Linux系统中sysctl命令详解 sysctl -p、sysctl -a、sysctl -w
sysctl命令用于运行时配置内核参数，这些参数位于/proc/sys目录下。sysctl配置与显示在/proc/sys目录中的内核参数．可以用sysctl来设置或重新设置联网功能，如IP转发、IP碎片去除以及源路由检查等。用户只需要编辑/etc/sysctl.conf文件，即可手工或自动执行由sysctl控制的功能。
命令格式：
sysctl [-n] [-e] -w variable=value
sysctl [-n] [-e] -p
sysctl [-n] [-e] -a
常用参数的意义：
-w 临时改变某个指定参数的值，如
sysctl -w net.ipv4.ip_forward=1
-a 显示所有的系统参数
-p 从指定的文件加载系统参数，如不指定即从/etc/sysctl.conf中加载
如果仅仅是想临时改变某个系统参数的值，可以用两种方法来实现,例如想启用IP路由转发功能：
1) #echo 1 > /proc/sys/net/ipv4/ip_forward
2) #sysctl -w net.ipv4.ip_forward=1
以上两种方法都可能立即开启路由功能，但如果系统重启，或执行了
# service network restart
命令，所设置的值即会丢失，如果想永久保留配置，可以修改/etc/sysctl.conf文件
将 net.ipv4.ip_forward=0改为net.ipv4.ip_forward=1
1, sysctl命令的作用
在运行时配置内核参数
2,用法举例:
-w 用此选项来改变一个sysctl设置
例:sysctl -w net.ipv4.ip_forward=1
-p 载入sysctl配置文件
如-p后未指定路径，则载入 /etc/sysctl.conf
例: sysctl -p /etc/sysctl.conf
001 |
了解这些内核参数的意义对于解决问题会很有帮助。 |
002 |
sh-# sysctl -a |
003 |
kernel.sched_child_runs_first = 0 |
004 |
kernel.sched_min_granularity_ns = 750000 |
005 |
kernel.sched_latency_ns = 6000000 |
006 |
kernel.sched_wakeup_granularity_ns = 1000000 |
007 |
kernel.sched_tunable_scaling = 1 |
008 |
kernel.sched_migration_cost = 500000 |
009 |
kernel.sched_nr_migrate = 32 |
010 |
kernel.sched_time_avg = 1000 |
011 |
kernel.sched_shares_window = 10000000 |
012 |
kernel.timer_migration = 1 |
013 |
kernel.sched_rt_period_us = 1000000 |
014 |
kernel.sched_rt_runtime_us = 950000 |
015 |
kernel.panic = 0 |
016 |
kernel.core_uses_pid = 0 |
017 |
kernel.core_pattern = core |
018 |
kernel.core_pipe_limit = 0 |
019 |
kernel.tainted = 1 |
020 |
kernel.print-fatal-signals = 0 |
021 |
kernel.ctrl-alt-del = 0 |
022 |
kernel.modprobe = /sbin/modprobe |
023 |
kernel.modules_disabled = 0 |
024 |
kernel.hotplug = /sbin/hotplug |
025 |
kernel.sg-big-buff = 32768 |
026 |
kernel.cad_pid = 1 |
027 |
kernel.threads-max = 4606 |
028 |
kernel.random.poolsize = 4096 |
029 |
kernel.random.entropy_avail = 152 |
030 |
kernel.random.read_wakeup_threshold = 64 |
031 |
kernel.random.write_wakeup_threshold = 128 |
032 |
kernel.random.boot_id = 9e7b0657-6f91-4e94-9c05-55c49dd99da9 |
033 |
kernel.random.uuid = 309f03a1-28d0-47e0-9616-a390bb0349ba |
034 |
kernel.usermodehelper.bset = 4294967295 4294967295 |
035 |
kernel.usermodehelper.inheritable = 4294967295 4294967295 |
036 |
kernel.overflowuid = 65534 |
037 |
kernel.overflowgid = 65534 |
038 |
kernel.pid_max = 32768 |
039 |
kernel.panic_on_oops = 0 |
040 |
kernel.printk = 7 4 1 7 |
041 |
kernel.printk_ratelimit = 5 |
042 |
kernel.printk_ratelimit_burst = 10 |
043 |
kernel.printk_delay = 0 |
044 |
kernel.dmesg_restrict = 0 |
045 |
kernel.kptr_restrict = 0 |
046 |
kernel.ngroups_max = 65536 |
047 |
kernel.randomize_va_space = 1 |
048 |
kernel.max_lock_depth = 1024 |
049 |
kernel.poweroff_cmd = /sbin/poweroff |
050 |
kernel.blk_iopoll = 1 |
051 |
kernel.ostype = Linux |
052 |
kernel.osrelease = 3.0.13 |
053 |
kernel.version = #1 PREEMPT Tue Oct 8 16:24:52 CST 2013 |
054 |
kernel.hostname= 1234 |
055 |
kernel.domainname = (none) |
056 |
kernel.shmmax = 33554432 |
057 |
kernel.shmall = 2097152 |
058 |
kernel.shmmni = 4096 |
059 |
kernel.msgmax = 8192 |
060 |
kernel.msgmni = 575 |
061 |
kernel.msgmnb = 16384 |
062 |
kernel.sem = 250 32000 32 128 |
063 |
kernel.auto_msgmni = 1 |
064 |
kernel.pty.max = 4096 |
065 |
kernel.pty.nr = 0 |
066 |
vm.overcommit_memory = 0 |
067 |
vm.panic_on_oom = 0 |
068 |
vm.oom_kill_allocating_task = 0 |
069 |
vm.oom_dump_tasks = 1 |
070 |
vm.overcommit_ratio = 50 |
071 |
vm.page-cluster = 3 |
072 |
vm.dirty_background_ratio = 10 |
073 |
vm.dirty_background_bytes = 0 |
074 |
vm.dirty_ratio = 20 |
075 |
vm.dirty_bytes = 0 |
076 |
vm.dirty_writeback_centisecs = 500 |
077 |
vm.dirty_expire_centisecs = 3000 |
078 |
vm.nr_pdflush_threads = 0 |
079 |
vm.swappiness = 60 |
080 |
vm.lowmem_reserve_ratio = 256 32 32 |
081 |
vm.drop_caches = 0 |
082 |
vm.min_free_kbytes = 2188 |
083 |
vm.min_free_order_shift = 1 |
084 |
vm.percpu_pagelist_fraction = 0 |
085 |
vm.max_map_count = 65530 |
086 |
vm.laptop_mode = 0 |
087 |
vm.block_dump = 0 |
088 |
vm.vfs_cache_pressure = 100 |
089 |
vm.mmap_min_addr = 4096 |
090 |
vm.highmem_is_dirtyable = 0 |
091 |
vm.scan_unevictable_pages = 0 |
092 |
fs.inode-nr = 2145 0 |
093 |
fs.inode-state = 2145 0 0 0 0 0 0 |
094 |
fs.file-nr = 297 0 29469 |
095 |
fs.file-max = 29469 |
096 |
fs.nr_open = 1048576 |
097 |
fs.dentry-state = 2777 2184 45 0 0 0 |
098 |
fs.overflowuid = 65534 |
099 |
fs.overflowgid = 65534 |
100 |
fs.leases-enable= 1 |
101 |
fs.dir-notify-enable= 1 |
102 |
fs.lease-break-time= 45 |
103 |
fs.aio-nr = 0 |
104 |
fs.aio-max-nr = 65536 |
105 |
fs.inotify.max_user_instances = 128 |
106 |
fs.inotify.max_user_watches = 8192 |
107 |
fs.inotify.max_queued_events = 16384 |
108 |
fs.epoll.max_user_watches = 111805 |
109 |
fs.suid_dumpable = 0 |
110 |
fs.pipe-max-size = 1048576 |
111 |
fs.mqueue.queues_max = 256 |
112 |
fs.mqueue.msg_max = 10 |
113 |
fs.mqueue.msgsize_max = 8192 |
114 |
dev.scsi.logging_level = 0 |
115 |
net.core.somaxconn = 128 |
116 |
net.core.xfrm_aevent_etime = 10 |
117 |
net.core.xfrm_aevent_rseqth = 2 |
118 |
net.core.xfrm_larval_drop = 1 |
119 |
net.core.xfrm_acq_expires = 30 |
120 |
net.core.wmem_max = 108544 |
121 |
net.core.rmem_max = 108544 |
122 |
net.core.wmem_default = 108544 |
123 |
net.core.rmem_default = 108544 |
124 |
net.core.dev_weight = 64 |
125 |
net.core.netdev_max_backlog = 1000 |
126 |
net.core.netdev_tstamp_prequeue = 1 |
127 |
net.core.message_cost = 5 |
128 |
net.core.message_burst = 10 |
129 |
net.core.optmem_max = 10240 |
130 |
net.core.netdev_budget = 300 |
131 |
net.core.warnings = 1 |
132 |
net.ipv4.route.gc_thresh = 4096 |
133 |
net.ipv4.route.max_size = 65536 |
134 |
net.ipv4.route.gc_min_interval = 0 |
135 |
net.ipv4.route.gc_min_interval_ms = 500 |
136 |
net.ipv4.route.gc_timeout = 300 |
137 |
net.ipv4.route.gc_interval = 60 |
138 |
net.ipv4.route.redirect_load = 4 |
139 |
net.ipv4.route.redirect_number = 9 |
140 |
net.ipv4.route.redirect_silence = 4096 |
141 |
net.ipv4.route.error_cost = 200 |
142 |
net.ipv4.route.error_burst = 1000 |
143 |
net.ipv4.route.gc_elasticity = 8 |
144 |
net.ipv4.route.mtu_expires = 600 |
145 |
net.ipv4.route.min_pmtu = 552 |
146 |
net.ipv4.route.min_adv_mss = 256 |
147 |
net.ipv4.neigh.default.mcast_solicit = 3 |
148 |
net.ipv4.neigh.default.ucast_solicit = 3 |
149 |
net.ipv4.neigh.default.app_solicit = 0 |
150 |
net.ipv4.neigh.default.retrans_time = 100 |
151 |
net.ipv4.neigh.default.base_reachable_time = 30 |
152 |
net.ipv4.neigh.default.delay_first_probe_time = 5 |
153 |
net.ipv4.neigh.default.gc_stale_time = 60 |
154 |
net.ipv4.neigh.default.unres_qlen = 3 |
155 |
net.ipv4.neigh.default.proxy_qlen = 64 |
156 |
net.ipv4.neigh.default.anycast_delay = 100 |
157 |
net.ipv4.neigh.default.proxy_delay = 80 |
158 |
net.ipv4.neigh.default.locktime = 100 |
159 |
net.ipv4.neigh.default.retrans_time_ms = 1000 |
160 |
net.ipv4.neigh.default.base_reachable_time_ms = 30000 |
161 |
net.ipv4.neigh.default.gc_interval = 30 |
162 |
net.ipv4.neigh.default.gc_thresh1 = 128 |
163 |
net.ipv4.neigh.default.gc_thresh2 = 512 |
164 |
net.ipv4.neigh.default.gc_thresh3 = 1024 |
165 |
net.ipv4.neigh.lo.mcast_solicit = 3 |
166 |
net.ipv4.neigh.lo.ucast_solicit = 3 |
167 |
net.ipv4.neigh.lo.app_solicit = 0 |
168 |
net.ipv4.neigh.lo.retrans_time = 100 |
169 |
net.ipv4.neigh.lo.base_reachable_time = 30 |
170 |
net.ipv4.neigh.lo.delay_first_probe_time = 5 |
171 |
net.ipv4.neigh.lo.gc_stale_time = 60 |
172 |
net.ipv4.neigh.lo.unres_qlen = 3 |
173 |
net.ipv4.neigh.lo.proxy_qlen = 64 |
174 |
net.ipv4.neigh.lo.anycast_delay = 100 |
175 |
net.ipv4.neigh.lo.proxy_delay = 80 |
176 |
net.ipv4.neigh.lo.locktime = 100 |
177 |
net.ipv4.neigh.lo.retrans_time_ms = 1000 |
178 |
net.ipv4.neigh.lo.base_reachable_time_ms = 30000 |
179 |
net.ipv4.neigh.eth0.mcast_solicit = 3 |
180 |
net.ipv4.neigh.eth0.ucast_solicit = 3 |
181 |
net.ipv4.neigh.eth0.app_solicit = 0 |
182 |
net.ipv4.neigh.eth0.retrans_time = 100 |
183 |
net.ipv4.neigh.eth0.base_reachable_time = 30 |
184 |
net.ipv4.neigh.eth0.delay_first_probe_time = 5 |
185 |
net.ipv4.neigh.eth0.gc_stale_time = 60 |
186 |
net.ipv4.neigh.eth0.unres_qlen = 3 |
187 |
net.ipv4.neigh.eth0.proxy_qlen = 64 |
188 |
net.ipv4.neigh.eth0.anycast_delay = 100 |
189 |
net.ipv4.neigh.eth0.proxy_delay = 80 |
190 |
net.ipv4.neigh.eth0.locktime = 100 |
191 |
net.ipv4.neigh.eth0.retrans_time_ms = 1000 |
192 |
net.ipv4.neigh.eth0.base_reachable_time_ms = 30000 |
193 |
net.ipv4.neigh.sit0.mcast_solicit = 3 |
194 |
net.ipv4.neigh.sit0.ucast_solicit = 3 |
195 |
net.ipv4.neigh.sit0.app_solicit = 0 |
196 |
net.ipv4.neigh.sit0.retrans_time = 100 |
197 |
net.ipv4.neigh.sit0.base_reachable_time = 30 |
198 |
net.ipv4.neigh.sit0.delay_first_probe_time = 5 |
199 |
net.ipv4.neigh.sit0.gc_stale_time = 60 |
200 |
net.ipv4.neigh.sit0.unres_qlen = 3 |
201 |
net.ipv4.neigh.sit0.proxy_qlen = 64 |
202 |
net.ipv4.neigh.sit0.anycast_delay = 100 |
203 |
net.ipv4.neigh.sit0.proxy_delay = 80 |
204 |
net.ipv4.neigh.sit0.locktime = 100 |
205 |
net.ipv4.neigh.sit0.retrans_time_ms = 1000 |
206 |
net.ipv4.neigh.sit0.base_reachable_time_ms = 30000 |
207 |
net.ipv4.tcp_timestamps = 1 |
208 |
net.ipv4.tcp_window_scaling = 6 |
209 |
net.ipv4.tcp_sack = 1 |
210 |
net.ipv4.tcp_retrans_collapse = 1 |
211 |
net.ipv4.ip_default_ttl = 64 |
212 |
net.ipv4.ip_no_pmtu_disc = 0 |
213 |
net.ipv4.ip_nonlocal_bind = 0 |
214 |
net.ipv4.tcp_syn_retries = 5 |
215 |
net.ipv4.tcp_synack_retries = 5 |
216 |
net.ipv4.tcp_max_orphans = 8192 |
217 |
net.ipv4.tcp_max_tw_buckets = 8192 |
218 |
net.ipv4.ip_dynaddr = 0 |
219 |
net.ipv4.tcp_keepalive_time = 7200 |
220 |
net.ipv4.tcp_keepalive_probes = 9 |
221 |
net.ipv4.tcp_keepalive_intvl = 75 |
222 |
net.ipv4.tcp_retries1 = 3 |
223 |
net.ipv4.tcp_retries2 = 15 |
224 |
net.ipv4.tcp_fin_timeout = 60 |
225 |
net.ipv4.tcp_tw_recycle = 0 |
226 |
net.ipv4.tcp_abort_on_overflow = 0 |
227 |
net.ipv4.tcp_stdurg = 0 |
228 |
net.ipv4.tcp_rfc1337 = 0 |
229 |
net.ipv4.tcp_max_syn_backlog = 128 |
230 |
net.ipv4.ip_local_port_range = 32768 61000 |
231 |
net.ipv4.ip_local_reserved_ports = |
232 |
net.ipv4.igmp_max_memberships = 20 |
233 |
net.ipv4.igmp_max_msf = 10 |
234 |
net.ipv4.inet_peer_threshold = 65664 |
235 |
net.ipv4.inet_peer_minttl = 120 |
236 |
net.ipv4.inet_peer_maxttl = 600 |
237 |
net.ipv4.inet_peer_gc_mintime = 10 |
238 |
net.ipv4.inet_peer_gc_maxtime = 120 |
239 |
net.ipv4.tcp_orphan_retries = 0 |
240 |
net.ipv4.tcp_fack = 1 |
241 |
net.ipv4.tcp_reordering = 3 |
242 |
net.ipv4.tcp_ecn = 2 |
243 |
net.ipv4.tcp_dsack = 1 |
244 |
net.ipv4.tcp_mem = 7014 9354 14028 |
245 |
net.ipv4.tcp_wmem = 4096 16384 299328 |
246 |
net.ipv4.tcp_rmem = 4096 87380 299328 |
247 |
net.ipv4.tcp_app_win = 31 |
248 |
net.ipv4.tcp_adv_win_scale = 2 |
249 |
net.ipv4.tcp_tw_reuse = 0 |
250 |
net.ipv4.tcp_frto = 2 |
251 |
net.ipv4.tcp_frto_response = 0 |
252 |
net.ipv4.tcp_low_latency = 0 |
253 |
net.ipv4.tcp_no_metrics_save = 0 |
254 |
net.ipv4.tcp_moderate_rcvbuf = 1 |
255 |
net.ipv4.tcp_tso_win_divisor = 3 |
256 |
net.ipv4.tcp_congestion_control = cubic |
257 |
net.ipv4.tcp_abc = 0 |
258 |
net.ipv4.tcp_mtu_probing = 0 |
259 |
net.ipv4.tcp_base_mss = 512 |
260 |
net.ipv4.tcp_workaround_signed_windows = 0 |
261 |
net.ipv4.tcp_slow_start_after_idle = 1 |
262 |
net.ipv4.tcp_available_congestion_control = cubic reno |
263 |
net.ipv4.tcp_allowed_congestion_control = cubic reno |
264 |
net.ipv4.tcp_max_ssthresh = 0 |
265 |
net.ipv4.tcp_cookie_size = 0 |
266 |
net.ipv4.tcp_thin_linear_timeouts = 0 |
267 |
net.ipv4.tcp_thin_dupack = 0 |
268 |
net.ipv4.udp_mem = 7014 9354 14028 |
269 |
net.ipv4.udp_rmem_min = 4096 |
270 |
net.ipv4.udp_wmem_min = 4096 |
271 |
net.ipv4.conf.all.forwarding = 0 |
272 |
net.ipv4.conf.all.mc_forwarding = 0 |
273 |
net.ipv4.conf.all.accept_redirects = 1 |
274 |
net.ipv4.conf.all.secure_redirects = 1 |
275 |
net.ipv4.conf.all.shared_media = 1 |
276 |
net.ipv4.conf.all.rp_filter = 0 |
277 |
net.ipv4.conf.all.send_redirects = 1 |
278 |
net.ipv4.conf.all.accept_source_route = 0 |
279 |
net.ipv4.conf.all.accept_local = 0 |
280 |
net.ipv4.conf.all.src_valid_mark = 0 |
281 |
net.ipv4.conf.all.proxy_arp = 0 |
282 |
net.ipv4.conf.all.medium_id = 0 |
283 |
net.ipv4.conf.all.bootp_relay = 0 |
284 |
net.ipv4.conf.all.log_martians = 0 |
285 |
net.ipv4.conf.all.tag = 0 |
286 |
net.ipv4.conf.all.arp_filter = 0 |
287 |
net.ipv4.conf.all.arp_announce = 0 |
288 |
net.ipv4.conf.all.arp_ignore = 0 |
289 |
net.ipv4.conf.all.arp_accept = 0 |
290 |
net.ipv4.conf.all.arp_notify = 0 |
291 |
net.ipv4.conf.all.proxy_arp_pvlan = 0 |
292 |
net.ipv4.conf.all.disable_xfrm = 0 |
293 |
net.ipv4.conf.all.disable_policy = 0 |
294 |
net.ipv4.conf.all.force_igmp_version = 0 |
295 |
net.ipv4.conf.all.promote_secondaries = 0 |
296 |
net.ipv4.conf.default.forwarding = 0 |
297 |
net.ipv4.conf.default.mc_forwarding = 0 |
298 |
net.ipv4.conf.default.accept_redirects = 1 |
299 |
net.ipv4.conf.default.secure_redirects = 1 |
300 |
net.ipv4.conf.default.shared_media = 1 |
301 |
net.ipv4.conf.default.rp_filter = 0 |
302 |
net.ipv4.conf.default.send_redirects = 1 |
303 |
net.ipv4.conf.default.accept_source_route = 1 |
304 |
net.ipv4.conf.default.accept_local = 0 |
305 |
net.ipv4.conf.default.src_valid_mark = 0 |
306 |
net.ipv4.conf.default.proxy_arp = 0 |
307 |
net.ipv4.conf.default.medium_id = 0 |
308 |
net.ipv4.conf.default.bootp_relay = 0 |
309 |
net.ipv4.conf.default.log_martians = 0 |
310 |
net.ipv4.conf.default.tag = 0 |
311 |
net.ipv4.conf.default.arp_filter = 0 |
312 |
net.ipv4.conf.default.arp_announce = 0 |
313 |
net.ipv4.conf.default.arp_ignore = 0 |
314 |
net.ipv4.conf.default.arp_accept = 0 |
315 |
net.ipv4.conf.default.arp_notify = 0 |
316 |
net.ipv4.conf.default.proxy_arp_pvlan = 0 |
317 |
net.ipv4.conf.default.disable_xfrm = 0 |
318 |
net.ipv4.conf.default.disable_policy = 0 |
319 |
net.ipv4.conf.default.force_igmp_version = 0 |
320 |
net.ipv4.conf.default.promote_secondaries = 0 |
321 |
net.ipv4.conf.lo.forwarding = 0 |
322 |
net.ipv4.conf.lo.mc_forwarding = 0 |
323 |
net.ipv4.conf.lo.accept_redirects = 1 |
324 |
net.ipv4.conf.lo.secure_redirects = 1 |
325 |
net.ipv4.conf.lo.shared_media = 1 |
326 |
net.ipv4.conf.lo.rp_filter = 0 |
327 |
net.ipv4.conf.lo.send_redirects = 1 |
328 |
net.ipv4.conf.lo.accept_source_route = 1 |
329 |
net.ipv4.conf.lo.accept_local = 0 |
330 |
net.ipv4.conf.lo.src_valid_mark = 0 |
331 |
net.ipv4.conf.lo.proxy_arp = 0 |
332 |
net.ipv4.conf.lo.medium_id = 0 |
333 |
net.ipv4.conf.lo.bootp_relay = 0 |
334 |
net.ipv4.conf.lo.log_martians = 0 |
335 |
net.ipv4.conf.lo.tag = 0 |
336 |
net.ipv4.conf.lo.arp_filter = 0 |
337 |
net.ipv4.conf.lo.arp_announce = 0 |
338 |
net.ipv4.conf.lo.arp_ignore = 0 |
339 |
net.ipv4.conf.lo.arp_accept = 0 |
340 |
net.ipv4.conf.lo.arp_notify = 0 |
341 |
net.ipv4.conf.lo.proxy_arp_pvlan = 0 |
342 |
net.ipv4.conf.lo.disable_xfrm = 1 |
343 |
net.ipv4.conf.lo.disable_policy = 1 |
344 |
net.ipv4.conf.lo.force_igmp_version = 0 |
345 |
net.ipv4.conf.lo.promote_secondaries = 0 |
346 |
net.ipv4.conf.eth0.forwarding = 0 |
347 |
net.ipv4.conf.eth0.mc_forwarding = 0 |
348 |
net.ipv4.conf.eth0.accept_redirects = 1 |
349 |
net.ipv4.conf.eth0.secure_redirects = 1 |
350 |
net.ipv4.conf.eth0.shared_media = 1 |
351 |
net.ipv4.conf.eth0.rp_filter = 0[ 2414.137398] process `sysctl' is using deprecated sysctl (syscall) net.ipv6.neigh.default.retrans_time; Use net.ipv6.neigh.default.retrans_time_ms instead. |
352 |
353 |
net.ipv4.conf.eth0.send_redirects = 1 |
354 |
net.ipv4.conf.eth0.accept_source_route = 1 |
355 |
net.ipv4.conf.eth0.accept_local = 0 |
356 |
net.ipv4.conf.eth0.src_valid_mark = 0 |
357 |
net.ipv4.conf.eth0.proxy_arp = 0 |
358 |
net.ipv4.conf.eth0.medium_id = 0 |
359 |
net.ipv4.conf.eth0.bootp_relay = 0 |
360 |
net.ipv4.conf.eth0.log_martians = 0 |
361 |
net.ipv4.conf.eth0.tag = 0 |
362 |
net.ipv4.conf.eth0.arp_filter = 0 |
363 |
net.ipv4.conf.eth0.arp_announce = 0 |
364 |
net.ipv4.conf.eth0.arp_ignore = 0 |
365 |
net.ipv4.conf.eth0.arp_accept = 0 |
366 |
net.ipv4.conf.eth0.arp_notify = 0 |
367 |
net.ipv4.conf.eth0.proxy_arp_pvlan = 0 |
368 |
net.ipv4.conf.eth0.disable_xfrm = 0 |
369 |
net.ipv4.conf.eth0.disable_policy = 0 |
370 |
net.ipv4.conf.eth0.force_igmp_version = 0 |
371 |
net.ipv4.conf.eth0.promote_secondaries = 0 |
372 |
net.ipv4.conf.sit0.forwarding = 0 |
373 |
net.ipv4.conf.sit0.mc_forwarding = 0 |
374 |
net.ipv4.conf.sit0.accept_redirects = 1 |
375 |
net.ipv4.conf.sit0.secure_redirects = 1 |
376 |
net.ipv4.conf.sit0.shared_media = 1 |
377 |
net.ipv4.conf.sit0.rp_filter = 0 |
378 |
net.ipv4.conf.sit0.send_redirects = 1 |
379 |
net.ipv4.conf.sit0.accept_source_route = 1 |
380 |
net.ipv4.conf.sit0.accept_local = 0 |
381 |
net.ipv4.conf.sit0.src_valid_mark = 0 |
382 |
net.ipv4.conf.sit0.proxy_arp = 0 |
383 |
net.ipv4.conf.sit0.medium_id = 0 |
384 |
net.ipv4.conf.sit0.bootp_relay = 0 |
385 |
net.ipv4.conf.sit0.log_martians = 0 |
386 |
net.ipv4.conf.sit0.tag = 0 |
387 |
net.ipv4.conf.sit0.arp_filter = 0 |
388 |
net.ipv4.conf.sit0.arp_announce = 0 |
389 |
net.ipv4.conf.sit0.arp_ignore = 0 |
390 |
net.ipv4.conf.sit0.arp_accept = 0 |
391 |
net.ipv4.conf.sit0.arp_notify = 0 |
392 |
net.ipv4.conf.sit0.proxy_arp_pvlan = 0 |
393 |
net.ipv4.conf.sit0.disable_xfrm = 0 |
394 |
net.ipv4.conf.sit0.disable_policy = 0 |
395 |
net.ipv4.conf.sit0.force_igmp_version = 0 |
396 |
net.ipv4.conf.sit0.promote_secondaries = 0 |
397 |
net.ipv4.ip_forward = 0 |
398 |
net.ipv4.xfrm4_gc_thresh = 32768 |
399 |
net.ipv4.ipfrag_high_thresh = 262144 |
400 |
net.ipv4.ipfrag_low_thresh = 196608 |
401 |
net.ipv4.ipfrag_time = 30 |
402 |
net.ipv4.icmp_echo_ignore_all = 0 |
403 |
net.ipv4.icmp_echo_ignore_broadcasts = 1 |
404 |
net.ipv4.icmp_ignore_bogus_error_responses = 1 |
405 |
net.ipv4.icmp_errors_use_inbound_ifaddr = 0 |
406 |
net.ipv4.icmp_ratelimit = 1000 |
407 |
net.ipv4.icmp_ratemask = 6168 |
408 |
net.ipv4.rt_cache_rebuild_count = 4 |
409 |
net.ipv4.ping_group_range = 1 0 |
410 |
net.ipv4.ipfrag_secret_interval = 600 |
411 |
net.ipv4.ipfrag_max_dist = 64 |
412 |
net.ipv6.neigh.default.mcast_solicit = 3 |
413 |
net.ipv6.neigh.default.ucast_solicit = 3 |
414 |
net.ipv6.neigh.default.app_solicit = 0 |
415 |
net.ipv6.neigh.default.retrans_time = 200 |
416 |
net.ipv6.neigh.default.base_reachable_time = 30 |
417 |
net.ipv6.neigh.default.delay_first_probe_time = 5 |
418 |
net.ipv6.neigh.default.gc_stale_time = 60 |
419 |
net.ipv6.neigh.default.unres_qlen = 3 |
420 |
net.ipv6.neigh.default.proxy_qlen = 64 |
421 |
net.ipv6.neigh.default.anycast_delay = 100 |
422 |
net.ipv6.neigh.default.proxy_delay = 80 |
423 |
net.ipv6.neigh.default.locktime = 0 |
424 |
net.ipv6.neigh.default.retrans_time_ms = 1000 |
425 |
net.ipv6.neigh.default.base_reachable_time_ms = 30000 |
426 |
net.ipv6.neigh.default.gc_interval = 30 |
427 |
net.ipv6.neigh.default.gc_thresh1 = 128 |
428 |
net.ipv6.neigh.default.gc_thresh2 = 512 |
429 |
net.ipv6.neigh.default.gc_thresh3 = 1024 |
430 |
net.ipv6.neigh.lo.mcast_solicit = 3 |
431 |
net.ipv6.neigh.lo.ucast_solicit = 3 |
432 |
net.ipv6.neigh.lo.app_solicit = 0 |
433 |
net.ipv6.neigh.lo.retrans_time = 200 |
434 |
net.ipv6.neigh.lo.base_reachable_time = 30 |
435 |
net.ipv6.neigh.lo.delay_first_probe_time = 5 |
436 |
net.ipv6.neigh.lo.gc_stale_time = 60 |
437 |
net.ipv6.neigh.lo.unres_qlen = 3 |
438 |
net.ipv6.neigh.lo.proxy_qlen = 64 |
439 |
net.ipv6.neigh.lo.anycast_delay = 100 |
440 |
net.ipv6.neigh.lo.proxy_delay = 80 |
441 |
net.ipv6.neigh.lo.locktime = 0 |
442 |
net.ipv6.neigh.lo.retrans_time_ms = 1000 |
443 |
net.ipv6.neigh.lo.base_reachable_time_ms = 30000 |
444 |
net.ipv6.neigh.eth0.mcast_solicit = 3 |
445 |
net.ipv6.neigh.eth0.ucast_solicit = 3 |
446 |
net.ipv6.neigh.eth0.app_solicit = 0 |
447 |
net.ipv6.neigh.eth0.retrans_time = 200 |
448 |
net.ipv6.neigh.eth0.base_reachable_time = 30 |
449 |
net.ipv6.neigh.eth0.delay_first_probe_time = 5 |
450 |
net.ipv6.neigh.eth0.gc_stale_time = 60 |
451 |
net.ipv6.neigh.eth0.unres_qlen = 3 |
452 |
net.ipv6.neigh.eth0.proxy_qlen = 64 |
453 |
net.ipv6.neigh.eth0.anycast_delay = 100 |
454 |
net.ipv6.neigh.eth0.proxy_delay = 80 |
455 |
net.ipv6.neigh.eth0.locktime = 0 |
456 |
net.ipv6.neigh.eth0.retrans_time_ms = 1000 |
457 |
net.ipv6.neigh.eth0.base_reachable_time_ms = 30000 |
458 |
net.ipv6.neigh.sit0.mcast_solicit = 3 |
459 |
net.ipv6.neigh.sit0.ucast_solicit = 3 |
460 |
net.ipv6.neigh.sit0.app_solicit = 0 |
461 |
net.ipv6.neigh.sit0.retrans_time = 200 |
462 |
net.ipv6.neigh.sit0.base_reachable_time = 30 |
463 |
net.ipv6.neigh.sit0.delay_first_probe_time = 5 |
464 |
net.ipv6.neigh.sit0.gc_stale_time = 60 |
465 |
net.ipv6.neigh.sit0.unres_qlen = 3 |
466 |
net.ipv6.neigh.sit0.proxy_qlen = 64 |
467 |
net.ipv6.neigh.sit0.anycast_delay = 100 |
468 |
net.ipv6.neigh.sit0.proxy_delay = 80 |
469 |
net.ipv6.neigh.sit0.locktime = 0 |
470 |
net.ipv6.neigh.sit0.retrans_time_ms = 1000 |
471 |
net.ipv6.neigh.sit0.base_reachable_time_ms = 30000 |
472 |
net.ipv6.xfrm6_gc_thresh = 1024 |
473 |
net.ipv6.conf.all.forwarding = 0 |
474 |
net.ipv6.conf.all.hop_limit = 64 |
475 |
net.ipv6.conf.all.mtu = 1280 |
476 |
net.ipv6.conf.all.accept_ra = 1 |
477 |
net.ipv6.conf.all.accept_redirects = 1 |
478 |
net.ipv6.conf.all.autoconf = 1 |
479 |
net.ipv6.conf.all.dad_transmits = 1 |
480 |
net.ipv6.conf.all.router_solicitations = 3 |
481 |
net.ipv6.conf.all.router_solicitation_interval = 4 |
482 |
net.ipv6.conf.all.router_solicitation_delay = 1 |
483 |
net.ipv6.conf.all.force_mld_version = 0 |
484 |
net.ipv6.conf.all.max_addresses = 16 |
485 |
net.ipv6.conf.all.accept_ra_defrtr = 1 |
486 |
net.ipv6.conf.all.accept_ra_pinfo = 1 |
487 |
net.ipv6.conf.all.proxy_ndp = 0 |
488 |
net.ipv6.conf.all.accept_source_route = 0 |
489 |
net.ipv6.conf.all.disable_ipv6 = 1 |
490 |
net.ipv6.conf.all.accept_dad = 1 |
491 |
net.ipv6.conf.all.force_tllao = 0 |
492 |
net.ipv6.conf.default.forwarding = 0 |
493 |
net.ipv6.conf.default.hop_limit = 64 |
494 |
net.ipv6.conf.default.mtu = 1280 |
495 |
net.ipv6.conf.default.accept_ra = 1 |
496 |
net.ipv6.conf.default.accept_redirects = 1 |
497 |
net.ipv6.conf.default.autoconf = 1 |
498 |
net.ipv6.conf.default.dad_transmits = 1 |
499 |
net.ipv6.conf.default.router_solicitations = 3 |
500 |
net.ipv6.conf.default.router_solicitation_interval = 4 |
501 |
net.ipv6.conf.default.router_solicitation_delay = 1 |
502 |
net.ipv6.conf.default.force_mld_version = 0 |
503 |
net.ipv6.conf.default.max_addresses = 16 |
504 |
net.ipv6.conf.default.accept_ra_defrtr = 1 |
505 |
net.ipv6.conf.default.accept_ra_pinfo = 1 |
506 |
net.ipv6.conf.default.proxy_ndp = 0 |
507 |
net.ipv6.conf.default.accept_source_route = 0 |
508 |
net.ipv6.conf.default.disable_ipv6 = 1 |
509 |
net.ipv6.conf.default.accept_dad = 1 |
510 |
net.ipv6.conf.default.force_tllao = 0 |
511 |
net.ipv6.conf.lo.forwarding = 0 |
512 |
net.ipv6.conf.lo.hop_limit = 64 |
513 |
net.ipv6.conf.lo.mtu = 16436 |
514 |
net.ipv6.conf.lo.accept_ra = 1 |
515 |
net.ipv6.conf.lo.accept_redirects = 1 |
516 |
net.ipv6.conf.lo.autoconf = 1 |
517 |
net.ipv6.conf.lo.dad_transmits = 1 |
518 |
net.ipv6.conf.lo.router_solicitations = 3 |
519 |
net.ipv6.conf.lo.router_solicitation_interval = 4 |
520 |
net.ipv6.conf.lo.router_solicitation_delay = 1 |
521 |
net.ipv6.conf.lo.force_mld_version = 0 |
522 |
net.ipv6.conf.lo.max_addresses = 16 |
523 |
net.ipv6.conf.lo.accept_ra_defrtr = 1 |
524 |
net.ipv6.conf.lo.accept_ra_pinfo = 1 |
525 |
net.ipv6.conf.lo.proxy_ndp = 0 |
526 |
net.ipv6.conf.lo.accept_source_route = 0 |
527 |
net.ipv6.conf.lo.disable_ipv6 = 1 |
528 |
net.ipv6.conf.lo.accept_dad = -1 |
529 |
net.ipv6.conf.lo.force_tllao = 0 |
530 |
net.ipv6.conf.eth0.forwarding = 0 |
531 |
net.ipv6.conf.eth0.hop_limit = 64 |
532 |
net.ipv6.conf.eth0.mtu = 1500 |
533 |
net.ipv6.conf.eth0.accept_ra = 1 |
534 |
net.ipv6.conf.eth0.accept_redirects = 1 |
535 |
net.ipv6.conf.eth0.autoconf = 1 |
536 |
net.ipv6.conf.eth0.dad_transmits = 1 |
537 |
net.ipv6.conf.eth0.router_solicitations = 3 |
538 |
net.ipv6.conf.eth0.router_solicitation_interval = 4 |
539 |
net.ipv6.conf.eth0.router_solicitation_delay = 1 |
540 |
net.ipv6.conf.eth0.force_mld_version = 0 |
541 |
net.ipv6.conf.eth0.max_addresses = 16 |
542 |
net.ipv6.conf.eth0.accept_ra_defrtr = 1 |
543 |
net.ipv6.conf.eth0.accept_ra_pinfo = 1 |
544 |
net.ipv6.conf.eth0.proxy_ndp = 0 |
545 |
net.ipv6.conf.eth0.accept_source_route = 0 |
546 |
net.ipv6.conf.eth0.disable_ipv6 = 1 |
547 |
net.ipv6.conf.eth0.accept_dad = 1 |
548 |
net.ipv6.conf.eth0.force_tllao = 0 |
549 |
net.ipv6.conf.sit0.forwarding = 0 |
550 |
net.ipv6.conf.sit0.hop_limit = 64 |
551 |
net.ipv6.conf.sit0.mtu = 1480 |
552 |
net.ipv6.conf.sit0.accept_ra = 1 |
553 |
net.ipv6.conf.sit0.accept_redirects = 1 |
554 |
net.ipv6.conf.sit0.autoconf = 1 |
555 |
net.ipv6.conf.sit0.dad_transmits = 1 |
556 |
net.ipv6.conf.sit0.router_solicitations = 3 |
557 |
net.ipv6.conf.sit0.router_solicitation_interval = 4 |
558 |
net.ipv6.conf.sit0.router_solicitation_delay = 1 |
559 |
net.ipv6.conf.sit0.force_mld_version = 0 |
560 |
net.ipv6.conf.sit0.max_addresses = 16 |
561 |
net.ipv6.conf.sit0.accept_ra_defrtr = 1 |
562 |
net.ipv6.conf.sit0.accept_ra_pinfo = 1 |
563 |
net.ipv6.conf.sit0.proxy_ndp = 0 |
564 |
net.ipv6.conf.sit0.accept_source_route = 0 |
565 |
net.ipv6.conf.sit0.disable_ipv6 = 1 |
566 |
net.ipv6.conf.sit0.accept_dad = -1 |
567 |
net.ipv6.conf.sit0.force_tllao = 0 |
568 |
net.ipv6.ip6frag_high_thresh = 262144 |
569 |
net.ipv6.ip6frag_low_thresh = 196608 |
570 |
net.ipv6.ip6frag_time = 60 |
571 |
net.ipv6.route.gc_thresh = 1024 |
572 |
net.ipv6.route.max_size = 4096 |
573 |
net.ipv6.route.gc_min_interval = 0 |
574 |
net.ipv6.route.gc_timeout = 60 |
575 |
net.ipv6.route.gc_interval = 30 |
576 |
net.ipv6.route.gc_elasticity = 9 |
577 |
net.ipv6.route.mtu_expires = 600 |
578 |
net.ipv6.route.min_adv_mss = 1220 |
579 |
net.ipv6.route.gc_min_interval_ms = 500 |
580 |
net.ipv6.icmp.ratelimit = 1000 |
581 |
net.ipv6.bindv6only = 0 |
582 |
net.ipv6.ip6frag_secret_interval = 600 |
583 |
net.ipv6.mld_max_msf = 64 |
584 |
net.unix.max_dgram_qlen = 10 |
585 |
sh-# |