32 kernel: Call Trace:
Jul  5 06:25:23 server32 kernel: [<ffffffff810aedcd>] ? cpuset_print_task_mems_allowed+0x8d/0xa0
Jul  5 06:25:23 server32 kernel: [<ffffffff810c049a>] oom_kill_process+0xba/0x2b0
Jul  5 06:25:23 server32 kernel: [<ffffffff81ad90f8>] ? sctp_snmp_list+0xc7578/0x18af28
Jul  5 06:25:23 server32 kernel: [<ffffffff810c0ae0>] __out_of_memory+0x50/0xb0
Jul  5 06:25:23 server32 kernel: [<ffffffff810c0c67>] out_of_memory+0x127/0x1a0
Jul  5 06:25:23 server32 kernel: [<ffffffff810c554a>] __alloc_pages_nodemask+0x70a/0x730
Jul  5 06:25:23 server32 kernel: [<ffffffff810ecc77>] alloc_pages_current+0x87/0xd0
Jul  5 06:25:23 server32 kernel: [<ffffffff810bddd7>] __page_cache_alloc+0x67/0x70
Jul  5 06:25:23 server32 kernel: [<ffffffff810c6feb>] __do_page_cache_readahead+0xcb/0x200
Jul  5 06:25:23 server32 kernel: [<ffffffff810c713c>] ra_submit+0x1c/0x20
Jul  5 06:25:23 server32 kernel: [<ffffffff810be65e>] filemap_fault+0x41e/0x430
Jul  5 06:25:23 server32 kernel: [<ffffffff810d5513>] __do_fault+0x53/0x500
Jul  5 06:25:23 server32 kernel: [<ffffffff810308ae>] ? apic_timer_interrupt+0xe/0x20
Jul  5 06:25:23 server32 kernel: [<ffffffff810308ae>] ? apic_timer_interrupt+0xe/0x20
Jul  5 06:25:23 server32 kernel: [<ffffffff810d79ed>] handle_mm_fault+0x1ad/0x890
Jul  5 06:25:23 server32 kernel: [<ffffffff81091b03>] ? ktime_get_ts+0xb3/0xe0
Jul  5 06:25:23 server32 kernel: [<ffffffff8110eee1>] ? poll_select_copy_remaining+0xa1/0x270
Jul  5 06:25:23 server32 kernel: [<ffffffff81054dca>] do_page_fault+0x15a/0x310
Jul  5 06:25:23 server32 kernel: [<ffffffff8190275f>] page_fault+0x1f/0x30
Jul  5 06:25:23 server32 kernel: Mem-Info:
Jul  5 06:25:23 server32 kernel: Node 0 DMA per-cpu:
Jul  5 06:25:23 server32 kernel: CPU    0: hi:    0, btch:   1 usd:   0
Jul  5 06:25:23 server32 kernel: CPU    1: hi:    0, btch:   1 usd:   0
Jul  5 06:25:23 server32 kernel: CPU    2: hi:    0, btch:   1 usd:   0
Jul  5 06:25:23 server32 kernel: CPU    3: hi:    0, btch:   1 usd:   0
Jul  5 06:25:23 server32 kernel: CPU    4: hi:    0, btch:   1 usd:   0
Jul  5 06:25:23 server32 kernel: CPU    5: hi:    0, btch:   1 usd:   0
Jul  5 06:25:23 server32 kernel: CPU    6: hi:    0, btch:   1 usd:   0
Jul  5 06:25:23 server32 kernel: CPU    7: hi:    0, btch:   1 usd:   0
Jul  5 06:25:23 server32 kernel: Node 0 DMA32 per-cpu:
Jul  5 06:25:23 server32 kernel: CPU    0: hi:  186, btch:  31 usd: 185
Jul  5 06:25:23 server32 kernel: CPU    1: hi:  186, btch:  31 usd: 147
Jul  5 06:25:23 server32 kernel: CPU    2: hi:  186, btch:  31 usd: 157
Jul  5 06:25:23 server32 kernel: CPU    3: hi:  186, btch:  31 usd:  65
Jul  5 06:25:23 server32 kernel: CPU    4: hi:  186, btch:  31 usd: 172
Jul  5 06:25:23 server32 kernel: CPU    5: hi:  186, btch:  31 usd: 135
Jul  5 06:25:23 server32 kernel: CPU    6: hi:  186, btch:  31 usd: 137
Jul  5 06:25:23 server32 kernel: CPU    7: hi:  186, btch:  31 usd: 180
Jul  5 06:25:23 server32 kernel: Node 0 Normal per-cpu:
Jul  5 06:25:23 server32 kernel: CPU    0: hi:  186, btch:  31 usd: 113
Jul  5 06:25:23 server32 kernel: CPU    1: hi:  186, btch:  31 usd: 105
Jul  5 06:25:23 server32 kernel: CPU    2: hi:  186, btch:  31 usd:  35
Jul  5 06:25:23 server32 kernel: CPU    3: hi:  186, btch:  31 usd:  62
Jul  5 06:25:23 server32 kernel: CPU    4: hi:  186, btch:  31 usd: 157
Jul  5 06:25:23 server32 kernel: CPU    5: hi:  186, btch:  31 usd:  57
Jul  5 06:25:23 server32 kernel: CPU    6: hi:  186, btch:  31 usd: 110
Jul  5 06:25:23 server32 kernel: CPU    7: hi:  186, btch:  31 usd: 125
Jul  5 06:25:23 server32 kernel: active_anon:1533069 inactive_anon:300240 isolated_anon:0
Jul  5 06:25:23 server32 kernel: active_file:169 inactive_file:286 isolated_file:0
Jul  5 06:25:23 server32 kernel: unevictable:0 dirty:0 writeback:0 unstable:0
Jul  5 06:25:23 server32 kernel: free:11999 slab_reclaimable:5189 slab_unreclaimable:60308
Jul  5 06:25:23 server32 kernel: mapped:187578 shmem:657663 pagetables:107545 bounce:0
Jul  5 06:25:23 server32 kernel: Node 0 DMA free:15884kB min:20kB low:24kB high:28kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15280kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
Jul  5 06:25:23 server32 kernel: lowmem_reserve[]: 0 2991 8041 8041
Jul  5 06:25:23 server32 kernel: Node 0 DMA32 free:24508kB min:4264kB low:5328kB high:6396kB active_anon:2159976kB inactive_anon:538788kB active_file:140kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3063520kB mlocked:0kB dirty:0kB writeback:0kB mapped:738368kB shmem:986876kB slab_reclaimable:5420kB slab_unreclaimable:37284kB kernel_stack:4656kB pagetables:131788kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:78 all_unreclaimable? no
Jul  5 06:25:23 server32 kernel: lowmem_reserve[]: 0 0 5050 5050
Jul  5 06:25:23 server32 kernel: Node 0 Normal free:7604kB min:7200kB low:9000kB high:10800kB active_anon:3972300kB inactive_anon:662172kB active_file:536kB inactive_file:1144kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5171200kB mlocked:0kB dirty:0kB writeback:0kB mapped:11944kB shmem:1643776kB slab_reclaimable:15336kB slab_unreclaimable:203948kB kernel_stack:11112kB pagetables:298392kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:128 all_unreclaimable? no
Jul  5 06:25:23 server32 kernel: lowmem_reserve[]: 0 0 0 0
Jul  5 06:25:23 server32 kernel: Node 0 DMA: 1*4kB 1*8kB 2*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 3*4096kB = 15884kB
Jul  5 06:25:23 server32 kernel: Node 0 DMA32: 4093*4kB 3*8kB 1*16kB 3*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 1*4096kB = 24508kB
Jul  5 06:25:23 server32 kernel: Node 0 Normal: 981*4kB 4*8kB 4*16kB 2*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 7604kB
Jul  5 06:25:23 server32 kernel: 659159 total pagecache pages
Jul  5 06:25:23 server32 kernel: 972 pages in swap cache
Jul  5 06:25:23 server32 kernel: Swap cache stats: add 275011, delete 274039, find 1039536/1040660
Jul  5 06:25:23 server32 kernel: Free swap  = 0kB
Jul  5 06:25:23 server32 kernel: Total swap = 1051056kB
Jul  5 06:25:23 server32 kernel: 2097136 pages RAM
Jul  5 06:25:23 server32 kernel: 51371 pages reserved
Jul  5 06:25:23 server32 kernel: 801143 pages shared
Jul  5 06:25:23 server32 kernel: 1467723 pages non-shared
Jul  5 06:26:09 server32 kernel: imklog 3.18.6, log source = /proc/kmsg started.
Jul  5 06:26:09 server32 rsyslogd: [origin software="rsyslogd" swVersion="3.18.6" x-pid="3506" x-info="http://www.rsyslog.com"] restart
Jul  6 06:25:14 server32 kernel: postgres invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0
Jul  6 06:25:14 server32 kernel: postgres cpuset=/ mems_allowed=0
Jul  6 06:25:14 server32 kernel: Pid: 12422, comm: postgres Not tainted 2.6.32.2-xxxx-grs-ipv4-64 #1
Jul  6 06:25:14 server32 kernel: Call Trace:
Jul  6 06:25:14 server32 kernel: [<ffffffff810aedcd>] ? cpuset_print_task_mems_allowed+0x8d/0xa0
Jul  6 06:25:14 server32 kernel: [<ffffffff810c049a>] oom_kill_process+0xba/0x2b0
Jul  6 06:25:14 server32 kernel: [<ffffffff81ad90f8>] ? sctp_snmp_list+0xc7578/0x18af28
Jul  6 06:25:14 server32 kernel: [<ffffffff810c0ae0>] __out_of_memory+0x50/0xb0
Jul  6 06:25:14 server32 kernel: [<ffffffff810c0c67>] out_of_memory+0x127/0x1a0
Jul  6 06:25:14 server32 kernel: [<ffffffff810c554a>] __alloc_pages_nodemask+0x70a/0x730
Jul  6 06:25:14 server32 kernel: [<ffffffff810ecc77>] alloc_pages_current+0x87/0xd0
Jul  6 06:25:14 server32 kernel: [<ffffffff810bddd7>] __page_cache_alloc+0x67/0x70
Jul  6 06:25:14 server32 kernel: [<ffffffff810c6feb>] __do_page_cache_readahead+0xcb/0x200
Jul  6 06:25:14 server32 kernel: [<ffffffff810c713c>] ra_submit+0x1c/0x20
Jul  6 06:25:14 server32 kernel: [<ffffffff810c7355>] ondemand_readahead+0x115/0x240
Jul  6 06:25:14 server32 kernel: [<ffffffff810c7555>] page_cache_sync_readahead+0x25/0x30
Jul  6 06:25:14 server32 kernel: [<ffffffff810be5de>] filemap_fault+0x39e/0x430
Jul  6 06:25:14 server32 kernel: [<ffffffff810fa195>] ? mem_cgroup_update_mapped_file_stat+0x25/0x90
Jul  6 06:25:14 server32 kernel: [<ffffffff810d5513>] __do_fault+0x53/0x500
Jul  6 06:25:14 server32 kernel: [<ffffffff810308ae>] ? apic_timer_interrupt+0xe/0x20
Jul  6 06:25:14 server32 kernel: [<ffffffff810d79ed>] handle_mm_fault+0x1ad/0x890
Jul  6 06:25:14 server32 kernel: [<ffffffff81091b03>] ? ktime_get_ts+0xb3/0xe0
Jul  6 06:25:14 server32 kernel: [<ffffffff8110eee1>] ? poll_select_copy_remaining+0xa1/0x270
Jul  6 06:25:14 server32 kernel: [<ffffffff81054dca>] do_page_fault+0x15a/0x310
Jul  6 06:25:14 server32 kernel: [<ffffffff8190275f>] page_fault+0x1f/0x30
Jul  6 06:25:14 server32 kernel: Mem-Info:
Jul  6 06:25:14 server32 kernel: Node 0 DMA per-cpu:
Jul  6 06:25:14 server32 kernel: CPU    0: hi:    0, btch:   1 usd:   0
Jul  6 06:25:14 server32 kernel: CPU    1: hi:    0, btch:   1 usd:   0
Jul  6 06:25:14 server32 kernel: CPU    2: hi:    0, btch:   1 usd:   0
Jul  6 06:25:14 server32 kernel: CPU    3: hi:    0, btch:   1 usd:   0
Jul  6 06:25:14 server32 kernel: CPU    4: hi:    0, btch:   1 usd:   0
Jul  6 06:25:14 server32 kernel: CPU    5: hi:    0, btch:   1 usd:   0
Jul  6 06:25:14 server32 kernel: CPU    6: hi:    0, btch:   1 usd:   0
Jul  6 06:25:14 server32 kernel: CPU    7: hi:    0, btch:   1 usd:   0
Jul  6 06:25:14 server32 kernel: Node 0 DMA32 per-cpu:
Jul  6 06:25:14 server32 kernel: CPU    0: hi:  186, btch:  31 usd: 160
Jul  6 06:25:14 server32 kernel: CPU    1: hi:  186, btch:  31 usd: 164
Jul  6 06:25:14 server32 kernel: CPU    2: hi:  186, btch:  31 usd: 164
Jul  6 06:25:14 server32 kernel: CPU    3: hi:  186, btch:  31 usd: 121
Jul  6 06:25:14 server32 kernel: CPU    4: hi:  186, btch:  31 usd: 173
Jul  6 06:25:14 server32 kernel: CPU    5: hi:  186, btch:  31 usd: 165
Jul  6 06:25:14 server32 kernel: CPU    6: hi:  186, btch:  31 usd:  50
Jul  6 06:25:14 server32 kernel: CPU    7: hi:  186, btch:  31 usd:  80
Jul  6 06:25:14 server32 kernel: Node 0 Normal per-cpu:
Jul  6 06:25:14 server32 kernel: CPU    0: hi:  186, btch:  31 usd: 179
Jul  6 06:25:14 server32 kernel: CPU    1: hi:  186, btch:  31 usd: 177
Jul  6 06:25:14 server32 kernel: CPU    2: hi:  186, btch:  31 usd:  92
Jul  6 06:25:14 server32 kernel: CPU    3: hi:  186, btch:  31 usd:  87
Jul  6 06:25:14 server32 kernel: CPU    4: hi:  186, btch:  31 usd: 164
Jul  6 06:25:14 server32 kernel: CPU    5: hi:  186, btch:  31 usd: 178
Jul  6 06:25:14 server32 kernel: CPU    6: hi:  186, btch:  31 usd:  64
Jul  6 06:25:14 server32 kernel: CPU    7: hi:  186, btch:  31 usd:  79
Jul  6 06:25:14 server32 kernel: active_anon:1533009 inactive_anon:300368 isolated_anon:0
Jul  6 06:25:14 server32 kernel: active_file:121 inactive_file:90 isolated_file:0
Jul  6 06:25:14 server32 kernel: unevictable:0 dirty:10 writeback:50 unstable:0
Jul  6 06:25:14 server32 kernel: free:11783 slab_reclaimable:5236 slab_unreclaimable:60366
Jul  6 06:25:14 server32 kernel: mapped:187381 shmem:657661 pagetables:107544 bounce:0
Jul  6 06:25:14 server32 kernel: Node 0 DMA free:15884kB min:20kB low:24kB high:28kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15280kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
Jul  6 06:25:14 server32 kernel: lowmem_reserve[]: 0 2991 8041 8041
Jul  6 06:25:14 server32 kernel: Node 0 DMA32 free:24256kB min:4264kB low:5328kB high:6396kB active_anon:2158472kB inactive_anon:539052kB active_file:196kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3063520kB mlocked:0kB dirty:0kB writeback:104kB mapped:737516kB shmem:986868kB slab_reclaimable:5664kB slab_unreclaimable:37248kB kernel_stack:4712kB pagetables:132704kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:4 all_unreclaimable? no
Jul  6 06:25:14 server32 kernel: lowmem_reserve[]: 0 0 5050 5050
Jul  6 06:25:14 server32 kernel: Node 0 Normal free:6992kB min:7200kB low:9000kB high:10800kB active_anon:3973564kB inactive_anon:662420kB active_file:288kB inactive_file:376kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5171200kB mlocked:0kB dirty:40kB writeback:96kB mapped:12008kB shmem:1643776kB slab_reclaimable:15280kB slab_unreclaimable:204216kB kernel_stack:11072kB pagetables:297472kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:822 all_unreclaimable? no
Jul  6 06:25:14 server32 kernel: lowmem_reserve[]: 0 0 0 0
Jul  6 06:25:14 server32 kernel: Node 0 DMA: 1*4kB 1*8kB 2*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 3*4096kB = 15884kB
Jul  6 06:25:14 server32 kernel: Node 0 DMA32: 4090*4kB 4*8kB 1*16kB 3*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 1*4096kB = 24504kB
Jul  6 06:25:14 server32 kernel: Node 0 Normal: 857*4kB 5*8kB 4*16kB 2*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 7116kB
Jul  6 06:25:14 server32 kernel: 658928 total pagecache pages
Jul  6 06:25:14 server32 kernel: 952 pages in swap cache
Jul  6 06:25:14 server32 kernel: Swap cache stats: add 275014, delete 274062, find 1076803/1077927
Jul  6 06:25:14 server32 kernel: Free swap  = 0kB
Jul  6 06:25:14 server32 kernel: Total swap = 1051056kB
Jul  6 06:25:14 server32 kernel: 2097136 pages RAM
Jul  6 06:25:14 server32 kernel: 51371 pages reserved
Jul  6 06:25:14 server32 kernel: 801707 pages shared
Jul  6 06:25:14 server32 kernel: 1467766 pages non-shared
Jul  6 06:26:04 server32 kernel: postgres invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0
Jul  6 06:26:04 server32 kernel: postgres cpuset=/ mems_allowed=0
Jul  6 06:26:04 server32 kernel: Pid: 12425, comm: postgres Not tainted 2.6.32.2-xxxx-grs-ipv4-64 #1
Jul  6 06:26:04 server32 kernel: Call Trace:
Jul  6 06:26:04 server32 kernel: [<ffffffff810aedcd>] ? cpuset_print_task_mems_allowed+0x8d/0xa0
Jul  6 06:26:04 server32 kernel: [<ffffffff810c049a>] oom_kill_process+0xba/0x2b0
Jul  6 06:26:04 server32 kernel: [<ffffffff81ad90f8>] ? sctp_snmp_list+0xc7578/0x18af28
Jul  6 06:26:04 server32 kernel: [<ffffffff810c0ae0>] __out_of_memory+0x50/0xb0
Jul  6 06:26:04 server32 kernel: [<ffffffff810c0c67>] out_of_memory+0x127/0x1a0
Jul  6 06:26:04 server32 kernel: [<ffffffff810c554a>] __alloc_pages_nodemask+0x70a/0x730
Jul  6 06:26:04 server32 kernel: [<ffffffff810ecc77>] alloc_pages_current+0x87/0xd0
Jul  6 06:26:04 server32 kernel: [<ffffffff810bddd7>] __page_cache_alloc+0x67/0x70
Jul  6 06:26:04 server32 kernel: [<ffffffff810be3dd>] filemap_fault+0x19d/0x430
Jul  6 06:26:04 server32 kernel: [<ffffffff810fa195>] ? mem_cgroup_update_mapped_file_stat+0x25/0x90
Jul  6 06:26:04 server32 kernel: [<ffffffff810d5513>] __do_fault+0x53/0x500
Jul  6 06:26:04 server32 kernel: [<ffffffff810d79ed>] handle_mm_fault+0x1ad/0x890
Jul  6 06:26:04 server32 kernel: [<ffffffff810e5ff5>] ? free_pages_and_swap_cache+0xa5/0xd0
Jul  6 06:26:04 server32 kernel: [<ffffffff81091b03>] ? ktime_get_ts+0xb3/0xe0
Jul  6 06:26:04 server32 kernel: [<ffffffff81054dca>] do_page_fault+0x15a/0x310
Jul  6 06:26:04 server32 kernel: [<ffffffff8190275f>] page_fault+0x1f/0x30

[zeta]

Scusate il log giusto prima del down è questo:

ul  6 09:37:19 server32 kernel: CPU    6: hi:  186, btch:  31 usd:  64
Jul  6 09:37:19 server32 kernel: CPU    7: hi:  186, btch:  31 usd:  36
Jul  6 09:37:19 server32 kernel: active_anon:1534666 inactive_anon:300963 isolated_anon:0
Jul  6 09:37:19 server32 kernel: active_file:102 inactive_file:155 isolated_file:63
Jul  6 09:37:19 server32 kernel: unevictable:0 dirty:0 writeback:0 unstable:0
Jul  6 09:37:19 server32 kernel: free:11876 slab_reclaimable:5158 slab_unreclaimable:60362
Jul  6 09:37:19 server32 kernel: mapped:187345 shmem:667721 pagetables:105841 bounce:0
Jul  6 09:37:19 server32 kernel: Node 0 DMA free:15884kB min:20kB low:24kB high:28kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15280kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
Jul  6 09:37:19 server32 kernel: lowmem_reserve[]: 0 2991 8041 8041
Jul  6 09:37:19 server32 kernel: Node 0 DMA32 free:24232kB min:4264kB low:5328kB high:6396kB active_anon:2161124kB inactive_anon:540604kB active_file:160kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3063520kB mlocked:0kB dirty:0kB writeback:0kB mapped:737052kB shmem:996496kB slab_reclaimable:5380kB slab_unreclaimable:37064kB kernel_stack:4544kB pagetables:131040kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:1 all_unreclaimable? no
Jul  6 09:37:19 server32 kernel: lowmem_reserve[]: 0 0 5050 5050
Jul  6 09:37:19 server32 kernel: Node 0 Normal free:7388kB min:7200kB low:9000kB high:10800kB active_anon:3977540kB inactive_anon:663248kB active_file:248kB inactive_file:704kB unevictable:0kB isolated(anon):0kB isolated(file):252kB present:5171200kB mlocked:0kB dirty:0kB writeback:0kB mapped:12328kB shmem:1674388kB slab_reclaimable:15252kB slab_unreclaimable:204384kB kernel_stack:11064kB pagetables:292324kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:1856 all_unreclaimable? no
Jul  6 09:37:19 server32 kernel: lowmem_reserve[]: 0 0 0 0
Jul  6 09:37:19 server32 kernel: Node 0 DMA: 1*4kB 1*8kB 2*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 3*4096kB = 15884kB
Jul  6 09:37:19 server32 kernel: Node 0 DMA32: 4020*4kB 1*8kB 1*16kB 2*32kB 2*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 1*4096kB = 24232kB
Jul  6 09:37:19 server32 kernel: Node 0 Normal: 852*4kB 17*8kB 4*16kB 4*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 7256kB
Jul  6 09:37:19 server32 kernel: 669085 total pagecache pages
Jul  6 09:37:19 server32 kernel: 981 pages in swap cache
Jul  6 09:37:19 server32 kernel: Swap cache stats: add 275139, delete 274158, find 1084725/1085857
Jul  6 09:37:19 server32 kernel: Free swap  = 0kB
Jul  6 09:37:19 server32 kernel: Total swap = 1051056kB
Jul  6 09:37:19 server32 kernel: 2097136 pages RAM
Jul  6 09:37:19 server32 kernel: 51371 pages reserved
Jul  6 09:37:19 server32 kernel: 780874 pages shared
Jul  6 09:37:19 server32 kernel: 1463712 pages non-shared
Jul  6 09:37:19 server32 kernel: Out of memory: kill process 30978 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:19 server32 kernel: Killed process 30978 (sw-engine-cgi)
Jul  6 09:37:19 server32 kernel: sw-engine-cgi invoked oom-killer: gfp_mask=0x200da, order=0, oom_adj=0
Jul  6 09:37:19 server32 kernel: sw-engine-cgi cpuset=/ mems_allowed=0
Jul  6 09:37:19 server32 kernel: Pid: 31021, comm: sw-engine-cgi Not tainted 2.6.32.2-xxxx-grs-ipv4-64 #1
Jul  6 09:37:19 server32 kernel: Call Trace:
Jul  6 09:37:19 server32 kernel: [<ffffffff810aedcd>] ? cpuset_print_task_mems_allowed+0x8d/0xa0
Jul  6 09:37:19 server32 kernel: [<ffffffff810c049a>] oom_kill_process+0xba/0x2b0
Jul  6 09:37:19 server32 kernel: [<ffffffff81ad90f8>] ? sctp_snmp_list+0xc7578/0x18af28
Jul  6 09:37:19 server32 kernel: [<ffffffff810c0ae0>] __out_of_memory+0x50/0xb0
Jul  6 09:37:19 server32 kernel: [<ffffffff810c0c67>] out_of_memory+0x127/0x1a0
Jul  6 09:37:19 server32 kernel: [<ffffffff810c554a>] __alloc_pages_nodemask+0x70a/0x730
Jul  6 09:37:19 server32 kernel: [<ffffffff810ecd70>] alloc_page_vma+0xb0/0x1e0
Jul  6 09:37:19 server32 kernel: [<ffffffff810d5e6b>] do_wp_page+0x1db/0x820
Jul  6 09:37:19 server32 kernel: [<ffffffff810d7e50>] handle_mm_fault+0x610/0x890
Jul  6 09:37:19 server32 kernel: [<ffffffff81054dca>] do_page_fault+0x15a/0x310
Jul  6 09:37:19 server32 kernel: [<ffffffff8190275f>] page_fault+0x1f/0x30
Jul  6 09:37:19 server32 kernel: Mem-Info:
Jul  6 09:37:19 server32 kernel: Node 0 DMA per-cpu:
Jul  6 09:37:19 server32 kernel: CPU    0: hi:    0, btch:   1 usd:   0
Jul  6 09:37:19 server32 kernel: CPU    1: hi:    0, btch:   1 usd:   0
Jul  6 09:37:19 server32 kernel: CPU    2: hi:    0, btch:   1 usd:   0
Jul  6 09:37:19 server32 kernel: CPU    3: hi:    0, btch:   1 usd:   0
Jul  6 09:37:19 server32 kernel: CPU    4: hi:    0, btch:   1 usd:   0
Jul  6 09:37:19 server32 kernel: CPU    5: hi:    0, btch:   1 usd:   0
Jul  6 09:37:19 server32 kernel: CPU    6: hi:    0, btch:   1 usd:   0
Jul  6 09:37:19 server32 kernel: CPU    7: hi:    0, btch:   1 usd:   0
Jul  6 09:37:19 server32 kernel: Node 0 DMA32 per-cpu:
Jul  6 09:37:19 server32 kernel: CPU    0: hi:  186, btch:  31 usd: 178
Jul  6 09:37:19 server32 kernel: CPU    1: hi:  186, btch:  31 usd: 179
Jul  6 09:37:19 server32 kernel: CPU    2: hi:  186, btch:  31 usd: 120
Jul  6 09:37:19 server32 kernel: CPU    3: hi:  186, btch:  31 usd:  90
Jul  6 09:37:19 server32 kernel: CPU    4: hi:  186, btch:  31 usd:  68
Jul  6 09:37:19 server32 kernel: CPU    5: hi:  186, btch:  31 usd:  27
Jul  6 09:37:19 server32 kernel: CPU    6: hi:  186, btch:  31 usd:   1
Jul  6 09:37:19 server32 kernel: CPU    7: hi:  186, btch:  31 usd: 138
Jul  6 09:37:19 server32 kernel: Node 0 Normal per-cpu:
Jul  6 09:37:19 server32 kernel: CPU    0: hi:  186, btch:  31 usd: 107
Jul  6 09:37:19 server32 kernel: CPU    1: hi:  186, btch:  31 usd: 166
Jul  6 09:37:19 server32 kernel: CPU    2: hi:  186, btch:  31 usd:  84
Jul  6 09:37:19 server32 kernel: CPU    3: hi:  186, btch:  31 usd: 120
Jul  6 09:37:19 server32 kernel: CPU    4: hi:  186, btch:  31 usd: 166
Jul  6 09:37:19 server32 kernel: CPU    5: hi:  186, btch:  31 usd: 158
Jul  6 09:37:19 server32 kernel: CPU    6: hi:  186, btch:  31 usd:  87
Jul  6 09:37:19 server32 kernel: CPU    7: hi:  186, btch:  31 usd: 128
Jul  6 09:37:19 server32 kernel: active_anon:1534666 inactive_anon:300963 isolated_anon:0
Jul  6 09:37:19 server32 kernel: active_file:121 inactive_file:88 isolated_file:63
Jul  6 09:37:19 server32 kernel: unevictable:0 dirty:0 writeback:0 unstable:0
Jul  6 09:37:19 server32 kernel: free:11878 slab_reclaimable:5158 slab_unreclaimable:60362
Jul  6 09:37:19 server32 kernel: mapped:187345 shmem:667721 pagetables:105756 bounce:0
Jul  6 09:37:19 server32 kernel: Node 0 DMA free:15884kB min:20kB low:24kB high:28kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15280kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
Jul  6 09:37:19 server32 kernel: lowmem_reserve[]: 0 2991 8041 8041
Jul  6 09:37:19 server32 kernel: Node 0 DMA32 free:24232kB min:4264kB low:5328kB high:6396kB active_anon:2161124kB inactive_anon:540604kB active_file:160kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3063520kB mlocked:0kB dirty:0kB writeback:0kB mapped:737052kB shmem:996496kB slab_reclaimable:5380kB slab_unreclaimable:37064kB kernel_stack:4544kB pagetables:131040kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:1 all_unreclaimable? no
Jul  6 09:37:19 server32 kernel: lowmem_reserve[]: 0 0 5050 5050
Jul  6 09:37:19 server32 kernel: Node 0 Normal free:7396kB min:7200kB low:9000kB high:10800kB active_anon:3977540kB inactive_anon:663248kB active_file:324kB inactive_file:436kB unevictable:0kB isolated(anon):0kB isolated(file):252kB present:5171200kB mlocked:0kB dirty:0kB writeback:0kB mapped:12328kB shmem:1674388kB slab_reclaimable:15252kB slab_unreclaimable:204384kB kernel_stack:11064kB pagetables:291984kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
Jul  6 09:37:19 server32 kernel: lowmem_reserve[]: 0 0 0 0
Jul  6 09:37:19 server32 kernel: Node 0 DMA: 1*4kB 1*8kB 2*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 3*4096kB = 15884kB
Jul  6 09:37:19 server32 kernel: Node 0 DMA32: 4020*4kB 1*8kB 1*16kB 2*32kB 2*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 1*4096kB = 24232kB
Jul  6 09:37:19 server32 kernel: Node 0 Normal: 875*4kB 23*8kB 4*16kB 4*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 7396kB
Jul  6 09:37:19 server32 kernel: 669000 total pagecache pages
Jul  6 09:37:19 server32 kernel: 981 pages in swap cache
Jul  6 09:37:19 server32 kernel: Swap cache stats: add 275139, delete 274158, find 1084725/1085857
Jul  6 09:37:19 server32 kernel: Free swap  = 0kB
Jul  6 09:37:19 server32 kernel: Total swap = 1051056kB
Jul  6 09:37:19 server32 kernel: 2097136 pages RAM
Jul  6 09:37:19 server32 kernel: 51371 pages reserved
Jul  6 09:37:19 server32 kernel: 780139 pages shared
Jul  6 09:37:19 server32 kernel: 1463613 pages non-shared
Jul  6 09:37:19 server32 kernel: Out of memory: kill process 30983 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:19 server32 kernel: Killed process 30983 (sw-engine-cgi)
Jul  6 09:37:19 server32 kernel: Out of memory: kill process 31023 (apache2) score 54759 or a child
Jul  6 09:37:19 server32 kernel: Killed process 31023 (apache2)
Jul  6 09:37:19 server32 kernel: Out of memory: kill process 31024 (apache2) score 54759 or a child
Jul  6 09:37:19 server32 kernel: Killed process 31024 (apache2)
Jul  6 09:37:19 server32 kernel: Out of memory: kill process 31025 (apache2) score 54759 or a child
Jul  6 09:37:19 server32 kernel: Killed process 31025 (apache2)
Jul  6 09:37:19 server32 kernel: Out of memory: kill process 30984 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:19 server32 kernel: Killed process 30984 (sw-engine-cgi)
Jul  6 09:37:19 server32 kernel: Out of memory: kill process 30985 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:19 server32 kernel: Killed process 30985 (sw-engine-cgi)
Jul  6 09:37:19 server32 kernel: Out of memory: kill process 30986 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:19 server32 kernel: Killed process 30986 (sw-engine-cgi)
Jul  6 09:37:19 server32 kernel: Out of memory: kill process 30987 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:19 server32 kernel: Killed process 30987 (sw-engine-cgi)
Jul  6 09:37:20 server32 kernel: Out of memory: kill process 30988 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:20 server32 kernel: Killed process 30988 (sw-engine-cgi)
Jul  6 09:37:20 server32 kernel: Out of memory: kill process 30989 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:20 server32 kernel: Killed process 30989 (sw-engine-cgi)
Jul  6 09:37:20 server32 kernel: Out of memory: kill process 31019 (apache2) score 54759 or a child
Jul  6 09:37:20 server32 kernel: Killed process 31019 (apache2)
Jul  6 09:37:20 server32 kernel: Out of memory: kill process 30990 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:20 server32 kernel: Killed process 30990 (sw-engine-cgi)
Jul  6 09:37:20 server32 kernel: Out of memory: kill process 30991 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:20 server32 kernel: Killed process 30991 (sw-engine-cgi)
Jul  6 09:37:20 server32 kernel: Out of memory: kill process 30992 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:20 server32 kernel: Killed process 30992 (sw-engine-cgi)
Jul  6 09:37:20 server32 kernel: Out of memory: kill process 30993 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:20 server32 kernel: Killed process 30993 (sw-engine-cgi)
Jul  6 09:37:20 server32 kernel: Out of memory: kill process 30994 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:20 server32 kernel: Killed process 30994 (sw-engine-cgi)
Jul  6 09:37:20 server32 kernel: Out of memory: kill process 30995 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:20 server32 kernel: Killed process 30995 (sw-engine-cgi)
Jul  6 09:37:20 server32 kernel: Out of memory: kill process 30996 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:20 server32 kernel: Killed process 30996 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 30997 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 30997 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 30998 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 30998 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 30999 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 30999 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 31000 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 31000 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 31001 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 31001 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 31002 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 31002 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 31004 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 31004 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 31006 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 31006 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 31008 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 31008 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 31009 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 31009 (sw-engine-cgi)
Jul  6 09:37:21 server32 kernel: Out of memory: kill process 31010 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:21 server32 kernel: Killed process 31010 (sw-engine-cgi)
Jul  6 09:37:22 server32 kernel: Out of memory: kill process 31011 (sw-engine-cgi) score 42463 or a child
Jul  6 09:37:23 server32 kernel: Killed process 31011 (sw-engine-cgi)

[guest]

Li è scritto in maniera non chiara, ma chiarissima, quale sia il problema e la conseguente risoluzione.

Ti suggerisco l'acquisto di un servizio di assistenza sistemistica, risolvere questo problema richiede un millisecondo di tempo e se non riesci ad identificare questa problematica, non sei in grado di amministrare un server, purtroppo.

[zeta]

grazie ma è semplice dare una risposta come la tua.
Io sono qui per imparare, ho sempre fatto da solo, come chi si ripara da solo la sua moto, quindi se sai la risposta sarebbe utile a me e agli altri che potrebbero leggere che tu la dassi.
Se sei venuto solo a scrivere quello che hai scritto, allora ti prego risparmiami altri tuoi messaggi.

[guest]

Be, per guidare la moto devi andare a scuola guida, non puoi prendere la moto, correre in strada e poi lamentarti se ti suonano perchè giri senza freccia o se ti fanno la multa perchè hai superato un limite di velocità.

Comunque sia, io ti ho dato anche la soluzione, se leggi bene. Ho scritto che nel log postato il problema è indicato in maniera chiarissima, e data la natura del problema, anche la sua soluzione è chiarissima.

Aggiungo anche una cosa: metti mano al portafoglio, la soluzione in questo caso richiede un acquisto.

[Rebel]

Jul 6 09:37:19 server32 kernel: Free swap = 0kB
Jul 6 09:37:19 server32 kernel: Total swap = 1051056kB

Credo sia sufficiente. Oltre agli altri mille mila out of memory.

Guest e' stato fin troppo gentile.

[zeta]

Infatti non farei quello che faccio se non avessi studiato per farlo, ma non puoi pretendere di riparare la moto il giorno dopo che hai studiato, passa del tempo per imparare tutto ciò di cui hai bisogno per farlo bene.

Io di cause ne vedo diverse, il punto è questo...
Credo sicuramente che i limiti siano troppo alti sul mysql, apache e php e infatti li ho già ridotti abbassando MaxSpareServers a 10, abbassa il timeout a 60, disattivando keepalive su apache.

Poi ho il dubbio sullo swap:
Free swap = 0kB
Total swap = 1051056kB
Lo swap da 1 gb è troppo piccolo credo, devo ingrandirlo? il fatto che ne è rimasto 0 kb libero è la possibile causa?

[zeta]

rebel stavo giusto rispondendo prima che tu rispondessi, e hai confermato i miei dubbi.
Cmq evidentemente qui non permettete, o meglio tollerate, per interessi sicuramente personali ed economici, di aiutare e far imparare gente meno esperta. E non venite a dire che non è così, le vostre firme parlano chiaro.

[guest]

se termini lo swap è perchè la ram di sistema è troppo poca. Questo sempre e comunque.
Compra più ram.

se aumenti solo lo swap, il sistema resterà vivo qualche secondo in più ma con prestazioni che rasenterebbero il ridicolo. Lo swap non va inteso come sostituto della ram ma solo e soltanto come una sorta di buffer che utilizza linux per 'archiviare' delle pagine di mmeoria non più in uso o senza frequenti accessi.

se hai 10 programmi che richiedono, tutti e 10, 2GB di ram e tu hai solo 1GB di ram + 1GB di swap, il sistema sarà talmente lento da essere inutilizzabiile, perchè puntualmente metà di tali programmi dovrà usare lo swap come ram (ed i dischi sono di alcune centinaia di ordini di grandezza più lenti della ram)

Se aumenti lo swap, non cambierebbe nulla. Se aumenti la ram, invece, risolvi il problema (ecco il perchè ti ho detto di dover mettere mano al portafoglio) perchè le applicazioni che prima swappavano ora trovano spazio in ram.

[guest]

rebel stavo giusto rispondendo prima che tu rispondessi, e hai confermato i miei dubbi.
Cmq evidentemente qui non permettete, o meglio tollerate, per interessi sicuramente personali ed economici, di aiutare e far imparare gente meno esperta. E non venite a dire che non è così, le vostre firme parlano chiaro.

A dire il vero, io ti ho dato la soluzione, se poi te non vuoi leggere i log, significa che non vuoi imparare.

Ti ho scritto che la problematica è indicata chiaramente dai log.

Out of memory

non è difficile da capire, anche per chi è alle prime armi.
Cosa si fa quando si legge "out of memory" ? Si compra della ram.
Semplice.

Però, i log li devi leggere.

Diciamo pure che a te non interessa imparare (altrimenti avresti letto il log, cosa che sicuramente non hai fatto) ma ti interessa sapere come rimettere in piedi il server senza pagare il supporto sistemistico. Le prove si fanno in locale, cosa che tu non stai facendo altrimenti non avresti Plesk e non hosteresti dei siti.

E siccome il supporto sistemistico si paga, sopratutto quando è diretto a server su cui ci sono siti veri, non vedo perchè dovremmo darti aiuto gratuitamente.

Se vuoi imparare installa Virtualbox, metti su una debian e fai tutte le prove che vuoi, e vedrai che anche gli aiuti arriveranno, in caso di problemi.

[zeta]

grazie per la delucidazione... ma io sul server ho solo plesk, con tutti i suoi rispettivi servizi attivi.
Com'è possibile che mi finisca 8 gb di ram da solo quando anni fa hostavo hub di dc++ con 1 gb di ram??
Devo agire pesantemente sui limiti dei servizi allora

[guest]

Se hai 8GB, hai qualche problema a livello di configurazione.

[zeta]

No guarda, io non voglio soluzioni, e come penso di averti fatto capire io il log l'ho letto e ho anche intuito il problema, cercavo conferme e aiuti sul da farsi. E in ogni caso, questo forum è gratuito, è nato per discutere su hosting, questa sezione è dedicata ad aiuti su hosting. Qui si chiede aiuto e si risponde gratuitamente, sennò sarebbe stato a pagamento. Inoltre non ti sto chiedendo di andare tu ad agire sul server, ma dalle vostre indicazioni il lavoro lo faccio io.
Preciso, poi, che io il tuo aiuto non l'ho preteso, la tua è una cortesia, che se non mi vuoi fare non la fai. Ci saranno sicuramente altre persone disposte ad aiutare, peraltro rispondere in modo completo e competente ti da un ritorno d'immagine alla tua bella firma; rispondere come hai fatto tu nella prima risposta ti da, e ti ha dato, sicuramente un ritorno di immagine negativo. Ma questo sta a te capirlo.

Per il consiglio che mi hai dato, grazie è una bella idea, non ci avevo mai pensato e sicuramente lo farò.

[guest]

A me non pare di averti risposto in modo scortese.
Ti ho semplicemente fatto notare che questo non è un helpdesk, e ti ho suggerito di leggere il log...

[zeta]

Per chi avesse riscontrato un problema simile al mio, ho trovato una guida sulla configurazione di apache per ridurne la vulnerabilità e aumentarne la sicurezza e stabilità: Server Limits for Apache Security